I have recently purchased a 307 1.4 petrol with this issue. I have been pulling hairs out over this issue and so have my garage.
The cars stalling problem has now been solved. I'd just like to go through my experiences with the car first.
The car drove perfectly until I came to slow the car down either to go over a hump in the road or to change down gears to turn a corner. At every set of traffic lights and at any junction it would cut out without warning. Car started back up fine, but every journey turned out to just be a nightmare. I'd looked up different forums to self diagnose the problem, and found countless suggestions. None of which was related to my car.
A diagnostic was run which suggested the MAP sensor, this was changed to no avail. Then the control sensor , this was also changed to no avail.
I noticed that the rev counter would instantly drop to zero when reducing my speed causing it to cut out.
Well they got there in the end and it turned to be the speedo sensor not telling the cars brain how fast the car was going. The speed dial on the dash worked fine no problems there, but the cars brain didn't register the speed. I have had this part fitted and now all my problems are solved. The garage I took it to have carried out a splended job and never gave up.
I just hope that this helps anyone who is going through the same experience I did. Good luck with yours
Posted Aug 12, 2011 (13 years ago)