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1992 Saturn SL2 No start

Tiny
SHADYC00
  • MEMBER
  • 1992 SATURN SL2
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 161,000 MILES
Hi there. Problem is car shut off while driving. Has good spark, has fuel to the rail but injectors wont fire. Changed many sensors but no help. Fuel pressure is good and holds steady. All fuses and relay's appear to be working properly. Change PCM?
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Tuesday, July 14th, 2009 AT 2:41 PM

12 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Hi
Have you checked the 7.5 A fuse in underhood box labled INJ?
Let me know
Thanks for donate
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Tuesday, July 14th, 2009 AT 2:59 PM
Tiny
SHADYC00
  • MEMBER
  • 6 POSTS
Yes as I stated all fuses and relays seem to be functioning normally> there is power on both sides of the fuse with key on. Extremely frustrated with this problem. PCMs are hard to get used and new. Found one on ebay for my vin. Hate to buy it and plug it in and stiil have a problem.I
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Tuesday, July 14th, 2009 AT 3:17 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Is there power to injectors? If yes PCM provides ground to operate inj. What sensors have been replaced?
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Tuesday, July 14th, 2009 AT 3:21 PM
Tiny
SHADYC00
  • MEMBER
  • 6 POSTS
Yes the test light indicates power to each injector. Sensors changed. Map, coolant temp. Egr solenoid, crank position. When you spray fuel in the inlet it fires right over.
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Tuesday, July 14th, 2009 AT 3:38 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Have you checked for Diagnostic Trouble Codes?
Seems you have covered all the bases I can't think of anything else but PCM.
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Tuesday, July 14th, 2009 AT 3:59 PM
Tiny
SHADYC00
  • MEMBER
  • 6 POSTS
Yes codes were 26, 32, 45 but none of those should not keep the car running.
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Tuesday, July 14th, 2009 AT 4:11 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
No your right but the codes point to a faulty PCM 26 Quad driver in PCM is open and couple that with 32 no signal from PCM to EGR solenoid and that indicates PCM failure. So if wiring is good from PCM to injectors I don't see any other way than aPCM.
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Tuesday, July 14th, 2009 AT 4:42 PM
Tiny
SHADYC00
  • MEMBER
  • 6 POSTS
I will go with the pcm. Thank you very much for the input. I will let you know if this doesn't work.
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Tuesday, July 14th, 2009 AT 5:16 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Crossing fingers
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Wednesday, July 15th, 2009 AT 1:44 PM
Tiny
SHADYC00
  • MEMBER
  • 6 POSTS
PCM no help! Looking for wire issue. What about canister purge solenoid? Its on the same quad driver as the egr solenoid. Could that be bad? Cant find it at parts store. Dealer part only?
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Saturday, July 18th, 2009 AT 10:53 AM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
After rereading your posts I don't see a fuel pressure reading. Have you checked pressure? 41 - 47 psi
Also what Litter size is engine?
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Sunday, July 19th, 2009 AT 1:31 PM
Tiny
AKDALE
  • MEMBER
  • 1 POST
If the ecm is in need of repar, I am seeing a similar issue only my car runs but latches the 26 code, try these guys

https://www.2carpros.com/articles/mitchell1eautorepair-car-repair-manuals

Keep posting and I will to on what I find with mine
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Tuesday, July 28th, 2009 AT 3:52 PM

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