A vehicle fails an HC emission test at idle and 2,500 rpm, and the engine has an acceleration stumble. The heated oxygen sensor (HO2S) voltage is 0.1–0.3 volts on a scan tool, and the injector pulse width is high. No diagnostic trouble codes (DTCs) are found. When propane is directed into the air intake, HO2S voltage immediately increases and the injector pulse width decreases. The most likely cause of this problem is

A. a defective O2 sensor.
B. a defective powertrain control module (PCM).
C. low fuel-pump pressure.
D. an opening in the O2 sensor signal wire.

Answers

Answer 1

The most likely cause of the HC emission test failure and acceleration stumble in the vehicle, given the symptoms described, is C. low fuel-pump pressure.

An issue with low fuel-pump pressure can lead to an improper air-fuel mixture, which results in poor combustion and can cause high HC levels due to unburnt fuel. The information provided indicates that when propane is introduced, there is an immediate reaction from the HO2S sensor, and the injector pulse width decreases. This suggests that the engine was running lean (not enough fuel in the mixture) because the additional fuel (propane) helps to correct the mixture which is then sensed by the oxygen sensor. A defective oxygen sensor would likely not respond to the supplemental propane, and a defective PCM or an opening in the O2 sensor signal wire would likely have set a DTC. Therefore, low fuel-pump pressure is the probable cause, leading to an overly lean condition which the fuel injection system tries to correct by increasing the injector pulse width.


Related Questions

which of the following patterns of cell phone use can be observed in this chart

Answers

Answer:More people in Mexico use their cell phones to take pictures then then people in the United States

Explanation: Just took it

Answer:

The correct pattern of cell phone use that can be observed is people in Indonesia are just as likely to use their phones to make calls to send text messages.

Explanation:

Hope it helped!

What does the Children's Online Privacy Protection Act do?

Answers

Answer:

It limits the data that websites aimed at children under 13 can collect.

Explanation:

Final answer:

COPPA is a U.S. federal law that protects the privacy of children under 13 online by requiring parental consent for the collection of personal information. The California Children's Privacy Act further strengthens these protections. These laws also aim to educate families about online safety and to encourage the use of child-protective online services.

Explanation:

The Children's Online Privacy Protection Act (COPPA) is a U.S. federal law that was enacted to address online privacy concerns for children under 13 years of age. COPPA requires websites and online services to obtain parental consent before collecting, using, or disclosing personal information from children under 13. These regulations extend to social networking sites, which under COPPA and the General Data Protection Regulation (GDPR) in the EU, can only be accessed by children aged 13 and older.

Additionally, the California Children's Privacy Act, which came into effect in January 2020, provides even more stringent protections than COPPA, akin to those of the GDPR. This act strengthens requirements related to notice and consent, children's rights, enforcement among others. The 5 Rights Foundation further advocates for the protection of children's well-being online, emphasizing the importance of not tracking or profiling children and giving them control over their personal information. These regulations seek to empower families to protect their children's privacy and ensure that they use services that follow these child-protective laws.

It is important for families to understand and teach their children how to navigate online spaces safely, as younger children may lack the development and reasoning skills to identify and avoid online threats on their own. Federal actions such as COPPA, the Child Internet Protection Act (CIPA), and other laws are in place to promote children's digital safety and privacy, as well as to provide education about online dangers.

Which of the items below are nodes? fax, IC, NOC, printer, twisted pair cables and workstation.

Answers

The answer is Printer, workstation, NOC, and fax.

Any devices or systems connected to a network are called nodes. When defining a node, always have in mind that it is anything that has an IP address. For instance, if a network connects 5 computers, 1 file server, and 2 printers, there are 8 nodes on this network.

All of the following are career pathways in the architecture and construction career cluster

Answers

I need options to be able to answer this

What are the options to the question?

In a token ring system, how quickly is the token passed around the circuit? 50 times per second millions of times per second hundreds of times per second thousands of times per second

Answers

The data transmission speeds of token ring networks were 4Mbps and 16Mbps, implying that token frames were transmitted in the millions of times per second range.

