Hi all,
I am having a prbolem with my Fiat Bravo 1.4 S (S reg).
It started with the car stalling a lot. I changed the throttle body. A garage found the following faults in the ECU and also changed the lower manifold as it was cracked.
Control module diagnosis FIAT Motronic MA 1.7.3 Error Memory
463A - Immobilizer Engine Control Unit - Blocked
0203 - Speed/reference-mark sensor - no signal
FFFF - Control Unit Knock Control Module - Faulty
I changed the Crank Sensor on further advice from this forum.
The car is better (the manifold replacement helped the most) but it still stalls a bit and a further issue has developed...
With the car in my garage I start it up and leave it idling / rev it a bit. Eventually the ECU error light comes on. When the light is on I press the accelerator and the car revs up I then release the accelerator and the engine gently drops in revs, if I press the accelerator again before the revs have reached idle then there is no increase in revs at all.
Eventually the revs drop to idle (foot still on accelerator) and all of a sudden the throttle kicks in and the revs increase again. I can do this repeatedly whilst the ECU light is on.
The accelerator cable is obviously opening the valve but its as if there is no mixture passed through until the revs reach idle.
Has anyone got any ideas what the issue could be as its causing a complete loss of drive whilst out on the roads.
Any help appreciated...
Drammy
I am having a prbolem with my Fiat Bravo 1.4 S (S reg).
It started with the car stalling a lot. I changed the throttle body. A garage found the following faults in the ECU and also changed the lower manifold as it was cracked.
Control module diagnosis FIAT Motronic MA 1.7.3 Error Memory
463A - Immobilizer Engine Control Unit - Blocked
0203 - Speed/reference-mark sensor - no signal
FFFF - Control Unit Knock Control Module - Faulty
I changed the Crank Sensor on further advice from this forum.
The car is better (the manifold replacement helped the most) but it still stalls a bit and a further issue has developed...
With the car in my garage I start it up and leave it idling / rev it a bit. Eventually the ECU error light comes on. When the light is on I press the accelerator and the car revs up I then release the accelerator and the engine gently drops in revs, if I press the accelerator again before the revs have reached idle then there is no increase in revs at all.
Eventually the revs drop to idle (foot still on accelerator) and all of a sudden the throttle kicks in and the revs increase again. I can do this repeatedly whilst the ECU light is on.
The accelerator cable is obviously opening the valve but its as if there is no mixture passed through until the revs reach idle.
Has anyone got any ideas what the issue could be as its causing a complete loss of drive whilst out on the roads.
Any help appreciated...
Drammy