Throttle problem when warmed up - yes another one
I'm new to the forum but have been reading a lot about 147 throttle problems. I too have a problem but seems a little different to others....
After the car has warmed up - mostly after 15-20 minutes in stop start traffic the throttle seems to have a delay - this is most noticeable when shifting up the gears, as if the throttle body does not recognise my foot coming off the accelerator pedal as I shift. Timing is about a half a second before the revs drop again. I have:
Cleaned the throttle body internals with spray cleaner, the butterfly was actuated with the accelerator pedal and appeared normal at the time.
Did the disconnect the battery ECU reset along with a TPS reset.
Took off the two ECU connectors and cleaned them with contact cleaner.
Did the same for the MAF connector.
Took the car out and trashed the living bejesus out of it (great fun)
I didn't notice the problem but the next day it was back after the usual 15-20 minute run to work.
Idle is fine, throttle response (apart from the above) is fine, no misfiring or carrying on at all.
I don't have a cable to check the ECU for error codes yet.
As the problem seems to be coming in after the engine has heated up I'm thinking the problem is the throttle body. Do the servos get lazy after a while? I have read where some people have opened up the throttle body and cleaned the contacts but I can't find much detail on how to do this. I assume I lever off the black plastic cover on the side of the TB - is this correct? I am also challenged in contorting myself into the footwell to do any work on the accelerator pedal - I couldn't track the pedal connectors down to clean those ones.
Any help would be greatly appreciated.
Last edited by banshee777; 06-08-14 at 04:49.