Mike Connolly
2008-10-09 23:18:44 UTC
Hi All,
My 1.8 X-Reg Nissan Primera is sitting in a garage after a week of
trying to diagnose a problem.
Whilst driving along I accelerated the car hard to around 5500 rpm, just
under the red limit. Suddenly the power dropped off and the car free
wheeled to a halt and the engine stopped.
Trying to restart the car, would turn over and run for a few seconds
then simply cut-off.
RAC suspected a faulty fuel pump and towed me home.
Put the car into a garage with a good mechanic who's found the fuel pump
to be working fine.
Further tests he's tried to work out why it starts, then dies after 5
seconds:
* Had it hooked up to 2 separate diagnostic computers, both showed no
faults other than ignition system is shutting down after 5 seconds.
* Recommended to change cam and crankshaft sensors, done this, not helped.
* Checked spark plugs are sparking, fuel injectors are working initally
and then stopping.
* Checked coils, power to them initially, then power drops off.
* Checked the immobiliser is being switched off by having key and
transponder checked. Both working fine.
He suspects it's maybe the ECU that's faulty, although would the
diagnostic checks identify a dead ECU?
Can anyone through any more ideas into the pot, my mechanic is
determined to resolve this.
Cheers
Mike
My 1.8 X-Reg Nissan Primera is sitting in a garage after a week of
trying to diagnose a problem.
Whilst driving along I accelerated the car hard to around 5500 rpm, just
under the red limit. Suddenly the power dropped off and the car free
wheeled to a halt and the engine stopped.
Trying to restart the car, would turn over and run for a few seconds
then simply cut-off.
RAC suspected a faulty fuel pump and towed me home.
Put the car into a garage with a good mechanic who's found the fuel pump
to be working fine.
Further tests he's tried to work out why it starts, then dies after 5
seconds:
* Had it hooked up to 2 separate diagnostic computers, both showed no
faults other than ignition system is shutting down after 5 seconds.
* Recommended to change cam and crankshaft sensors, done this, not helped.
* Checked spark plugs are sparking, fuel injectors are working initally
and then stopping.
* Checked coils, power to them initially, then power drops off.
* Checked the immobiliser is being switched off by having key and
transponder checked. Both working fine.
He suspects it's maybe the ECU that's faulty, although would the
diagnostic checks identify a dead ECU?
Can anyone through any more ideas into the pot, my mechanic is
determined to resolve this.
Cheers
Mike