Final answer:

A token in a token ring network can be passed around thousands to millions of times per second, depending on network bandwidth and the number of devices.

Explanation:

In a token ring network, the token is passed around at a rate that is dependent on the bandwidth of the network and the number of devices connected to the ring. While it's difficult to pinpoint an exact number without being specific about the network's conditions, if we take into account typical networks that operate at megabit per second speeds, it is reasonable to suggest that the token can be passed around thousands or even millions of times per second. The efficiency of token passing is a crucial part of why token ring protocols were used to ensure that collisions did not occur in a network, unlike in a system such as Ethernet.

50 POINTS
NOT B!
What was the original reason for the creation of ARPANET?

scientists and researchers could communicate and share information
universities were able to communicate with their students

students and teachers were able to communicate with researchers

scientists wanted their own satellite

Answers

The precursor to the Internet was jumpstarted in the early days of computing history, in 1969 with the U.S. Defense Department's Advanced Research Projects Agency Network (ARPANET). ARPA-funded researchers developed many of the protocols used for Internet communication today.

These groundbreaking ideas landed Licklider a position as director of the U.S. Department of Defense Advanced Research Projects Agency (ARPA, now known as DARPA), the government agency responsible for creating a time-sharing network of computers known as ARPANET, the precursor to today's Internet.

also because The precursor to the Internet was jumpstarted in the early days of computing history, in 1969 with the U.S. Defense Department's Advanced Research Projects Agency Network (ARPANET). ARPA-funded researchers developed many of the protocols used for Internet communication today.

she has 12 circles and has to shade 3/4 how many does she shade​

Answers

Number of circles shaded = 3/4 x 12

                                           = 9 circles

Please mark Brainliest if this helps you! :)

1/4 of 12 is 3, so she shades 9

What are interpersonal skills

Answers

The correct choice is the last one.

Interpersonal skills are the ability to communicate or interact well with other people.

What are the differences between analog and digital signals?

Answers

Or a digital signal might be a discrete representation of an analog waveform. ... That's the big difference between analog and digital waves. Analog waves are smooth and continuous, digital waves are stepping, square, and discrete.

Final answer:

Analog signals vary continuously and can easily merge by simple addition, representing real-world data like sound or images. In contrast, digital signals consist of binary code, which represents data as a series of ones and zeroes, and has advantages in precision and noise resistance.

Explanation:

Differences Between Analog and Digital Signals

The analog and digital signals represent data in different ways. An analog signal varies continuously, mirroring the real-world data it represents, such as sound or visual images. Examples include vibrations on a vinyl record or fluctuations in a magnetic tape that closely match the original sound frequencies and amplitudes. These signals can be easily merged by simple addition, as seen in analog photograph double exposures or the combined sound waves from a choir.

Conversely, a digital signal encodes data as binary code - ones and zeroes - switching between two fixed voltage values. In electronic devices, this signal manipulation is achieved with diodes, and transistors acting as on-off switches, which are either in a state of presence (1) or absence (0) of voltage. The transistor revolution and the subsequent creation of integrated circuits have facilitated massive advancements in data processing capabilities, leading to our current digital era dominated by computers and digital storage media like CDs, DVDs, and digital drives.

Moreover, digital signal processing has overtaken analog in many fields due to its precision and resistance to noise, as evident in modern oscilloscopes and the shift in nuclear physics towards digital over analog electronics. This paradigm shift to digital has led to more robust systems capable of sophisticated analyses far beyond what was possible with their analog predecessors.

describe a common error that presenters make during their presentation and how to remedy the error​

