Hello I posted about a week ago about my car stalling while hot. It didnt stall further until now so I didnt investigate further.
I went out shopping and drove the car to the supermarket about 15 minutes away no problem, came back out half an hour later and started it up, it fired up instantly but the car immediately died and the rev counter went straight down to zero and refused to idle. It did this at least 7 times and still died as above so I drove it home keeping the revs high to stop it from stalling and after about half way home it was idling correctly and not stalling. After arriving at home I left it a bit then I started the car to test it and it died again so I had a look at the spark plugs and they were slightly sooty so swapped in another used set that I had and test drove the car and it started and idled great for the test drive, so I thought that I had solved it and was going to put new spark plugs from volvo on monday.
I went out to the shops again and came out and it has done the same stalling routine, so not fixed.
Could it be the Hall sensor or the power stage? As I phoned up volvo and they want £58.00 UK pounds just for the sensor and I dont want to pay out if that isnt it, or should I just replace both? If it is the Hall sensor what happens to it to make it stall?
Many thanks James.