3800 Series 1 random stalling

b4black

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I'm hoping you all can help with a random stalling issue on a 1992 Series 1 3800 (L27). Yesterday the car stalled four times . It restarted each time.

The last time I was driving:

  • Cruising about 45 mph, straight, no bumps in the road.
  • It just stopped running - no chugging, no surging, just died.
  • I had a fuel pressure gauge hooked up. Pressure was fine before and after the stall (~45 psi).
  • Had a vacuum gauge hooked up - looked fine until the stall
  • 16 in Hg of vacuum at idle. All hoses look good. Sprayed carb cleaner all over - no changes in RPM.
  • 1992 engine does not use EGR.
  • Catalytic converter is not plugged
  • Wiggled key & ignition switch, seems OK.
  • Recent plugs, wires and upgrade to Type 2 coils/module (used from L67 motor)
  • Connected a scan tool. TPS, O2, MAF all look OK.
I fear I have a dreaded "intermittent electrical issue". :picard: Hopefully someone has some suggestions. Thanks.
 

Bub

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fuck, this is going to bother me I had this on my wife's old regal, I'm going to look back in my records and see what the hell I replaced. but your describing exactly what I had.

EDIT: IIRC it was the crank sensor
 

b4black

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I was kinda was thinking crank sensor too. Found a good video, rented the puller and popped a new one on last night. Fingers crossed.

Thanks
 

bikrboy128

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make sure to check the wiring to the crank sensor while you're in there.
 

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