The CzAR

iTrader: (16)

I just purchased another RX7, an 88 TII this time. Roughly 5k on engine and turbo, taken good care of. One problem I have noticed is that when the engine is cold, upon starting up it will idle extremely low (to the point of stalling.) To combat this I give it a little throttle until the engine warms up and it is fine. I dont think the idle adjustment screw is the answer because once it gets warmed up it idles great at 750, although every once in a while it will bounce up to 1000-1200 rpm then back down to 750, usually 3 times in quick succession (but I guess I'll save that one for another post.)
Any ideas what could be causing this, or how to fix it would be great.

eddierotary

iTrader: (7)

mine does the same thing after i put my turbo II engine. but mine doesnt bunce because i adjusted the TPS. but it doesnt idle all that great when cold but once warm up, actually when the oil warm up it idle fine

The CzAR

iTrader: (16)

no ideas anyone?

emac

vac leak, tps, cold start cam, bac

The CzAR

iTrader: (16)

Adjusted the TPS, 1k ohm closed, 5k ohm at wide open throttle. still no solution. im going to clean and test the bac next.