rs turbo cutting out

gazcull · Post by **gazcull** » Sun Dec 16, 2012 1:26 pm

hi , wonder if any one can help, my 94 rs turbo engine in my l series has just developed a fault. it randomly cuts out, no warning , no engine check light. it generally stays off for between 2 to 30 seconds and starts again and all is fine, was doing it every 100 ks or so but that is now down to about 10 ks , please any ideas, don't really know where to start , thinking maybe fuel pump but really not sure , cheers for any help

littlewhiteute · Post by **littlewhiteute** » Sun Dec 16, 2012 1:30 pm

Cuts out slowly would be fuel pump, or pump relay etc.

Dead cut, like turning off the key, could be anything.

Which way does it cut out? Fast or slow?

steptoe · Post by **steptoe** » Sun Dec 16, 2012 5:35 pm

if the pump is within belting distance, when it won't start, give pump body a gentle whack and see if it kicks into life while someone cranks for you - within the prime time off ignition on befor power to pump cuts off again.

gazcull · Post by **gazcull** » Mon Dec 17, 2012 8:36 pm

it cuts out suddenly just like the ignition has been switched , so probably not fuel pump then , maybe its an ignition fault???

sven '2' · Post by **sven '2'** » Tue Dec 18, 2012 6:17 am

Coil packs?

The OMEs are notorious for presenting all sorts of bugs. The Bosch upgrade is a tried and tested fix.

Mine used cut at random only above 80kph, and only in the summer. New coil packs fixed it.

Jump on rslc for finer the details - is a DIY

RSR 555 · Post by **RSR 555** » Tue Dec 18, 2012 2:08 pm

Check for any loose connections in the engine bay or under the dash.

Has anything been done recently to the car and possibly disturbed something?

gazcull · Post by **gazcull** » Thu Dec 20, 2012 6:15 pm

i had to change the relay that does the head lights a few weeks ago , maybe i disturbed something , i'll start there

d_generate · Post by **d_generate** » Thu Dec 20, 2012 6:19 pm

Start the car and let it idle while you wriggle every plug and connector you can find under the bonnet and dash, if it cut's you've found the culprit.

Also check the fuel pump connections.

RSR 555 · Post by **RSR 555** » Thu Dec 20, 2012 10:39 pm

You could have loosened an earth point somewhere.. very hard to know how the conversion was done??