Hi Guys and girls
Very long time no post. I hope everyone is well. I'm still living abroad, and my brother who is looking after my 993 is stumped on a starting issue the car has developed. He and I rebuilt the top of the engine ourselves, and have had most of the car apart at one time or another so are not total noobs with it. It was also mapped by Wayne a while back.
We also have the durametric, but no help there.
The problem goes like this.....
Car starts immediately, on the button from cold and runs well. Not perfectly but well. Turn off the car when its warm or even after a few minutes and no start. Can smell fuel. If it does start it will rev to 2,000 and stay there blip throttle and it comes down a bit but not drivable.
Leave it a while, the hotter the longer, then its ok again.
We know its not the DME. Changed it and jumping the terminals does not help.
O2 sensor is new and it passed the MOT afterwards, so its not that.
Fuel pump is running seemingly fine. Plus can smell fuel.
MAF has been cleaned, but could be faulty. Car runs well if you do not switch it off though. Have not pulled the MAF plug yet when its in a non start state but will try that next time.
Battery is good plus earths. The engine spins very fast when not starting, so its not the 200 rpm no start limit or whatever it is.
Have not checked starter motor earths yet.
Have not checked CHT sensor, but Motronic on the durametric shows no faults. And believe me when the car wants to throw faults then they do appear. Usually cryptic ones.
So any help much appreciated. The answer is out there somewhere.
If he gets stuck in another petrol station I think that will be it. Plus more importantly I am back in the UK next week and want to drive it without having to keep the engine running all the time.
Failing that the car is in SE London (Beckenham) and may have to go to a specialist (suggestions please). We hate to admit defeat though, and specialists love to fix things via an expensive just replace everything strategy. The car has done 200k miles and its just not that sort of situation/relationship.
Thanks again in advance
Berni
Very long time no post. I hope everyone is well. I'm still living abroad, and my brother who is looking after my 993 is stumped on a starting issue the car has developed. He and I rebuilt the top of the engine ourselves, and have had most of the car apart at one time or another so are not total noobs with it. It was also mapped by Wayne a while back.
We also have the durametric, but no help there.
The problem goes like this.....
Car starts immediately, on the button from cold and runs well. Not perfectly but well. Turn off the car when its warm or even after a few minutes and no start. Can smell fuel. If it does start it will rev to 2,000 and stay there blip throttle and it comes down a bit but not drivable.
Leave it a while, the hotter the longer, then its ok again.
We know its not the DME. Changed it and jumping the terminals does not help.
O2 sensor is new and it passed the MOT afterwards, so its not that.
Fuel pump is running seemingly fine. Plus can smell fuel.
MAF has been cleaned, but could be faulty. Car runs well if you do not switch it off though. Have not pulled the MAF plug yet when its in a non start state but will try that next time.
Battery is good plus earths. The engine spins very fast when not starting, so its not the 200 rpm no start limit or whatever it is.
Have not checked starter motor earths yet.
Have not checked CHT sensor, but Motronic on the durametric shows no faults. And believe me when the car wants to throw faults then they do appear. Usually cryptic ones.
So any help much appreciated. The answer is out there somewhere.
If he gets stuck in another petrol station I think that will be it. Plus more importantly I am back in the UK next week and want to drive it without having to keep the engine running all the time.
Failing that the car is in SE London (Beckenham) and may have to go to a specialist (suggestions please). We hate to admit defeat though, and specialists love to fix things via an expensive just replace everything strategy. The car has done 200k miles and its just not that sort of situation/relationship.
Thanks again in advance
Berni