- Joined
- Jun 26, 2002
- Location
- Apache Junction, AZ
LH2.2, 745Turbo 1988.
Problem is the car will stall at random (much more so once hot). When Cool (100deg out here in AZ) it ran for around 4-5 miles without any issues, no stall or random hiccup or bump. After that point once warm it starts to just drop out RPM at random, sometimes it will restart right away first time, othertimes it will crank and crank and restart when it wants to.
We have tested 4 different Powerstages and they all seem to act the same way.
We have reflowed the FP relay as it had some cracked joints, swapped out the intank pump as the stock one would not power up when jumped, the 850R pump that we installed now powers up along with the main pump when you jump it. With the relay it also powers up now.
We have tried 3 different AMM's with the same result.
The Hall sensor in the distributor looks fairly new, and has a reman bosch sticker on the cap. On the inside we found there to be some odd pieces of black plastic loose inside of it, we removed those and the issue was the same. Since then we also took another Hall Sensor Distributor off a local 780 that had last run without any issues. This unit acted 100% the same as the one that came off the car.
We had to cut to splice in a new connector for the Hall sensor wiring, I crimped it the first time but after more issues we figured why not and solderd them so they should have a good connection now one would hope.
We also tested their ignition coil out and it tests out to spec with around 1ohm betweene 1 and 15 (spec is 1.2+/-.2), and between 1 and the main it reads 9k (spec is 9000 +/- 800).
Car has new plugs and cap and rotor along with bosch wires.
Did a cold (100deg outside) compression test and it came out to 120-110-150-150.
When the car runs it runs good, but besides that it has this random RPM drop out and stall that we can not figure out.
Any other ideas on what to test besides throwing more $ in new parts at it?
I might have a spare fuel ECU here but besides that nothing.
Trying to get these guys going so they can make it back to Texas.
Problem is the car will stall at random (much more so once hot). When Cool (100deg out here in AZ) it ran for around 4-5 miles without any issues, no stall or random hiccup or bump. After that point once warm it starts to just drop out RPM at random, sometimes it will restart right away first time, othertimes it will crank and crank and restart when it wants to.
We have tested 4 different Powerstages and they all seem to act the same way.
We have reflowed the FP relay as it had some cracked joints, swapped out the intank pump as the stock one would not power up when jumped, the 850R pump that we installed now powers up along with the main pump when you jump it. With the relay it also powers up now.
We have tried 3 different AMM's with the same result.
The Hall sensor in the distributor looks fairly new, and has a reman bosch sticker on the cap. On the inside we found there to be some odd pieces of black plastic loose inside of it, we removed those and the issue was the same. Since then we also took another Hall Sensor Distributor off a local 780 that had last run without any issues. This unit acted 100% the same as the one that came off the car.
We had to cut to splice in a new connector for the Hall sensor wiring, I crimped it the first time but after more issues we figured why not and solderd them so they should have a good connection now one would hope.
We also tested their ignition coil out and it tests out to spec with around 1ohm betweene 1 and 15 (spec is 1.2+/-.2), and between 1 and the main it reads 9k (spec is 9000 +/- 800).
Car has new plugs and cap and rotor along with bosch wires.
Did a cold (100deg outside) compression test and it came out to 120-110-150-150.
When the car runs it runs good, but besides that it has this random RPM drop out and stall that we can not figure out.
Any other ideas on what to test besides throwing more $ in new parts at it?
I might have a spare fuel ECU here but besides that nothing.
Trying to get these guys going so they can make it back to Texas.