Touareg: 2004 V6
Join Date: Aug 2012
Second Vehicle: Still looking
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04/V6 Ignition coil connector short along with other problems...
Hey all, got a weird one. But then again, it's a Touareg, so of course it is.
Started it up today, and it ran like absolute garbage. Figured it was an ignition coil as that has been an ongoing issue, but this was worse than the normal rough running ignition coil failing or malfunctioning.
Anyhow, popped the hood and saw that the #6 ignition coil connector was completely fried - melted and shorted out. Luckily I had a spare coil and went to the parts store and got a new coil connector and wired it in. It made a slight improvement but is still running terribly.
Throwing the following codes after replacing that coil and the connecting boot:
16660 - Fuel Injector #6 (N84): Short to Ground
P0276 - 002 - Lower Limit Exceeded
16657 - Fuel Injector #5 (N83): Short to Ground
P0273 - 002 - Lower Limit Exceeded
16654 - Fuel Injector #4 (N33): Short to Ground
P0270 - 002 - Lower Limit Exceeded
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 001 - Upper Limit Exceeded
16689 - Cylinder 5: Misfire Detected
P0305 - 001 - Upper Limit Exceeded
16688 - Cylinder 4: Misfire Detected
P0304 - 001 - Upper Limit Exceeded
16690 - Cylinder 6: Misfire Detected
P0306 - 001 - Upper Limit Exceeded
Historically when I get a misfire it has been a bad coil but something is going on I don't understand with the fuel injectors. But it has to somehow be related to that shorted out coil connector. (I assume!)
Car will start, is making very odd thumping/rumbling noise. Will eventually rev up and sort of smooth out, but will barely drive to move around the driveway/in and out of the garage.
Any trouble shooting ideas on this one are very welcome!