Answers

1 Lack of Preparation.

2 Poor Use of Visuals.

3 Inappropriate Humor.

4 Inappropriate Dress.

5 Not Knowing the Audience.

6 Non-Functioning Equipment.

7 Starting or Ending a Presentation Late.

8 Using a Monotone Voice.

1. Starts Stuttering

2. Panics

3. Starts to bite nails

4. Poor grammar

5. Inappropriate Dress

Janet has to create a web page for a software company that should be accessible from both desktop computers and mobile devices. What should Janet do to enable access to the web page from smart phones or tablets? A. create a separate version of the web page B. create a flexible layout for the web page C. create lower-resolution graphics for the web page D. create user controls for the web page E. create a web page with content videos

Answers

create a responsive website which adapts to every screen/devices. Answer is B.

on plato the answer is b

I’m in highschool, (sophomore) why is it saying I’m in middle school

Answers

The age that you put into your profile depends when what is displayed.

Maybe because you keep answering middle school level questions on the app?

What's the purpose of IP

Answers

Thank you for this question. The answer is that an Ip adress stands fo Internet Protocol which acts like a home adress. Bascily it helps you find a node in a network as the IP adress is made of letters and numbers separated by a full stop. I hope you are happy

La réponse est qu'une adresse IP correspond à un protocole Internet qui agit comme une adresse personnell

What is an rgv in coding

Answers

The RGB color model is an additive color model in which red, green and blue light are added together in various ways to reproduce a broad array of colors.

I think this is the right answer for your question

What do work places allow a company to do
A. They restrict access depending on job role
B. They connect a company’s website with its internal wiki
C. They allow a company to organize information
D. They provide a platform for collaboration

Answers

D. They provide a platform for collaboration

To insert a footnote in a document, a user would navigate to the _____ tab.

Answers

Answer

References tab.

Explanation

In MS word documents, you can add footnotes and endnotes by;

• Clicking the area to add a footnote

• Clicking references, then insert Footnote. The word program will insert a reference mark in the text and will add the footnote mark at the bottom of the page

• Type a footnote text.

Hope this Helps!

Answer

References

Step by step explanation

Footnote

Footnote is appear in the bottom of page. Using these footnote we can add some references to the document.

Steps involved in adding footnote:

Step 1: First we click where we want to add footnote

Step 2: Click References -> Insert footnote

Step 3: Type the footnote text

These are the three main steps for adding footnote

1. How many columns does the Bootstrap grid system divide the width of any parent container into?

Select one:
a. 12
b. 16
c. 8
d. 9

2. Bootstrap offers cross-compatibility among the major browsers.

Select one:
True
False

3. Bootstrap is typically used for creating mobile-ready designs.

Select one:
True
False

Answers

Answer:

1.   A. 12

2.  True

3.  True

Explanation:

I wish to create a software for elections management in Java how do i go about it?

Answers

If you wish you could go to Google Slides and present a presentation.

Wich is the correct process for selecting an entire row in a spreadsheet?
A.
Click on any cell in the row.
B.
Select Rows in the Insert menu.
C.
Select Rows in the Format menu.
D.
Click on the Row heading.

Answers

It is A. Click on any cell in the row.

I think the answer is A.

Hope this helps.

All of these concerns can be diagnosed using the paper test except for a

A. bad spark plug wire in the ignition system.
B. faulty injector on a multiport engine.
C. burned valve.
D. cracked exhaust manifold.

Answers

Only a cracked exhaust manifold can't be diagnosed using the paper test.

Final answer:

The paper test can diagnose issues such as a bad spark plug wire, faulty injector, or a cracked exhaust manifold, but it cannot diagnose a burned valve. Normal combustion and premature combustion are not directly related to the paper test but are important concepts for understanding engine operation.

Explanation:

The subject of this question is related to the diagnosis of various engine problems using a paper test. The correct option that cannot be diagnosed using the paper test is a burned valve. A burned valve would typically require a compression test or a leak-down test to diagnose because it affects the engine's ability to maintain compression rather than creating a visible symptom that could be detected with a paper test.

