i think there seems to be an overall problem with 1992 spi coopers. the earlier ones ran off the double block ecu (the ecu had 2 connecting blocks for the loom) and the later ones came with the single block and it so continued as such.
i have posted another topic on here about lambda readings in which i know sprocket has had a look and suggested some solutions to very perculiar and severe problems i have been experiencing:
i have a new 1293 with fast road cam, standard head and all the other bits standard bar k&n and back box. my lambda sensor was playing up or so i thought and it was reading a fixed 2.1v. after changing the ecu for 3 different ones, the lambda sensor, substituing the lambda relay, changing entire injection bodies and stepper motors etc, the loom, fuel traps, different elbows and pipes for the vacuums, closing over the breather rails and all to a varying degree of success or not should the case be. the only thing i havent changed or substitued so far is a air temp sensor! i even changed my ignition to a different non-spliced one and removed my alarm that was fitted during engine change.
my emissions were the only thing that i had to pass for MOT. the final result was a pass but only after having different 'everything' in my car. previous emissions tests read off the scale apparently!! the only thing i have not changed is the loom and ecu to the single block type (to which i am keeping an eye out for). i think this might well help my problems. the last time i read my sensors the map was about 47 when warm and on idle, the lambda read about 1.5-1.6v on idle and dropping with increasing revs, the coolant was at about 90 and i guess my emissions were also lower. this was obviously helped with a new cat though as the old one was pretty stuffed!
thoughts and suggestions such as a big bore exhaust giving no backpressure have been ignorantly and possibly stupidly ignored. other suggestions such as manifold air leaks have been taken into consideration and checked and have resulted in my breather rail being blocked off and will soon be removed totally. my air filter also could have been addressed and probably contribute slightly as its in a dirty order.
i dont think there is possibly anything elsewhere that i could check or change. i took the car to an auto sparks and he just suggested that the map sensor in the ecu was at fault. he said he doubts an earthing somewhere or a short somehwere they shouldnt. all harness earths were checked and in good order. EVERYTHING bar the very few things i have mentioned above have been addressed and havent resulted in a 'YES - that was the problem, the car is now fixed'.
so if you have a 92 spi and are having problems, think about what i have said and see if you should think deeper than you might do normally if you come across fueling problems!!
EDIT - and what do you mean 'rover' want to charge you £70 an hour, where are you living and who are you going to? i didnt think rover existed to do that kind of thing anymore!! and even if they did im told that YOU would have more of an idea of anything and everything compared to themselves!!!
Edited by Black_Pearl, 10 September 2006 - 03:09 PM.