I've got an 89 Comanche that I've been fighting for a few months that I've run out of ideas for. When it was running, every few months it would decide it needed to be cranked 10-12 times before it would stay running. A couple months ago it decided that it would no longer run at all. I've changed out several parts and followed Cruiser's tips on ground refreshing without any luck. The only way i can get it to run at all is with the vacuum line to the MAP unplugged. The truck will idle in that state, but giving it anything more than the slightest gas will cause it to stall out. I'm running out of ammunition for my parts cannon and I'm hoping someone here can get me headed in the right direction.
List of replaced parts:
IAC
Fuel Pump
Fuel Regulator
Fuel Pump Ballast Resistor
CPS
ECU
Map Sensor
EGR Solenoid
EGR valve