86 190e stalls
My 86 190e stalls upon acceleration after driving for about 5 minutes. After restarting it runs fine for about another 3-5 minutes and then the same story all over again. I have replaced the coil, fuel pump, fuel relay, fuel filter, and pressure regulator. Would the OVP be a suspect here? Any help would be aprreciated !!!
Thanks |
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There may be many things causing the car to stall upon acceleration. You say that the car starts right up after stalling and this seems like an electronic problem. When you accelerate you step on the air and the air-flow meter drops, tells the computer to reachen the fuel. If your potentiometer (air-flow meter's variable resistance meter) is bad, it will have a nonlinear resistancecurve. The bad potentiometer will make the injection control computer mad and it will shut down also shutting down the car. This happened to me and right now I have the potentiometer disconnected. Every time I connect it my car stalls upon acceleration. You will have slower acceleration (no burning rubber) but no other problems with it disconnected.
Fuel pump relay can also be causing this problem. Try jumping pins 87 and 30 of the fuel pump relay. This will make the fuel pump work all the time. Then, drive the car and see if the car will stall. Here is how the parts look. Red circle - potentiometer, green circle-fuel pressure regulator. Hope this helps. |
I have the similar problems like yours-start fine,engine stall
after 3-5 min, and restart again. Same like you I changed many electric part. Finally, changed the oxygen sensor with cable together passing thru the front passenge seat, the stalling was gone. Hope this will help you. |
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