pcm bases fuelng on ect reading, not just for fan control. if its running way rich it can load up the plugs and the cat and stall out. you can do permanent damage to the cat on these if you run it rich a long time.

Hi again what is the easiest way of stopping the fuel on this engine, maybe fuel rail plug? as i need to clear the system so i can get it started again as it is obviously flooding itsself,
there are no codes at present but if i unplug the rail then obviously i will generate a code i know i can flash the codes, but how do i then delete the codes without a reader??

GMs have a clear flood mode you simply put the petal all the way down and the pcm shuts of the injectors.

you can delete codes on that year by leaving the battery unplugged for a little while and reconnecting

Hi Guys Big thank you to you all, found the issue i think, i unplugged the ect after it died again and it started straight up :) plugged it back in and the tickover increased, and as soon as i bip the throttle it dies! and wont start, unplug it again and it runs all day long starts on the key perfectly, i could not believe that this could cause so much hastle! but pressumably this is the cause and a cheap fix at that and hopefully my fans will go off afterwards.

Cant confirm anything till i order a new one from the states, going to order one from rock autos obviously there is the shipping involved but they go from about £4 uk pounds upwards is there any difference? is there one you guys would recommend.
loads more things to do now i need to find a white soft top roof canvas and think i may need some rubbers for the roof also :):):):)

delphi or ac delco parts work best and longest in GMs

I'd go with this one ACDELCO Part # 88999195, with core fee it is going to cost 100.00 over the price of the other two listed, but in my opinion it is worth it.
If you need to save money and choose one of the other two, I'd go with the A-1 Cardone.

When you get the ECM you are going to need to swap your old PROM over to it, there should be a little cover on your ECM, I think it is two screws holding it on, remove those and remove the PROM, then put it in the new ECM, and put that cover from the old one on it.

Anybody familiar with his year ECM?
It says "Additional relearns (theft, crankshaft, idle, etc) may be required", does this mean he will have to have a dealer do the relearns for him?
Or will he not need to do so since he is swapping over the old PROM?

An little confused at this last post its the ect i am replacing (temp sensor)?
not ecm so not sure about anything on the last post the ect has a two pin plug on it and screws in ?

Ordered one today from a local supplier i googled the part numbers and it cross referenced to an isuzu which i have orderdered that part:) i have to give it a bloody good clean its greens at present ( SUPPOSED TO BE WHITE LOL ) when i have done i will post some pictures up.

Doh, my mistake, I read your post wrong, I thought you said ECM, sorry about that.
I got this thread confused with a similar thread.

Thats ok then thought i had gone mad!!! :thumbup2