A bad spark plug wire in the ignition system can be diagnosed with a paper test, as can a faulty injector on a multiport engine, by checking for changes in the engine's idle when the paper is held near the suspected component. Similarly, a cracked exhaust manifold might be detected by noticing a change in airflow or exhaust gases escaping near the crack.

In contrast, normal combustion occurs when fuel is ignited by the spark plug and combustion spreads uniformly outward. If gasoline with an octane rating too low for the engine is used, it can ignite prematurely, leading to premature combustion, uneven burning, and issues such as knocking and pinging.

your brother is always complaining how slow his computer is. What single action can he take that will provide him the biggest performance gain and make his computer faster?

C10 introduction to computer exam1 answers

Answers

factory rest it. then get a virus check on it  

He could get a better CPU or Processor

which of the following subject lines would be best to use when applying for a position in a high school teacher

a. teacher job
b. Blank subject line
c. Re: Job Number 943
d. Educator with 8 years of classroom experience

Answers

Answer:

D. Educator with 8 years of classroom experience

Explanation:

I got it right on Edg2022

Some qualities of a good teacher include skills in communication, listening, collaboration, adaptability, empathy and patience. Other characteristics of effective teaching include an engaging classroom presence, value in real-world learning, exchange of best practices and a lifelong love of learning.

d. Educator with 8 years of classroom experience

What role does teacher experience play in classroom effectiveness?

Teaching experience is positively associated with student achievement gains throughout a teacher's career. As teachers gain experience, their students are more likely to do better on other measures of success beyond test scores, such as school attendance.

What is an effective and efficient teacher?

They are prepared, set clear and fair expectations, have a positive attitude, are patient with students, and assess their teaching on a regular basis. They are able to adjust their teaching strategies to fit both the students and the material, recognizing that different students learn in different ways.

To learn more about a good teacher, refer

https://brainly.com/question/23746466

#SPJ2

Select the correct answer.
Which of these mobile hardware components helps determine the orientation of a device?

A.
screen
B.
gyroscope
C.
keypad
D.
processor

Answers

Answer:

B). Gyroscope

Explanation:

Gyroscope is the device which helps to determine the orientation of a device.

1. Which markup language adds the ability to use video without requiring the user to download add-ons?

Answers

HTML5

HTML5 has fewer plug-ins like the ability to standardize how audio and video are presented on a Web page. It introduces the <video> element designed to remove the need to install 3rd party add-ons and plug-ins like adobe flash player. It also adds the <audio> element  too that allows pages to smoothly add audio files.

Which type of visual aid should students use to track small changes over time?

-maps
-line graphs
-pie charts
-diagrams

Answers

Line graphs are used to graph change in time

Line graphs would be the best type of visual aid to track small changes over time as they allow the viewer to easily observe trends and patterns over time.

What is Line graph?

A line graph is the best visual aid for tracking minor changes over time. This is due to the fact that line graphs are specifically designed to show the trend or changes in data over time.

They are effective at displaying small changes and trends over time because they make it simple to identify fluctuations and patterns in data.

Line graphs are the best visual aid for tracking small changes over time because they are ideal for displaying trends and patterns in data over time.

Thus, a line graphs have an x-axis for time and a y-axis for the values that are being tracked.

For more details regarding line graph, visit:

https://brainly.com/question/13185661

#SPJ2

Who invented google​

Answers

Larry Page and Sergey Brin

Are the persons that invented google. This is funny Because is was after googol. mathematically founded by Edward Kasner and James Newman.

Hopes this helps!

match the different stages of boot sequence with the order in which they occur.​

Answers

Answer:

1,4,5,6,3,2- i tried my best

Explanation:

This is the correct sequence:

6, 1, 4, 5, 3, 2

{System: how do you make a website without paying for anything? This is for my computer class.}

Answers

Hey, I'd like to tell you about a app I use a lot for making a Website.

I use "Google sites" Google sites is a website that I use all the time for work. Such as web quests and much more! I've had an amazing experience using this.

Here's how to get it:

Open a tab.The dots with 9 of them click on that.Scroll down and click Google Sites.Start creating!

