thanks for the rapid replies guys, ill do my best to answer some questions
" I connected a wire from this terminal to earth there by bypassing the ECU and hopefully turning on the fan"
Not entirely certain what you mean by this...just what did you connect to earth?
To explain rather than the ecu activating the relay by conecting it to earth i took a wire from the ecu side of the relay and went straight to earth, which in theory should have switched the relay and turned on the fan, well as i said in theory any way, not sure if that makes anyore sense?
Just in case I missed anything...is it cranking over okay?
yep cranck fine it just doesnt start!
Have you checked you've not caught the fuel cut-off switch under the passenger seat. Look under the seat and you'll see it. If the pumps not priming it may be that. Unless you've buggered said pump...not 100% with out having a proper look.
yep i checked the switch under the seat that was all fine
I'm based in South Yorkshire mate (Barnsley) and I have some diag bits (nowt special) so if you get it running or you're not too far from me I might be able to bring my Laptop and interface and see if we can find anything out.
i did borrow a usb to obd2 cable from a friend last nite and using the alfadiag software and my laptop i tried to connect to the ecu but either i was doing something wrong or it couldnt find the ecu? maybe because its fried?
I would be checking the wiring to the other relays in front of the battery as if the start relays wires have broken away from the terminals then no matter if you resolve your fan issue (put 12V directly to the fan to see if it runs, then bypass the resistor till you can get a new one) then the engine will not run.
i have gone round most of the wiring and the relays and checked every fuse i can find and everything seems to be okay but i will have a go at getting the fan to run tonight by bypassing the relay altogether, small victories and all that!
out of interest is it possibile okay to run the 2.0 tspark on a 1.8 ecu only ive found a 1.8 ecu, key code ecu and key for rather a good price and figure it would help me rule out the ecu as being faulty? maybe?
cheers for the comments guys, im going to have another tinker with it tonight but what with the key code light not coming on at all im beginning to think its the ecu ive fried!
im trying to think of ways i can prove whether or not the ecu is dead? one thought was to check for a spark at the plugs? i assume that if theres no spark the ecu would be at fault?
its pretty pointless checking for fuel as the pumps not priming/ relays not switching i assume this is also controlled by the ecu?
any more thoughts?