Hi guys hope you can help...

me and a phil2002 have recently rewired my 044 fuel pump as i was only getting 7volts through original wiring loom after rewiring i have a healthy 13volts.

The problem i have got is the car will no longer tick over when cold. Has anybody got any ideas what may have caused this?

Also, is there anyway of testing the idle speed control valve?

Thanks for your help!

The car is a 3dr Sierra Cossie on level 6

 

test

 

maybe the cars running rich now then

 

maybe any other ideas

 

The easiest way to test the ISCV is to simply disconnect it with the engine running (On a cold start), if the revs drop then it shows it to be working, if no change then it's not working.

I doubt it will be running rich, if it otherwise runs ok? Easiest thing would be to check the fuel pressure.

Does it run at cold if you give it some revs?

Martin

 

if i keep the revs up myself itll run but just not ticking over by herself when cold. As soon as its warm it idles fine as it did,its just this cold start issue im having thats the prob

forgot to mention i unplugged iscv made no change just cuts out mate

john

 

Yes and so then it's the ISCV thats not working, check it's getting a 12V feed with the engine running?

Martin

 

gonna check it tomorow mate,got a pal whos gona let me try his.is it normal for them to just stop working?

 

recheck the fuel pressure is correct as well as the co levels!

 

No not really, the most common problem being they can stick which is solved by cleaning and then lubeing the valve.

Martin

 

got no way of checking pressure,ill try mot garage and ask them to check co what shoukl it be? thanx for your help guys