Bear with me. 96 stock KA cranks but no start

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VegasNow
Posts: 2
Joined: Wed Sep 28, 2016 3:14 pm
Car: 96

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Let me just get into it as this will be my first post.

Driving to work and about a mile from work (30 miles driven already) the car just BOGS!! Hard. Push in the clutch, it dies. Let out the clutch, car starts but as soon as I push the accel, bogs again. As i slow into the turn (car currently running kinda) it roars back to life as if nothing happen, hit the accel and it goes for a bit then bogs out again. Clutch in, car dies, restarts with the key but bogs instantlly and never recovers. Towed home.

Fuel pump replaced while car was at work, didnt work. Hence car had to be towed home. Oh this is with over 3/4 a tank of fuel.
Things I've checked
-timing on distributor
- fuel pressure
-spark yes i have it
-every cyc compression 140's all 4
- regapped the plugs to .044 (was at .036)
- cleaned the MAF (brand new but meh did it anyway)
- injector resistance all at 11.0-11.3
- NOID checked injector pulse, nice and strong light
- battery voltage normal, i have an additional pack attached when cranking
- hoses all checked and replaced ones that needed it (replaced the raditator about a month ago due to a leak below the intake)
- vacuum check good, goes with above
- only code i have is for the IACV. and the stupid N/park switch (it a manual, i know)
- replaced coolant temp sensor too

PS. O2 sensor can only be tested correctly if warm, since car wont start, cant do a proper test. Second this wouldn't keep it from starting. And a dirty IACV will not prevent it from starting either.

Hope there is something I'm missing. Please help and thanks!!
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PapaSmurf2k3
Site Admin
Posts: 18997
Joined: Thu Nov 21, 2002 3:20 pm
Car: 2017 Corvette, 2018 Focus ST, 1993 240sx truck KA Turbo.
Location: Merrimack, NH

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Interesting. I'd say try pulling the fuel pump fuse after the no-start condition and cranking for a while to see if it starts briefly. Does it smell like fuel?

VegasNow
Posts: 2
Joined: Wed Sep 28, 2016 3:14 pm
Car: 96

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Oh year theres a fuel smell. Like it might be a rich start, but its Vegas so still kinda warm. Saw a post somewhere that said the only way it started was with the accel pressed (more air just to get it to fire). I do have an extra ECU but its from a 95 atuo. Going to try that tommorrow.

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centralcoaster33
Posts: 2634
Joined: Tue Apr 05, 2005 10:41 am
Car: 1997 Nissan 240SX #5
Location: Central Coast, CA

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Manual transmissions have a neutral position switch but not park, so I'm not sure about that code. Bog when on throttle tells me something is up with the TPS or MAF, so the AFR is incorrect. Bad O2 sensor seems like it wouldn't matter until warm up cycle is completed.

I guess you either did as directed by PapaSmurf2k3 and smelled fuel, or you just happen to smell fuel but ignored pulling the fuse.

What's the status?


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