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  #16  
Old March 4th, 2017, 13:18
cletus141 cletus141 is offline
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Re: Jeep stolen and recovered, now won't start

Holding pressure at 36psi. Gonna check for spark
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  #17  
Old March 4th, 2017, 14:04
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Green Mesa XJ Green Mesa XJ is offline
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Jeep stolen and recovered, now won't start

Was your cps sensor still in place?


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  #18  
Old March 4th, 2017, 14:15
cletus141 cletus141 is offline
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Re: Jeep stolen and recovered, now won't start

I didn't check for the actual CPS sensor, but the pigtail was plugged in near the fuel rail. I wouldn't think that they'd cut the wires.

There is no spark. Just watched a youtube vid about unplugging it for 5 minutes and trying again. That was for an '89, but worth a shot while I dick around online looking for solutions
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  #19  
Old March 4th, 2017, 15:49
cletus141 cletus141 is offline
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Re: Jeep stolen and recovered, now won't start

I started a new thread, but in case anyone comes back in here, here's the latest update:

I'm baffled. Fuel pressure holds at about 32psi, but will slowly bleed down to about 28 after 5 mins. I checked spark to all 6 cylinders and it's there. I originally checked 1 cylinder and wasn't getting spark, then read something about unplugging the CPS for 5 minutes, re-plugging, and trying again. Now spark to all 6. So maybe I didn't check it correctly the first time.

Timing issue?
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  #20  
Old March 4th, 2017, 16:06
cletus141 cletus141 is offline
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Re: Jeep stolen and recovered, now won't start

I also tried spraying starting fluid into the intake and nothing
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  #21  
Old March 4th, 2017, 16:35
cletus141 cletus141 is offline
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Re: Jeep stolen and recovered, now won't start

UPDATE:
I read somewhere that it might be flooded, so I cranked and cranked at WOT and it eventually started. Made sense since I was cranking all morning checking fuel pressure and for spark.

My concern now is that I didn't see spark initially, unplugged the CPS for 5+ minutes, re-plugged it and then got spark. It's possible I didn't check correctly at first, and I only checked 1 cylinder. But if it was replugging the CPS that worked, could that mean that it is going out? Did it reset something in the PCM?
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  #22  
Old March 4th, 2017, 16:48
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Green Mesa XJ Green Mesa XJ is offline
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Jeep stolen and recovered, now won't start

Probably means the cps is about to go. I was wondering if the injectors were pulsing correctly but if it's running they should be ok.

Does it start normally now? If it only starts WOT I think something like the TPS is failing. I forget how it ties in to the system and why it causes no start


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  #23  
Old March 4th, 2017, 16:56
cletus141 cletus141 is offline
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Re: Jeep stolen and recovered, now won't start

after letting it run for a minute, it starts normally now. Is there a better brand of CPS? I've read that OEM is no longer available. Locally, I can get Napa, BWD, MasterPro. Summit can get me Standard Motor Products, or Crown Automotive.
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  #24  
Old March 4th, 2017, 17:00
cletus141 cletus141 is offline
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Re: Jeep stolen and recovered, now won't start

...looks like Dorman, Duralast
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  #25  
Old March 4th, 2017, 17:01
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Green Mesa XJ Green Mesa XJ is offline
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Jeep stolen and recovered, now won't start

I think for the 91 it is still a available from the dealer.
I'd go for napa if it's not jeep. Not sure about the other aftermarket brands, crown is supposed to be good quality but I've had hit and mis from them and omix-ada


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Last edited by Green Mesa XJ; March 4th, 2017 at 17:13.
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  #26  
Old March 4th, 2017, 17:13
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Green Mesa XJ Green Mesa XJ is offline
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Jeep stolen and recovered, now won't start

Ah, looks like I may be wrong on mopar availability.
I'd avoid duralast and whatever brand O'Reillys sells I heard of both those failing out of the box.




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