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Chris
Chris, Shop Foreman
Category: Jeep
Satisfied Customers: 3170
Experience:  Jeep Certified Master Tech
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92 yj 4.0. No start. when it does start it only runs minutes

Customer Question

92 yj 4.0. No start. when it does start it only runs for 5 minutes and then dies. No power to coil pos. It has fuel pressure. good start rpm. new ckp and dist. pu coil installed
Submitted: 1 year ago.
Category: Jeep
Expert:  Amedee replied 1 year ago.

Hello and welcome! My name is ***** ***** I can assist you with your question. When the engine stalls and does not start, does the TPS have 5 volts with the key on coming from the ECM?

Customer: replied 1 year ago.
4.9 volts on pin 22 and 6
Expert:  Amedee replied 1 year ago.

Is the ECM grounding the ASD relay when cranking?

Customer: replied 1 year ago.
Not that I can see
Expert:  Amedee replied 1 year ago.

Hello and sorry for the delay! I had to step out for a bit. How did you check this and what were the results/readings?