olowe29

just got a 90 turbo with a new rebuilt motor and rebuilt turbo. The car runs great when its warm, but has problems idling. it won't stay on without putting your foot on the gas when I first start it, and dies out when I
come to a stop for a few minutes after I start driving.
I have searched the forums for a answer but have come up with nothing. Thing tried= The tps was set with a multimeter ( no change), adjusted the bac using the fsm( had no effect on the idle at all) the only thing I have not done is check for vac leaks (that going to happen friday)

If anyone can give any advice please do
and thanks in advance

Kuhrazy7

yea i wud say vacuum leaks, my friend had a problem with his stock bov and something related to pluging it up, and it was idling like ****

rxse7en

Definitely pull that turbo inlet duct off and check it out for vacuum leaks. Been there, done that!

Cosmo Donk

Make sure the TPS is good and set right. I know you said you set it but just check it for spikes and then set it again with it warm

SureShot

Probably a vac leak.
If not, clean or replace the main grounds.
If they are not perfect, the ECU goes nuts.

Barwick

a vacuum leak would cause a higher idle (usually).

On the upper intake manifold, if you stand on the passenger side and face the engine, there's a little piece that's got a screw adjuster, you can use that to adjust your idle up or down.

AreExSeven

Did you happen to do the throttle body mod when you installed your new engine?