I recently purchased a 2000 jetta 2.0 with the same issue only its not going away (misfire codes) sputtering, engine bouncing around, I found a Coil Pack online for $40. I will be replacing it in a week when it comes in and I will report back with the outcome.
@acethakr The codes were "P0134" ("P1128" Bank 1 system too lean) "P0300" "P0304" "P0303. I installed the new Coil Pack today. The car started a little better, but it still looks and sounds the same, an obvious misfire issue, or so I think knowing not too much about cars, but I am talking to two different techs and reading up on the issue. I guess now I will change all the spark plug wires, plugs, and change the oil a few times to flush the system incase theres somthing clogged.
@acethakr I replaced the Coil pack, plugs and wires, - still same issue. The timing belt looked a little loose, it slipped a tooth. Had the timing belt replaced, and water pump while I was at it. No more random misfires, only in C1. Low compression in C1. I think the valve is bent from driving it with the timing messed up. I will update once I figure it out.
Having the same issue with our 2002 2.0L Jetta. MIL light goes on during or after rain when the car is cold. It never happens when the engine is warm.
Changed the MAF to no avail. It is the coil pack, most likely. Next time it happens, put your car in the garage (or a dark place), take a spray bottle with salt water and spray onto the coil pack with engine running. If you see loose sparks, you found the culprit. I'm ordering a new coil pack, even without recent misfires. Also, try OBDII reader!
@jerrykrecek I have an Elm 327 Bluetooth OBD reader but it doesn't give any more information than the standard p030_ misfire codes. I still have the problem intermittently but given the cost of the coil pack I'm not going to replace it just yet.
@stelthblend It hasn't happened recently even in the rain so I'm not sure. I believe it's related to the ignition coil but am not going to bother replacing that until it happens again.
I recently purchased a 2000 jetta 2.0 with the same issue only its not going away (misfire codes) sputtering, engine bouncing around, I found a Coil Pack online for $40. I will be replacing it in a week when it comes in and I will report back with the outcome.
acethakr 1 month ago
@acethakr The codes were "P0134" ("P1128" Bank 1 system too lean) "P0300" "P0304" "P0303. I installed the new Coil Pack today. The car started a little better, but it still looks and sounds the same, an obvious misfire issue, or so I think knowing not too much about cars, but I am talking to two different techs and reading up on the issue. I guess now I will change all the spark plug wires, plugs, and change the oil a few times to flush the system incase theres somthing clogged.
acethakr 3 weeks ago
@acethakr I replaced the Coil pack, plugs and wires, - still same issue. The timing belt looked a little loose, it slipped a tooth. Had the timing belt replaced, and water pump while I was at it. No more random misfires, only in C1. Low compression in C1. I think the valve is bent from driving it with the timing messed up. I will update once I figure it out.
acethakr 1 week ago
Having the same issue with our 2002 2.0L Jetta. MIL light goes on during or after rain when the car is cold. It never happens when the engine is warm.
Changed the MAF to no avail. It is the coil pack, most likely. Next time it happens, put your car in the garage (or a dark place), take a spray bottle with salt water and spray onto the coil pack with engine running. If you see loose sparks, you found the culprit. I'm ordering a new coil pack, even without recent misfires. Also, try OBDII reader!
jerrykrecek 1 month ago
@jerrykrecek I have an Elm 327 Bluetooth OBD reader but it doesn't give any more information than the standard p030_ misfire codes. I still have the problem intermittently but given the cost of the coil pack I'm not going to replace it just yet.
JosephWDougherty 1 month ago
You ever figure out the issue?
stelthblend 3 months ago
@stelthblend It hasn't happened recently even in the rain so I'm not sure. I believe it's related to the ignition coil but am not going to bother replacing that until it happens again.
JosephWDougherty 3 months ago
@JosephWDougherty You think it had anything to do with your intake?
stelthblend 3 months ago