OK
The car has just started doing this after a clean 50K. While driving around, the engine's warmed up, I put in the clutch and the revs will seek out 1500 rpms, hang there for one...two...three seconds and then fall down to a stable idle. Every time I stop it will do this, if the revs are lower than 1500 when the clutch goes in it will jump up to 1500 and hang there for few seconds...and vice versa. Strange??
I should mention I've done the TH fix, have no CEL triggered, recently optimized TB and installed Diablo Chip but reset computer after both.
Any suggestions?
