Im having trouble with my `89 RS Turbo!!

Its difficult to start n when it does eventually fire up it refuses to idle properly!! Its sparking fine n it is fuelling when the metering flap is pushed down.

Iv disconnected the cold start which made no difference, iv disconnected the multiplug on the side of the metering head which again made no difference!! Iv changed the pump, accumalator, ECU and Pink fuel pump relay. Iv checked the fuse for the heated seats n its ok. Im now running out of patience n cash!!

Has any1 got any idea of what else it could be or shall i just change the metering head as this is the only thing i havnt changed??

Any help appreciated!! Thanks

 

BTTT

 

are you running a dump valve?

 

also check the dipstick is sealed properly at the top

the hard plastic pipe what goes to the metering unit hasnt been burnt through a small hole can cause problems

any of the breathers from the rocker cover split?

take your dumpvalve off (if u run one)

cam/ingition timing out?

fuel ecu?

boost hoses split somewhere

give these a try mate

 

Cheers! Aint got a dump valve, dipstick sealed fine, no breathers split, boost hoses fine!!

Il check the over bits later, if there all fine will it be metering head??

 

hmmm, has a sump gasket recently been changed, or is it leaking?
If you advance or retard the camshaft, does it make it idle better? - if it does, i would guess you might have a vacuum leak somewhere.

Try turning the co2 adjustment screw on the inlet manifold, anti-clockwise i believe, this might help also.

Let us know how you get on

 

i had the same prob and checked EVERYTHING that you guys have mentioned and in the end it was jus a bit of water in the dizzy. sounds stupid but its worth checking

 

Yer check the Dizzy, anything in the dizzy will cause bad idle,

 

Have you tried the idle speed mines had a similar problem and i turned the idle about and not had any bother since!