1992 Jeep Cherokee random stalling and running rough, weird codes
Hey everyone, I have an odd issue with my 92 111,000 mile Cherokee. Mostly but not exclusively when the motor's warm, it'll idle fairly fine but randomly stall. When going down the road it accelerates well and maintains speed though it bucks and sputters and seems to restart off the transmission. The CPS has been replaced as has all the wires, cap and rotor, ignition coil, and computer. I get a code 27, injector system issue so I tried pulling each injector at a time with it running and the engine stumbled each time so no one injector is at fault for the miss. I tested the hot leads to the injectors with the engine block with the engine off and key on and only got 6.2 volts each. I then tested the ground wires against the block and got about .2 volts each. Any ideas? I think the refurb PCM may have a system short though those hot wire voltages are awfully low... Thanks!