The '87 S10 (4 cylinder, manual) I just bought overall runs really well, the spark plugs looked great on it and it just passed smog with really low HC and CO (almost zero) numbers, a GM rebuilt engine was swapped in a couple years ago.
But I'm down to one last problem.
When the engine is totally warmed up (ie after a freeway trip) it wants to die at idle, you have keep goosing the throttle to keep it from stalling.
I already replaced the TPS, EGR valve, EGR solenoid valve, both temp sensors, plugs, cap and rotor and the MAP but it still has this stalling problem.
I also rebuilt the TB with new gaskets and regulator parts.
The IAC looked ok so I put it back in and I haven't changed the fuel injector.
Does the stop on the TB need adjusting after they have some miles on them?(I haven't adjusted that).
The distributor advance has been set to the factory spec with the ECM in diagnostic mode.
Before its been driven for a while but is pretty warmed up it idles ok but the idle strikes me as being a little low.
Any suggestions on what could be causing this problem?
But I'm down to one last problem.
When the engine is totally warmed up (ie after a freeway trip) it wants to die at idle, you have keep goosing the throttle to keep it from stalling.
I already replaced the TPS, EGR valve, EGR solenoid valve, both temp sensors, plugs, cap and rotor and the MAP but it still has this stalling problem.
I also rebuilt the TB with new gaskets and regulator parts.
The IAC looked ok so I put it back in and I haven't changed the fuel injector.
Does the stop on the TB need adjusting after they have some miles on them?(I haven't adjusted that).
The distributor advance has been set to the factory spec with the ECM in diagnostic mode.
Before its been driven for a while but is pretty warmed up it idles ok but the idle strikes me as being a little low.
Any suggestions on what could be causing this problem?
