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Check Engine Light
The check engine light comes on in a car when the engine is experiencing a problem. Ask questions here about your car's check engine light.
7,238 Questions
Can a defected charcoal canister cause engine misfire or smog test failure?
yes it can cause smog test failure, check engine light will most likely pop up since it controls part of the vapor by filtering it.
Would cracked overflow bottle make check engine light come on?
The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to a parts store or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.
Where is the P0440 Evaporative Emission Control System Kia?
This ODB code could indicate a problem with any part of the evaporative emission control system: gas cap, rubber hoses, canister, or purge solenoid.
How do you reset the check engine light on a 2008 Chrysler Sebring?
The check engine light is reset with a scan tool after repairing the cause of the fault.
The check engine light is reset with a scan tool after repairing the cause of the fault.
How do you reset check engine light on 2001 ford crown Victoria?
Disconnect battery for 15 - 20 mintues
What is check engine code P0050 for 2002 dodge durango?
P0050 HO2S Heater Control Circuit Bank2 Sensor1
symptoms
Other than the MIL light illuminating you may not notice any performance issues.
cause
A short in the O2 sensor heater circuit or the sensor itself
A faulty O2 sensor heater
Wiring or connectors are broken or frayed to the sensor or relay
Bad PCM or ECM
The fix
Correct wiring short or loose connector found in inspection.
and/or
Replace the bank 2 sensor 1, O2 sensor
Replace PCM if circuit has failed and no wiring issues present, good O2 sensor
Oxygen sensor bank 2 sensor 1 (passenger side, before the cat) heater control circuit.
What does a flashing light on engine temperature gauge mean on a Citroen C3?
It means the engine may be overheating.
What can cause the check engine light to come on in a 1999 dodge durango?
The light comes on when the computer detects a malfunction that affects emissions or the transmission. You will need to have the codes checked with a scan tool to know possible causes.
What does auto diagnostic code P0137 02 signal low bank 1 sensor 2 mean?
You have a bad 02 sensor after the catalytic converter.
What does Engine System Fault warning mean on range rover vogue and can car still be driven?
Yes but you really should take it by an authorized repair shop
What does it mean when the engine light on a Honda Civic turns on?
It means that either the on-board engine monitoring has detected a fault or the vehicle is due a service. Often. the light can come on because there has been an unexplained electrical surge(spike) on the data bus and nothing is actually wrong. The local dealership can pull the diagnostic codes off the car and reset the lamp.
Where is the brake light switch located in a 2004 stratus?
Under the dash, near the top of the brake pedal arm.
The 2001 Infinity intake valve timing control position sensor is located on the back and of the head. The sensor should be labeled as such.
You need to start by having it checked for codes. Then you will know what to diagnose/fix.
What does it mean when the check engine light blinks rapidly in your 96 Chrysler Cirrus Lxi?
A fast flashing check engine light is an indication of a running issue that is causing severe emmisions and catalytic converter damage. The normal cause is a harsh misfire. If you have it checked for codes, it should tell you which cylinder is the problem.
Why would the check engine light come on a 2003 ford explorer sport trac?
Im guessing there is something wrong with your car!
I had the same problem but when i went to vw dealership my car completely die on me and my mechanic replaced COILPACK car was fine after that :)
The check engine light and battery light came on after you changed the starter?
i need to know if it is alright to drive this car like this Sounds like you left a wire loose, or blew a fuse. If the battery light is on, the alternator is not charging properly and it is not safe to drive.
How do you reset the engine light cavalier?
I take it you have a newer model cavalier. Which means you have an OBD-II computer. This type of computer stores the code until fixed. So if there is a preblem, then this fix will only be temporary...(STEP1) Disconnect battery for about 30 mins or even while you sleep at night. (STEP2) Reconnect battery...ENJOY!!!
There are many scanners that will turn off light. Chrysler drb scan tool ,snapon scanner. Needs to be turned off with tool. I think auto zone does free analysis.
How do you reset the check engine light on a 2001 Nissan Maxima?
No reset button. Easiest way is to disconnect the negative battery cable for a couple of minutes, then reconnect. This will erase any codes stored in the computer. If everything is okay, the check engine light will stay off.
I had that problem on the freeway outside of Boise in my '85 4000s. Turned out it was the distributor, which had shattered on the inside. Other than that, I'd check the EFG valve.
How do you replace the check engine light bulb in a 97 Plymouth Neon?
what you do is remove the instrument cluster (pop the cover and unscrew the cluster) put it on a bench face down then all you need to do is remove the clip holding the bulb in place.
How do you fix bank 1 and 2 if they are too lean and the codes and come up with P0171 and P0174?
I have tried everything, but I am coming to the conclusion that I have a bad pcv letting in too much air. The concensus of how to fix it seems to be to clean the MAF with some electical cleaner or brake cleaner. Basically, you are getting too much air into the throttle body after the MAF or a dirty MAF. both banks running lean indicates a vacuum leak....i had a similar problem with a customers vehicle and i found a vacuum leak at the rear of the intake manifold.....it was a cracked hose. _ caprice nut
