|
slow rpm drop in neutral and bad gas mileage
I have an 03 Boxster S.
I'm still trying to figure out what's wrong with my car, I had a bad idle which is almost completely gone after cleaning my throttle body, but sometimes the idle will fluctuate a little.
Lately, I've notice my gas mileage around town to be 5 lower than it usually is with the same type of driving. I'm getting 14-15 when I use to get about 18-19. The highway miles I'm still getting 26 -27. My car threw a P0171 code last week after I cleaned thr throttle body, I cleared it and it hasn't come back since.
When my car is in neutral, and i step on the gas, it seems like the car is taking longer than usual to drop back down to 800rpm.
Thoughts?
Last edited by ohhh my; 09-22-2012 at 01:19 PM.
|
Threaded Mode
