I have been getting a chk engine light over the past few weeks. I take it to the dealer and they get a sporadic code - Too Rich at Idle. They state that it Maybe my K&N filter, but b/c I have had it on for 25k miles I really doubt it. Could it be that the K&N may need a cleaning. The dealer also stated that they are going to try some fuel injector cleaner. I do not know what that is gonna help, 25k mile on an 00' GTI that has never seen below a 92 octane and gets regular store bought fuel injector cleaners. Can anyone else help me, what else might this be. I immediately thought MAF, but the dealer did not think that was the problem.
J
J