Troubleshooting stalling
Thread Starter
Advanced
Joined: Aug 2003
Posts: 57
Likes: 1
From: Boynton Beach FL
Troubleshooting stalling
My 93, stock except for electric wp, stalls and is very hard to restart. Shows no codes. Seat of the pants feeling of no fuel. When it finally restarts, 15 to 30 seconds of cranking, it has a flooded carb smell. Of course it has no carb. Looking for some tips on where to start troubleshooting. Has 125,000 miles. All help appreciated.
Drifting
Joined: Jun 2010
Posts: 1,853
Likes: 8
From: Westerly RI
Step one for a no-start condition is to spray a small sniff of ether into the intake while cranking. If it starts, or tries, you have a fuel delivery problem. If no response, check for spark by grounding a plug wire while cranking (or use an induction-type timing light). The results of these two checks will determine your next steps.
Drifting
Joined: Jun 2010
Posts: 1,853
Likes: 8
From: Westerly RI
You're likely right about the Opti. I only started with the basics, because there could be a raw-fuel smell but no fuel in the cyls, e.g. an underhood leak resulting in lack of pressure. (Of course, you would likely see something like that.)
Thread Starter
Advanced
Joined: Aug 2003
Posts: 57
Likes: 1
From: Boynton Beach FL
Change wp out about 20000 ago. Opti never got wet. The no code is what has me baffled. Shouldn't a bad/intermittent opti throw some kind of code?
Safety Car
Joined: Sep 2010
Posts: 3,752
Likes: 190
From: Indiana PA
Step one for a no-start condition is to spray a small sniff of ether into the intake while cranking. If it starts, or tries, you have a fuel delivery problem. If no response, check for spark by grounding a plug wire while cranking (or use an induction-type timing light). The results of these two checks will determine your next steps.
To OP: start with the basics, verify fuel pressure with a gauge, verify spark.
How old is the fuel? Did this start recently after a fill up?
Does it stall warm, on cold start up, when as you did not specify?
FYI, it takes a LOT of a OBD-1 system to throw a code, it either works or it doesn't for the most part with OBD-1. No logic in the system unlike OBD-II to a certain extent.
