Random stalling

terryjm1

Well-known member
Jan 23, 2011
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388
Well, just when you think all is well...

On the 96 D1 I have been driving for about 3000 miles since installing an engine and doing a whole lot more work, it has randomly stalled 3 times in 3 days, It starts right back up, though. We have had a lot of rain and I have been driving in it.

It seems to me to be less likely to be a fueling issue as it starts right back up and it has a new fuel pump. When it has stalled in gear (5-speed) the forward movement results in it only experiencing a short loss of power, sort of pop starting itself.

I know there are a lot of things that can cause this but… any suggestions?
 

best4x4

Well-known member
Mar 1, 2015
598
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Beaumont, TX
When it stalls, is it at a light or moving slowly in traffic? IAC not keeping up? Sure it's happening so quickly it's not setting any fault codes.
 
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discostew

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Sep 14, 2010
7,748
1,027
Northern Illinois
I would be looking at the crank sensor. On D1 look at the wires. The insulation breaks down from oil saturation over 26 yrs.
Also make sure you haven’t trapped a harness under the ign. Coils bracket.
 
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terryjm1

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Jan 23, 2011
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It happened once idling in the driveway. Once going about 40mph and once at about 20mph.
 

terryjm1

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Jan 23, 2011
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I was hesitant about using the crank sensor as the engine was a flood recovery. There was a fair amount of rust on the sensor ring. i used a different flywheel but kept the crank sensor. When I get another one off the lift I will swap in another sensor. I have one somewhere in the mess.
 

terryjm1

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Jan 23, 2011
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I will check/fix the wires before I swap in a sensor. Thanks to all for suggesting this. I just installed a y-pipe on this one. I could have bumped into the wires and pushed them over the edge.
 

4Runner

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May 24, 2007
677
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Boise Idaho
If it’s not that, have you looked at water intrusion in your ECU. That had me chasing my tail for a while back when I had my 96. Maybe try moving various wires and harness around while it’s running to see if you can recreate it. Good luck.
 
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terryjm1

Well-known member
Jan 23, 2011
1,509
388
If it’s not that, have you looked at water intrusion in your ECU. That had me chasing my tail for a while back when I had my 96. Maybe try moving various wires and harness around while it’s running to see if you can recreate it. Good luck.
I had considered that. i am wondering if water is a problem either there or maybe the wires to the crank sensor getting a bit wet. It hasn’t happened since I made this post and it also hasn’t rained.