Stalling intermittently has code 29 quad driver module (computer) 4th gear circuit need to know how to fix. I also when it stalled went through and unplugged each injector one at a time after it stalled to see if it would quit stalling when I drove and did not help. And it sometimes goes into overdrive at low speeds but that does not always happen and does not stall every time it does go into overdrive. Help me if you can!!! Thanks.
The overdrive solenoid in the transmission locks the torque converter, and at low speeds, if it activates or hasn't released from a high enough speed, it will cause stalling. If that is what's happening, it could be the solenoid, or the signal line to it from the ECM, or the ECM itself not working properly.
SOURCE: 94 Jeep Wrangler intermittently stalls when put in reverse, drive
Take the air inlet hose off where it enters the throttle body and take a look at the throttle plates. It is likely that they’re dirty and have a build-up of carbon deposits. That is the most common cause for stalling that we see in the shop for your vehicle. Sometimes all it takes is a good cleaning to cure the stalling problem. There is an idle speed setting on your Jeep, but to check and/or perform this service step requires the use of a computer scan tool for your vehicle. If the cleaning doesn’t help ask a repair facility to check and reset, if needed, the minimum idle speed on your Jeep.
Thnx.
SOURCE: 1998 Hyundai Excel stalls when idling or low gear?
new sensors or reconditioned ones from a scrapyard,best bet is main dealer
SOURCE: NTERMITTENT STALLING AND STARTING.
A very common for these problems is a leaking fuel pressure regulator. This leaks gas and causes extended crank times, stalling, and check engine light.
TechJK
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SOURCE: 2004 xterra P0505 code-idle air control
IAC valve has gone bad. Its located on the throttle body and is what controlls/keeps the vehicle running at idle.
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