Chevy

Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

My cars check engine light comes off & on all the time. We…

My cars check engine...

My cars check engine light comes off & on all the time. We have had it scanned for codes and it just always says “multiple misfires” and the problem is the camshaft position sensor. My car does not have one, it’s a 2003 cavalier.

Mechanic's Assistant: Does the light stay on, or does it blink?

It’ll stay on

Mechanic's Assistant: Are you fixing your Cavalier yourself? What have you tried so far?

We have replaced the spark plugs, fuel injectors, coils, the ignition control module

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Also the fuel filter has been replaced

Show More
Show Less
Ask Your Own Chevy Question
Answered in 2 minutes by:
3/17/2018
Dan
Dan, Technician
Category: Chevy
Satisfied Customers: 25,674
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
Verified

Hello, my name is ***** ***** I'm here to help get your problem solved.

Ask Your Own Chevy Question

Was the coil and ignition module replaced due to this problem? How long ago? Thanks.

Ask Your Own Chevy Question
Customer reply replied 1 month ago
Alright cool thanks!

Was the coil and ignition module replaced due to this problem? How long ago? Thanks.

Ask Your Own Chevy Question
Customer reply replied 1 month ago
Yea it was! Bc the whole coil thing on the cavalier is one piece the ignition module came with it
Customer reply replied 1 month ago
It runs completely fine but sometimes does really soft misfires when it starts “acting up” after we replaced the fuel injectors it’s been acting better but the check engine light still comes on and reads the same code.

How often does code come on? Did you replace coil with a used one?

Ask Your Own Chevy Question
Customer reply replied 1 month ago
I forgot to add that we also replaced the crankshaft po
Customer reply replied 1 month ago
Position sensor *
Customer reply replied 1 month ago
The coils were brand new we replaced them a couple months ago. It comes on randomly like maybe once a week sometimes or once/twice every couple weeks

What is the actual camshaft position sensor code you are getting? Were you getting the camshaft position sensor code before replacing ignition module?

Ask Your Own Chevy Question
Customer reply replied 1 month ago
it’s the same code every single time no matter what we replace. I think it’s a p0430 code which leads me to believe it might just be my computer, I’ve taken it to 2 mechanics and they can’t figure it out. Though my car runs perfectly fine except for the subtle misfires every now and again.

P​0430 is related to the catalytic converter. When it misfires does it seem to happen more at idle or when going down the highway?

Ask Your Own Chevy Question
Customer reply replied 1 month ago
It happens under 2000rpms is when it misfires
Customer reply replied 1 month ago
That’s the only time it will misfire is under 2000rpms
Customer reply replied 1 month ago
It’s been doing this for almost 6 months and when it first started having problems it completely shut off and that’s when the problems really started to happen and we started replacing things. It also in the beginning would suck gas but after replacing some things it stopped that.

I​ would consider replacing the ignition module again. The ignition module acts as the camshaft position sensor on this vehicle so if you are getting camshaft position sensor codes that would be the place to start. I'd also try to wiggle wiring between ignition module and PCM to see if you can get it to act up which would point toward wiring/connection problem. Let me know if you have ore questions, thanks.

Dan
Dan, Technician
Category: Chevy
Satisfied Customers: 25,674
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
Verified
Dan and 87 other Chevy Specialists are ready to help you
Ask your own question now
Customer reply replied 1 month ago
Alright thanks!

No problem, let me know how it goes or if you need anything. The coil/ignition module is problem is misfires on this vehicle about 95% of time. The ignition module is cause of camshaft position code 95% of time. I've seen timing chain also cause ca sensor code but that wouldn't be a intermittent problem if that was the case.

Ask Your Own Chevy Question
Was this answer helpful?
Ask Dan Your Own Question
Dan
Dan
Dan, Technician
Category: Chevy
Satisfied Customers: 25,674
25,674 Satisfied Customers
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database

Dan is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money.

Todd LRochester NY

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

Chevy Technician

15,289 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

Chevy Technician

9,357 satisfied customers

15 years GM master tech

Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

8,866 satisfied customers

Have owned a repair shop for 25 yrs.

Dave Nova

Dave Nova

Chevrolet Technician

7,092 satisfied customers

ASE Master Certification. GM World Class Certification

John

John

Master A.S.E Automotive technician

4,071 satisfied customers

A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician

Don - Mo Lurch

Don - Mo Lurch

Auto Mech / Electronics

2,918 satisfied customers

Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.

Ron Z.

Ron Z.

