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Discussion Starter · #1 ·
We have a mis-fire condition with cylinder 3. Under light throttle (cruising) the 1.8t purrs as it should. As soon as you try accelerate or pull a hill you get a mis-fire and loss of power. Only code in the computer was P0303.

I'm thinking the mis-fire under load "only" is an indication of fuel starvation (bad fuel injector or fuel injector wiring) on cylinder #3.

Other ideas?
 

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Discussion Starter · #3 · (Edited)
Fuel is not likely, ignition is most likely.
Ensure you have the correct NGK plugs in good condition.
Try swapping #3 coil-pack with one of the others and see if the code follows.
If cylinder #3 was getting fuel and no spark, I would expect the plug tip to be wet. Not the case. Dry tip. Your suggestion for swapping coils is worth a try though. Thanks!
 
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