Engine will not start?

Tiny
LIMPPEACE29
  • MEMBER
Did as you recommended, still nothing.
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Thursday, September 24th, 2020 AT 6:20 PM (Merged)
Tiny
2CEXPT
  • MEMBER
Remove the ASD relay jumper B2 to B3 with a small wire-Turn ignition On-now check the injector dark green and black wire -do you have power?

BTW let me ask you again are you still getting spark?
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Thursday, September 24th, 2020 AT 6:20 PM (Merged)
Tiny
LIMPPEACE29
  • MEMBER
I tried exactly as you previously stated and still nothing. I am not getting any spark, haven't been.
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Thursday, September 24th, 2020 AT 6:20 PM (Merged)
Tiny
2CEXPT
  • MEMBER
No spark and injection pulses and all I've tried leads me to believe a computer problem.

Jumpering B2 to B3 will direct power to the injectors dark green and black wire. Its not happening.

Do this at the computer check pin outs A2 and A22 for power-key in on position-Do you have it? If so were right back to the camshaft and crankshaft sensors.
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Thursday, September 24th, 2020 AT 6:20 PM (Merged)
Tiny
LIMPPEACE29
  • MEMBER
Are you saying to check for power with a probe/test light? Also, we have tried replacing the computer with a supposed known good computer.
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Thursday, September 24th, 2020 AT 6:20 PM (Merged)
Tiny
2CEXPT
  • MEMBER
Okay remove the ASD relay get a jumper wire hook it on the dark green and black wire splice -in on the injector harness other end goes to the battery positive terminal-check injector for power. What were doing is bypassing the computer and the ASD relay-still don't have power at injector-wiring between the ASD relay and injectors is open-

How did you test the ASD relay other than substituting it
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Thursday, September 24th, 2020 AT 6:20 PM (Merged)
Tiny
LIMPPEACE29
  • MEMBER
I did as you said and bypassed the ASD relay. I used a wire to go directly from the positive battery terminal to the green/black wire of the plug for the ignition coil. The vehicle started right up then, both with and without the ASD relay plugged in. What does this tell me?
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Thursday, September 24th, 2020 AT 6:20 PM (Merged)
Tiny
2CEXPT
  • MEMBER
Your computer is defective
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Thursday, September 24th, 2020 AT 6:20 PM (Merged)
Tiny
LIMPPEACE29
  • MEMBER
Is that the only possibility? There's no chance of a bad a wire leading to the computer? I tried switching the computer with another computer that was supposed to work (before I bypassed the relay) and still nothing worked.
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Thursday, September 24th, 2020 AT 6:20 PM (Merged)
Tiny
MERLIN2021
  • EXPERT
Dont want to butt in but the first thing U need is any codes?
Using Digital Odometer (If Equipped) 1. Ensure battery is fully charged. Attempt to start engine. Turn ignition off. Without starting engine, turn ignition on, off, on, off and on within 5 seconds. 2. After a short pause, odometer reading is replaced by a 2-digit DTC. If more than one DTC is stored, after first DTC is displayed, there will be a short pause and then another stored DTC will be displayed. 3. DTC 55 will always be last DTC displayed. After DTC 55 is displayed, odometer returns to normal mode. Once all DTCs are recorded, retrieve DTCs using scan tool to ensure all DTCs are obtained. See USING SCAN TOOL. Page 1 of 1 TESTS W/CODES - 2.5L -1997 Jeep Wrangler SE 9/7/2008
On Chrysler products un plug the cam sensor, does it start? If yes it's a timing issue.
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Thursday, September 24th, 2020 AT 6:20 PM (Merged)

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