i've done some research and its due to the maf ( so i whacked it hard ) and poured in some fuel injector cleaner to a new tank of gas and that seemed to do the trick so far... and lastly...an appointment to adjust valve clearances with honda next week. anybody have experience with this rough idle experience and fix? also, anybody who's done valve clearancing and have anything to say about it? the car shudders pretty bad sometimes and rpm drops REALLI low..but havent stalled yet...ne info would be appreciated, the car has 79000km btw...thanks

 

going through similar issues in my '00 AP1. Let me know if the valve clearances did the trick, I'm going to autozone to purchase some FI cleaner and other goodies. Was your rough idle cyclical? did it shudder for about one or two seconds, and then run smooth for the next? Bump.

 

i have a 2005 with 13,300 miles. Mine only idles a lil rough when i give some gas(the revs go up when i give her gas then it drop a bit just a bit at the rpm it idles at) and runs smoothly just wonering if i need FI cleaner or its normal for the S.