Spoke too soon.
Car stalled again yesterday while my son was driving, he pulled over & it started up again.
I drove it to work today, it tried to stall but I feathered the gas & kept the motor running, still had to pull over while doing it.
Tonight I resoldered the connections on the Fuel Pump Relay. Seems a little smoother on short drive, but still slightly hunting idle.
Previously I had replaced plugs, cap & rotor, air filter, reinstalled the Ignition Amp with thermal compound, no codes set by the Fuel or Ignition systems on the diagnostics.
Next I'm going to check the Crank Speed Sensor (I have a new one, also new pump relay & plug wires coming from IPD).
Is there an easy way to check the fuel injectors? I have a wire harness with LED I made a few years ago to check the wires for the injectors, but I would like to see how the injectors themselves are performing.
Thanks for the input.
Mike
940 stalls at Hwy speed - 2 quick questions
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macs70GLT
- Posts: 86
- Joined: 25 September 2009
- Year and Model: S70 GLT 1998
- Location: Maple Valley, WA
Update: 940 stalls at Hwy speed - 2 quick questions
Lars: 1988 245, 250K mi retired
Son of Lars: 1998 S70 GLT, 225K mi retired
Beast Mode: 1995 940T, 213K mi
Son's car: 1998 V70 GLT, 182K mi
Hans: 2002 Audi A4 QMT, 142K mi
Son of Lars: 1998 S70 GLT, 225K mi retired
Beast Mode: 1995 940T, 213K mi
Son's car: 1998 V70 GLT, 182K mi
Hans: 2002 Audi A4 QMT, 142K mi
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macs70GLT
- Posts: 86
- Joined: 25 September 2009
- Year and Model: S70 GLT 1998
- Location: Maple Valley, WA
Hi Doug,
I think the ignition amplifier was the main contributor for my 940 stalling issue.
More recently I finally found the vacuum leak which made it idle rough; bad intake manifold gasket. It runs much better after replacing that along with cleaning the IAC valve and throttle intake.
Mike
I think the ignition amplifier was the main contributor for my 940 stalling issue.
More recently I finally found the vacuum leak which made it idle rough; bad intake manifold gasket. It runs much better after replacing that along with cleaning the IAC valve and throttle intake.
Mike
Lars: 1988 245, 250K mi retired
Son of Lars: 1998 S70 GLT, 225K mi retired
Beast Mode: 1995 940T, 213K mi
Son's car: 1998 V70 GLT, 182K mi
Hans: 2002 Audi A4 QMT, 142K mi
Son of Lars: 1998 S70 GLT, 225K mi retired
Beast Mode: 1995 940T, 213K mi
Son's car: 1998 V70 GLT, 182K mi
Hans: 2002 Audi A4 QMT, 142K mi
Hi Mike,
I just got back to this thread. I have been chasing this issue as a fuel delivery problem, as it feels like the car is running out of gas, although there is gas in the tank. If I am driving, i can slip into neutral, feather the gas and keep it running, which again seems like a fuel problem.
I can also say that it only happens after the car is fully warmed up, so maybe it is electrical. The care will start in a minute or so, and the issue always passes never left anyone stranded. The car runs well the rest of the time.
Just so I'm clear, you replaced your ignition amplifier and the problem has not returned?
Thanks,
--Doug
I just got back to this thread. I have been chasing this issue as a fuel delivery problem, as it feels like the car is running out of gas, although there is gas in the tank. If I am driving, i can slip into neutral, feather the gas and keep it running, which again seems like a fuel problem.
I can also say that it only happens after the car is fully warmed up, so maybe it is electrical. The care will start in a minute or so, and the issue always passes never left anyone stranded. The car runs well the rest of the time.
Just so I'm clear, you replaced your ignition amplifier and the problem has not returned?
Thanks,
--Doug
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