Posted on Jan 15, 2009

Check enging light is on

The check engine light has come on and the car is still running fine while driving but is ideling a little rough and the gas milege is down a little. Should I suspect the O2 sensor?

imshipahoy Jan 15, 2009

Just from reading around, there are lots of things to look for. One of the most common is a posable hole in the gas filling tube. Even a small pinhole can set the code off. So I'm going to check this first. There is a small clip about this on youtube.

1 Answer

Anonymous

Contributor 1 Answer
Posted on Jan 15, 2009

Anonymous

Contributor

Joined: Jan 15, 2009

Answers

Questions

Helped

508

Points

Engine Light on Troubleshooting code from Auto Zone P0442, I replaced the gas cap and light still stay on?please advise

Add Your Answer

Upload

Upload an image from your computer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

Loading...

Include an image. It's worth a thousand words.

prev next

Related Questions:

0helpful

1answer

97 accord with auto trans start rough keep pressing the gas paddle now is fine. Now driving eng is warm car starts to buck and backfire

Any check engine light?

Read full answer

Apr 01, 2016 • Cars & Trucks

0helpful

1answer

93 3003 MERCEDES 2.8 DIDNT PASS SMOG NO CHECK ENG LIGHT ON SMOG GUY SAID EGR STUCK IDILES A LITTLE ROUGH BUT RUNS GOOD AT HIGH SPEEDS WHAT DO I DO?

run the fault codes to ensure that the EGR valve is faulty. Engine lights to not always come on unless there is something drastic going on with the engine /gearbox so that you can stop the car before damage is done.

Read full answer

Apr 25, 2014 • 1989 Mercedes-Benz 300-Class

0helpful

1answer

Idels rough and goes away at driving seeds dont know if its the mass air flow sensor can you test these at home it is 200.00 part and not returnable changed cap rotor wires fuel fiter cleaned throtle body...

Check all of the vacuum lines and hoses

Read full answer

Jun 17, 2010 • 1994 Nissan Sentra 4-Door

0helpful

1answer

4.3 L will not idel

check the Idle Stop Solenoid

Read full answer

May 22, 2010 • 1992 GMC Safari

0helpful

1answer

Lost power to engine

Check make sure all plugs are firing. Sounds like what my 93 Rodeo was doing-Idled okay but very rough when in gear. Turns out only 5 out of 6 plugs were firing due to a defective ignition module- 100 bucks later it works fine.

Hope this helps.

Read full answer

Mar 20, 2010 • 1992 Isuzu Trooper

0helpful

1answer

1992 4runner idels rough sometimes

Check the intake hose to make sure that it doesn't have a whole in it also check the air box that the filter goes in also. Mine was idling rough also and we found a whole in the filter box and the intake hose had a whole in it. Hope this helps.

Read full answer

Feb 23, 2010 • 1992 Toyota 4Runner

1helpful

1answer

Rough idle then stalls

Vacume leak or bad idle motor. With the car in park and running with the hood open listen for leaks moving your hand around the different hoses looking for a change in the sounds that you hear. The idel motor also makes the car idel up to 1500 RPM or so right at start-up then idel down, If it doesn;t the idel motor is likly. Check engine light is on when running? Test for codes, Follow code test charts don't skip any steps!.

Read full answer

Nov 02, 2009 • 1998 Chevrolet Malibu

3helpful

3answers

Rough idel/no power

As a former Audi technician, I can pretty much guarantee the coil packs are your problem.

Read full answer

Jan 25, 2009 • 2004 Audi A4

0helpful

1answer

Engine runs rough after about ten minutes /idles really low

Just trowing some suggestions out there, but, I would check the idle air control valve (solenoid) or the throttle position sensor. If they check out then my last guess would be the map sensor or the vaccuum to the map sensor. Hope I was able to help. Best wishes.

Read full answer

Jan 16, 2009 • 1991 Plymouth Laser

0helpful

2answers

Backfiring, rough idel

I would check the exhaust pipe a little closewr. White smoke can also mean a blown head gasket. Check the tail pipe to see if moisture is present. Also check coolant level. A blown head gasket can also cause related problems.

Bill

Read full answer

Nov 19, 2008 • 1999 Pontiac Grand Am GT

Not finding what you are looking for?

View Most Popular

1999 Legacy

Cars & Trucks

97 accord with auto trans start rough keep pressing the gas paddle now is fine. Now driving eng is warm car starts to buck and backfire

Cars & Trucks

518 views

Ask a Question

Usually answered in minutes!

Check Out the Latest Top Trucks Report!

View all Fixya Reports

Are you a Subaru Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Have a manual for 1999 Subaru Legacy? Or just drag it here!

Related Topics:

Check enging light is on