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My 318iS cutting out randomly!

Posted: Mon Nov 08, 2010 8:05 pm
by RWD_Rob
Alrite there people!

Ok i was driving home from work today, and ive never had an issue with my iS but all of a sudden i was driving along at around 30mph and i went to accelerate and nothing! You could hear the engine trying to suck air but it was completely dead, then i dipped the clutch and all the lights came on the dash so i pulled over!
The car stalled, so i then cranked her over and it fired 1st time as normal! Revved it and it was perfect! I drove the 20 miles home down the motorway and then when i was getting into my hometown doing around 40-50 the same thing happened again! The car wont bump when it cuts out, it only re-starts once you have allowed the engine to completely stall and then crank it again?!

So random! Would a fuel pump cause this? Or would a fuel pump fault not allow the car to run at all?
Im gonna go out in the car again in a mo and try and get it happen again to see if the rev counter drops away as i didnt check that when it happened!

Any help would be greatly appreciated!

Thanks
Rob

Re: My 318iS cutting out randomly!

Posted: Tue Nov 09, 2010 2:03 am
by TouringTash
has the tank been run very low recently, any work carried out under the bonnet, are the connections in the engine bay connected tightly?

Re: My 318iS cutting out randomly!

Posted: Wed Nov 10, 2010 11:13 am
by shox1991
mine did this and i never found the problem, the only thing i found was a split in my air pipe from afm to inlet manifold taped that up and never had the problem again but saying that now i was tryin to fix the spotlights the other day, started messing with the switch in the cab and now it wont start so i think its something behind the dash causing the problems as it starts now and again but then cuts out and stalls so hope that helps

Re: My 318iS cutting out randomly!

Posted: Wed Nov 10, 2010 12:40 pm
by eddieg
I had this on an M40 as part of a more general bad running, kangarooing, stalling problem. I was told that replacing the main and fuel pump realys was the solution to the stalling bit - I did this among other things ( like replacing the afm, replacing the crack position sensor and the TPS) and all problems now gone. It was trial and error - but the relays are a cheap thing to replace - either with new or known working ones.

Re: My 318iS cutting out randomly!

Posted: Wed Nov 10, 2010 7:40 pm
by BEERBOY123
Was it very wet weather when this occurred?