READ THIS IF YOU HAVE A CHECK ENGINE LIGHT!
#1
READ THIS IF YOU HAVE A CHECK ENGINE LIGHT!
Go to Autozone and get your ECU scanned for the fault codes, record them, and post them in a new thread. This will eliminate the "I have a CEL and dont know why" type threads.
Good investments:
www.ross-tech.com(Vag Com diagnostic software)
http://stores.ebay.com/mechanic-doctorMD(Generic code reader)
Anyone can guess as to why you have a CEL, but you MUST have the fault codes retrieved from the ECU with a scan tool or laptop diagnostic software like Vag Com to pinpoint the cause or put you in the right direction. Any OBDII scan tool will work. TheOBD portis under the dash on the drivers side, and in some cases in the back seat ash tray.
ALSO!
If your CEL is flashing, that indicates a misfire. Get your ECU scanned. It should tell you which cylinder is misfiring. Take the coil pack from that cylinder and swap it with a different cylinder. Drive. Rescan for fault codes. If the misfire followed the coil pack you moved, you can be sure that its a bad coil pack.
If you have a 97-99 1.8t and the above method didnt resolve your issue, you likely have a bad ICM (ignition control module) or "ignition amplifier." Its located on top of the air box. They can be found on ebay for pretty cheap compared to what the dealer charges for the OEM bosch unit, and are equally, if not more reliable.
Those are the 2 most common causes for misfires.
Note: Cylinder #1 is closest to the radiator, and cylinder #4 is closest to the firewall. This should make finding cylinder's 2 and 3 self explanatory
Im not sure about the cyl. order on 2.8/3.0, etc. But Im sure its similar with 1 and 4 being the closest to the radiator.
Good investments:
www.ross-tech.com(Vag Com diagnostic software)
http://stores.ebay.com/mechanic-doctorMD(Generic code reader)
Anyone can guess as to why you have a CEL, but you MUST have the fault codes retrieved from the ECU with a scan tool or laptop diagnostic software like Vag Com to pinpoint the cause or put you in the right direction. Any OBDII scan tool will work. TheOBD portis under the dash on the drivers side, and in some cases in the back seat ash tray.
ALSO!
If your CEL is flashing, that indicates a misfire. Get your ECU scanned. It should tell you which cylinder is misfiring. Take the coil pack from that cylinder and swap it with a different cylinder. Drive. Rescan for fault codes. If the misfire followed the coil pack you moved, you can be sure that its a bad coil pack.
If you have a 97-99 1.8t and the above method didnt resolve your issue, you likely have a bad ICM (ignition control module) or "ignition amplifier." Its located on top of the air box. They can be found on ebay for pretty cheap compared to what the dealer charges for the OEM bosch unit, and are equally, if not more reliable.
Those are the 2 most common causes for misfires.
Note: Cylinder #1 is closest to the radiator, and cylinder #4 is closest to the firewall. This should make finding cylinder's 2 and 3 self explanatory
Im not sure about the cyl. order on 2.8/3.0, etc. But Im sure its similar with 1 and 4 being the closest to the radiator.
#5
Misfiring flashing check engine light
I would not suggest driving your car too far if you're check engine light is flashing because of a misfire. Your fuel will eat the hell out of your catalytic converter and your 100 ignition coil and whatever else you spend on coils will end up running you $4000 on a new cat. So watch it.
#6
I would not suggest driving your car too far if you're check engine light is flashing because of a misfire. Your fuel will eat the hell out of your catalytic converter and your 100 ignition coil and whatever else you spend on coils will end up running you $4000 on a new cat. So watch it.
#10
To reset it warning lights, just turn the ignition key until the all warning lights come on but do not start the engine. Then press a tiny button in the warning light display panel by poking a straightened metal paper clip through the hole. If you hold it steady for 10 seconds whilst keeping the ignition on, the warning light goes out. It will come on again when the service time period again expires.
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AC DELCO START AND IGNITION SWITCH -- Features premium quality components; Engineered to high standards to assure dependability; Tested under extreme conditions; Constructed with no substandard cores
__________________________________________________ _________________
AC DELCO START AND IGNITION SWITCH -- Features premium quality components; Engineered to high standards to assure dependability; Tested under extreme conditions; Constructed with no substandard cores