Winger101

Hi all,

Thought I'd start a new thread relating to my problem. As I'm stuck!

Car starts and runs like a dream, CO is perfect alls great...

...until she gets warmed up then she overfuels and cuts out

with the white plug DISCONNECTED from the Electro-magnetic pressure actuator on back of metering unit she will again run perfect even when hot...

...When I plug it back on when engines warm it just overfuels and cuts out almost immediately and won't start unless either you wait for engine to be stone cold or you pull white plug off and it will then fire straight up??

Any ideas about this EMP actuator what feed should it be getting etc and how to test it, I've tried another one and same problem So i think it may be wiring to it, ECU telling it to constantly give more fuel or something,, fine when engines cold but not when hot..

I really hope someone's had same fault. Thanks for reading

AstoN_B

iTrader: (1)

Could be coolant temp sensor in inlet manifold. If it thinks it's still cold it'll add the fuel to suit. It might be breaking down with the temperature.

Winger101

Have replaced the sensor but possibly wiring! Not sure where to start with that?

Versus_Creations

iTrader: (1)

check the voltage. To the sensors make sure they have power.

get yourself a copy of the S1 manual and read section 29B-37

Winger101

THINK I'VE FIXED IT!!!!

Running problems and overfueling when warm has now GONE.

tested all the wiring from sensors to ECU etc and all seemed fine replaced a few tatty bits, then found the YELLOW coolant temp connected was missing its metal retaining clip!

So all the time I thought it was plugged in it actually wasn't all the way on so making no connection, made a retaining clip for it and hey presto fault with plugging Black box back in was gone.

Over the moon now!! Still a little struggle to start it when cold but I can live with that at the moment.

THANKS FOR ALL YOU ADVISE

Hope this helps someone else one day.

Winger101

yellow coolant temp connector (bloody spell check)