99 4.0 in 89 wrangler. You can start it and it will run for 3 secs and then die. Sounds like it is running out of fuel. Inline fuel pump, 55 lbs. can squirt fuel in throttle body and keep it running. fuel pump works like it should. replaced iac and temp, still no help. Why is this happening.
Did find out the injectors were shutting down when motor quit but ing was still on. Thats why I could keep it running with extra fuel. ASD relay has 12 volts all times one wire. When key is on it has 12volts to two other wires and 8 volts to the other one. Still haven't fixed yet.
Thanks guys. Will try a few things today and get my data link hooked up. Will check back tonight. Thanks again.
When it finally locks you completely out and won't even let the starter turn over, then you will know the SKIM has been activated and you'll have to have it reset. Also, look for a light on the dash that looks like a key with a circle and slash around it that it lit up.
If you read the earler post I installed this 4.0 out of 99 to an 89 wrangler. You were right, anti theft was sutting down injectors after 3 secs. Chysler can't flash the pcm without the jeep. Well this jeep only has the fuel injection harness. I wired the 99 steering wheel up next to my jeep with the key. Got it running real nice. Going to take anti theft module and key out of steering wheel, tape it up and stuff it under dash of 89 till I can get another pcm. Thanks again for all your help. Couldn't have done it without you all. This is pretty darn good site. Thanks.