hi all
been in the motor trade for more years than i can remember, but got a problem i cant solve, this car has been with me for 3 weeks and i'm no nearer, 1 week with a auto electrician who has to admit hes no nearer either, so any fiat techs out there who can help, car is a punto mk2 8 valve on an x reg, came in with common running on 2 cylinder problem, scanned it to find coil pack and ecu u/s, changed both coils and fitted after market ecu, started up and ran fine, configured ecu as i have done many times ( tickover till hot,rev, tickover rev etc, car ran fine, took it for a test drive after about 2 miles engine cut dead, mil lamp does not come on but key symbol comes on flashing, sometimes remove key re-insert and it will restart, sometimes not, tried second key with same results, checked numbers on new ecu with old and nos were'nt the same ,supplier apologised and reimbursed me, went to fiat who supplied an identical ecu to original, fitted this , configured it, went for run, exactely same results, at this point i am stumped so sent it to local sparky, he thought the problem might lie in the fact that the original radio had been replaced with a cd player and the new ecu could'nt communicate with radio and was going haywire, put original radio back in, did'nt make any difference, problem just the same, tearing hair out time, any clues boys cos i'm stumped
been in the motor trade for more years than i can remember, but got a problem i cant solve, this car has been with me for 3 weeks and i'm no nearer, 1 week with a auto electrician who has to admit hes no nearer either, so any fiat techs out there who can help, car is a punto mk2 8 valve on an x reg, came in with common running on 2 cylinder problem, scanned it to find coil pack and ecu u/s, changed both coils and fitted after market ecu, started up and ran fine, configured ecu as i have done many times ( tickover till hot,rev, tickover rev etc, car ran fine, took it for a test drive after about 2 miles engine cut dead, mil lamp does not come on but key symbol comes on flashing, sometimes remove key re-insert and it will restart, sometimes not, tried second key with same results, checked numbers on new ecu with old and nos were'nt the same ,supplier apologised and reimbursed me, went to fiat who supplied an identical ecu to original, fitted this , configured it, went for run, exactely same results, at this point i am stumped so sent it to local sparky, he thought the problem might lie in the fact that the original radio had been replaced with a cd player and the new ecu could'nt communicate with radio and was going haywire, put original radio back in, did'nt make any difference, problem just the same, tearing hair out time, any clues boys cos i'm stumped