off idle, clutch disengage buck

SwampAss

Member
:
2007 Mazdaspeed3
It's as if the throttle closes as I am letting out the clutch in first. sometimes, at low RPM <2000 it will buck. once I'm off and driving it's fine. Doesn't seem to do it in any other gear. No CELs, no codes. It started about a month ago but did it 3 times this evening. Once the car is warm, doesn't seem to do it.

Stuff to check?
 
Check for boost / air leaks. Don't you have a standback? I If so, does it splice in or use a harness? If spliced, check those. Zero it off as well. If not, remove it anyway just to be sure.
 
does it do anything if your just idling and press, and release the clutch if so its possibly the throw out bearing going bad.

BTW fugazi rules
 
I have removed my standback and am soldering all of the connections. (I have a PNP harness)


I'm going to drive home standback free and see if it still does it.
 

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