Ideas on S-10 troubles

[Maximum Overdrive]

Originally posted by apstguy
Isn't the EGR valve contolled by vacuum? Just replace the sensor it is hooked up to -- if not & computer controlled, replace the Idle Air Control (IAC) valve and see if it helps. Engine coolant sensor maybe???

EGR solonoid tested good. (I'm cheap and will not pay the $85.00 for the new EGR solonoid just to replace even though it tests good) Idle Air Valve, TPS and MAP sensor was replaced less than 2 months ago. Will look at coolant sensor again though.