Clio 172 Ph2 stutters and shuts down in idle. Just shuts down while driving. Help?

[clio_il]

Hello.
So my Clio 172 ph 2 started having this weird problem.
Whenever the A/C is turned on, after a long (50-150kms) drive it will start to shut down during driving. It sometimes also stutters at idle, loosing rpms, then shuts down.
The car was serviced at the main Renault workshop here, and they could not find the problem. ECU is not showing up any codes.
When idling, the problem happens as the radiator fan turns on. When driving im not sure.
Ive cleaned the TBs, checked the step motor, replaced plugs, all the usuals...
anyone can chime in and help? Im a bit loss, and Renault cant seem to help either.

BTW, I felt like they started to happen right after the car was serviced in a registered Renault workshop (not the main one though. Me being paranoid, I always thought they did something on purpose... but thats just my paranoia speaking)

Please help.

 

[clio_il]

Re: Clio 172 Ph2 stutters and shuts down in idle. Just shuts down while driving. Help

bump. anyone?

 

[clio_il]

Re: Clio 172 Ph2 stutters and shuts down in idle. Just shuts down while driving. Help

OK, the problem is now fixed!!
turns out it was the fuel pump! we attached a monitor for real time monitoring of the fuel pressure. normal pressure in the system was 2.5 bar which lower than the 3 bar something required. when the temperatures around here climbed to 30-35 Celsius and the pupm would heat up it would only push 1.2-1.5 bar!
Replaced the fuel pump and now all is well!

 

[Chip-mk1]

Re: Clio 172 Ph2 stutters and shuts down in idle. Just shuts down while driving. Help

Wow, that it is low fuel pressure, glad to hear you have sorted it though.

Fingers crossed it hasnt been damaged by driving it with low fuel pressure, as that will cause it to run lean which can damage the pistons.

 

[clio_il]

Re: Clio 172 Ph2 stutters and shuts down in idle. Just shuts down while driving. Help

I hope it didnt lean out too much. I dont think there was any detonation or anything like that. Compression is good across the head

 

[The Chubby Pirate]

Re: Clio 172 Ph2 stutters and shuts down in idle. Just shuts down while driving. Help

Good that you got it sorted, can't be many Clio RS' in Israel?