- Chevy Tech -

2,734 satisfied customers

18+yrs experience. State Inspector and Chevy Diagnostics

< Previous | Next >

Related Chevy Questions
Need new catalytic converter. Looked under truck to find the
Need new catalytic converter. Looked under truck to find the muffler is before the cat and the connecting flange is cut off by Midas a few years ago. Can I mount the cat behind the muffler, and how to… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
5,033 satisfied customers
How much is an estimate for a 09' Chevy 5.3 camshaft
How much is an estimate for a 09' Chevy 5.3 camshaft replacement? … read more
Chris (aka - Moose)
Chris (aka - Moose)
Vocational, Technical or Trade Scho
108 satisfied customers
A friend changed my spark plugs and wires but got the wires
a friend changed my spark plugs and wires but got the wires mixed up. Is there a simple diagram I can download to hook them up correctly. I think the firing order is 1-8-4-3-6-5-7-2, but I don't know … read more
Jerry Newton
Jerry Newton
Vocational, Technical or Trade Scho
2,066 satisfied customers
My 89 camaro lost spark after I changed the spark plugs and
My 89 camaro lost spark after I changed the spark plugs and distributor cap what could be the problem?… read more
Danny
Danny
Owner, lead mechanic
High School or GED
3,963 satisfied customers
Rotten egg smell, was told its the catalytic converter but
rotten egg smell, was told its the catalytic converter but not sure.. while doing a steady 30mph+ truck seems to skip and sounds like its dogging out … read more
Pete
Pete
Mechanic
Construction, Plant Fitter
130 satisfied customers
Where is the camshaft position senor located on a 2001 chevy
where is the camshaft position senor located on a 2001 chevy Silverado 4.8 1500 … read more
Gunvir Singh
Gunvir Singh
1,949 satisfied customers
Purchased new spark plug wires for 84 caprice not sure if
Purchased new spark plug wires for 84 caprice not sure if they are wired right I know thw the diagram for the engine it's just the right wires go where … read more
Gary
Gary
Chevy Technician
Vocational, Technical or Trade Scho
9,357 satisfied customers
2006 Chevy cobalt 2.4 no injector pulse, no spark. Plugs are
2006 Chevy cobalt 2.4 no injector pulse, no spark. Plugs are dry. Engine was replaced. Cranks no start… read more
Todd Audette
Todd Audette
Automotive Technician
Vocational, Technical or Trade School
353 satisfied customers
Wanting to know how many spark plugs for my 1999 blazer. i
wanting to know how many spark plugs for my 1999 blazer. i would like to replace them. … read more
Mechanic01
Mechanic01
2,358 satisfied customers
After I change spark plugs on a 2005 Colorado my warning
After I change spark plugs on a 2005 Colorado my warning light came on. Took to Chevy mech and they stated that I needed a valve job.. Only misses when at a stop or traffic light and not all of the ti… read more
Dan
Dan
Technician
25,674 satisfied customers
Need timing sprockets on a 2.8 engine crank and camshaft.
need timing sprockets on a 2.8 engine crank and camshaft … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
I have a code of po300 common misfire spark plugs were
I have a code of po300 common misfire spark plugs were changed and the coil pack on plug 1 check engine light comes on for a few days then goes off for a few days trying to figure what's going on … read more
Dan
Dan
Technician
25,674 satisfied customers
I change the spark plugs I change the wires I change all
I change the spark plugs I change the wires I change all three coils I changed the gas card and I still getting the same code po300 lot of people is telling me that he could be the ignition module at … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
5,033 satisfied customers
My catalytic converter went on my 2008 Impala I think
My catalytic converter went on my 2008 Impala I think because I had a wiring problem that made the fuse blow that controlled the circuit for the O2 sensors. Also I had a AIR valve that was stuck in th… read more
Chris (aka - Moose)
Chris (aka - Moose)
Vocational, Technical or Trade Scho
108 satisfied customers
My catalytic converter failed a couple of years ago. I think
My catalytic converter failed a couple of years ago. I think it was a combination of a stuck AIR valve and a wiring problem that kept causing the fuse that controls both O2 sensors and the EVAP soleno… read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
Misfire in cylinder #1 replaced coil and spark plugs, engine
misfire in cylinder #1 replaced coil and spark plugs, engine light on and flashing. Put in injector cleaner also. … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
I Want To Take Out The CATALYTIC CONVERTERS on my 2005 chevy
I Want To Take Out The CATALYTIC CONVERTERS on my 2005 chevy malibu can i disconect the stabilyzer ends and tist it to remove the cat … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Pete again, lack of power like a catalytic converter is
Hey Pete again, lack of power like a catalytic converter is stopped up or air filter stopped up, no codes, checked back pressure on pre-cat 02 sensors and after cats, doesnt appear to have stopped up … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x