Hi All,
I hope someone can help me out.
I have a 1998 Jetta GT (2.0) with 76k km. The check engine light comes on periodically and then goes off after a few days. When sitting at a stop light or when the engine is at idle, the RPM's sometimes drop about 200RPM's and then go up to 1000RPM's and then settle down to where it should be. I had the computer scanned at the local garage and it came up with the fault code 16556 "Fuel Trim Bank 1 System Too Rich". The garage ended up checking the cap, rotor, plug wires and ended up changing the plugs (plugs needed to be done anyway) but it is still chugging at idle sometimes. Does anyone have any idea what the real reason for the fault code is??
As always, any help that can be provided would be greatly appreciated.
Please respond to group or directly to tevendaleATsympatico.ca (replace AT with @)
Thanks Tom