Hello everyone.
I've recently finished a whole bunch of repairs on my car. I've replaced the main harness, the ignition harness, the throttle body (all those wires were totally degraded), the ignition coils, the spark plug wires, the MAF (no worries, genuine Bosch) and the front O2 sensor (rear O2 sensor was rust welded on there, will have to take it to a shop to have it replaced). I would love to take my car out for a run to see how well it behaves after all these repairs, however, a new issue has emerged.
After just a few minutes of driving, right when the engine should hit it's operating temp, the engine stalls. When trying to restart it, no go. Initially it feels like it's getting a little bit of fuel, because it sort of coughs, but then it just cranks. If I wait about 15 minutes, the engine restarts as if this never happened. I didn't drive it for for much afterwards, just changed to the other side of street and parked it, as I was in a no-parking zone. Then I walked home since the problem didn't happen far away.
I've been reading about the cool down the sensor method of diagnosing, however I did not have anything to cool down the sensors with when this happened. This seems to point to crank position sensor, but I've read that similar symptoms can be caused by the cam position sensor, and it seems to me that a 15 minute cool down near the hot crankcase is a little quick.
Other symptoms (from before all these repairs): I've always had a slightly fluctuating idle, even with the recent repairs. I don't think there is a vacuum leak since all vacuum components are working fine (trans does shift a little hard on all gears, vacuum mod is probably done). Also, sometimes when I start the engine, it will fire up on the first crank, but usually takes 3-4 to start. My car also always seemed a little lazy in the low RPMs, with the engine coming to life at around 2500 rpm. But that could be the 2.2 engine just being a 2.2 engine.
Will it be a cam sensor or crank sensor? I'm hoping for cam, just because it will be much easier to replace.
I've recently finished a whole bunch of repairs on my car. I've replaced the main harness, the ignition harness, the throttle body (all those wires were totally degraded), the ignition coils, the spark plug wires, the MAF (no worries, genuine Bosch) and the front O2 sensor (rear O2 sensor was rust welded on there, will have to take it to a shop to have it replaced). I would love to take my car out for a run to see how well it behaves after all these repairs, however, a new issue has emerged.
After just a few minutes of driving, right when the engine should hit it's operating temp, the engine stalls. When trying to restart it, no go. Initially it feels like it's getting a little bit of fuel, because it sort of coughs, but then it just cranks. If I wait about 15 minutes, the engine restarts as if this never happened. I didn't drive it for for much afterwards, just changed to the other side of street and parked it, as I was in a no-parking zone. Then I walked home since the problem didn't happen far away.
I've been reading about the cool down the sensor method of diagnosing, however I did not have anything to cool down the sensors with when this happened. This seems to point to crank position sensor, but I've read that similar symptoms can be caused by the cam position sensor, and it seems to me that a 15 minute cool down near the hot crankcase is a little quick.
Other symptoms (from before all these repairs): I've always had a slightly fluctuating idle, even with the recent repairs. I don't think there is a vacuum leak since all vacuum components are working fine (trans does shift a little hard on all gears, vacuum mod is probably done). Also, sometimes when I start the engine, it will fire up on the first crank, but usually takes 3-4 to start. My car also always seemed a little lazy in the low RPMs, with the engine coming to life at around 2500 rpm. But that could be the 2.2 engine just being a 2.2 engine.
Will it be a cam sensor or crank sensor? I'm hoping for cam, just because it will be much easier to replace.