Please note that in your questions you don't need the system and the "}". But you can do whatever you'd like.

Have an amazing day!

if you see someone harassing someone else online you should ​

Answers

Try to say something yourself, but if you are too scared, get an adult involved. The one bad thing you could do is ignore it.

I would recommend you to stand up or if your scared then talk to an Adult in private about the situation

desktop operating system is also called...……………………..
1.stand alone operating system
2.client operating system
3.mass operating system
4.common operating system

Answers

2. client operating system

Final answer:

A desktop operating system is also referred to as a stand-alone operating system, which operates on personal computers independently.

Explanation:

A desktop operating system is also called a stand-alone operating system. This term is used to describe an operating system that is installed on a personal computer or workstation and is capable of performing tasks without the need to be connected to a larger network. Over time, the evolution of operating systems included significant contributions from corporations and entities that engaged in the development of proprietary versions with similar functionality, such as Microsoft with DOS and Windows, IBM with AIX, Sun Microsystems with Solaris, and SGI with IRIX. These developments showcase the dynamic between open-source projects like UNIX and the commercial, proprietary iterations that evolved.

Other Questions
A 120 volt refrigerator uses 650 watts. Calculate how much work is done by the refrigerator in one hour.A) 9.7 JB) 39,000 JC) 2,300,000 JD) 4,100,000 J Which sentence includes an example of hyperbole How long should sales records such as invoices and monthly statements be stored? explain the difference between an electrically charged and a neutral object Who is Jesus? Explain. Which of these is the audience of a piece of literature? 116. use what you know about the area and circumference of circles to answer the questions below. show all work. leave answers in terms of . homework help if the radius of a circle is 14 units, what is its circumference? what is its area? if a circle has diameter 10 units, what is its circumference? what is its area? if a circle has circumference 100 units, what is its area? if a circle has circumference c, what is its area in terms of c? What all is required when graphing a function? Check all that apply.SlopeY-interceptX-interceptThe equationCalculatorAxis of symmetry Vertex Which excerpt from A Rumor of War contains the best example of sensory language? A.Having been among the first Americans to fight in Vietnam, I was also among the last to be evacuated, only a few hours before the North Vietnamese Army entered the capital.B.America seemed omnipotent then: the country could still claim it had never lost a war, and we believed we were ordained to play cop to the Communists robber and spread our own political faith around the world. C.The discovery that the men we had scorned as peasant guerrillas were, in fact, a lethal, determined enemy and the casualty lists that lengthened each week with nothing to show for the blood being spilled broke our early confidence. D.Weeks of bottled-up tensions would be released in a few minutes of orgiastic violence, men screaming and shouting obscenities above the explosions of grenades and the rapid, rippling bursts of automatic rifles. How does a shiny , silver and smoothsurface reduce the heat loss of a hot object to its cooler surroundings PLEASE HELP!!!!! EXPLAIN!!!!Sam conducted a survey to find out the favorite weekend activity of the students in his middle school. He asked 20 of his classmates. He found out that the favorite weekend activity of his middle school is playing video games because 75% of the students he surveyed liked to play video games. Explain why Sams sample may not be valid. Provide 2 or 3 sentences of explanation with facts to support your answer. How could Sam improve his survey to be more representative of his school? Could someone plz help with number 4 ? Thanks Find the area of A triangle with a base length of six units and a height of seven units What is the main idea of this passage from Act V of the tragedy of Macbeth by William Shakespeare Work out the base of a square with area, A = 4cm2. Which statement must be true about the diagram?Point K is a midpoint of .mJKN = mJKMRay KM is an angle bisector of NKL.JK = KL What scale factor is shown by this graph?1/2241SEE ATTACHED image! All metals a melt at high temperatures b conduct heat and electricity c contain iron d react with air and water How does laissez-faire economics reflect enlightenment ideas of challenging power and authority? Evaluate C(7, 3). 4 35 70 Steam Workshop Downloader