thatengineer
New member
- Joined
- Mar 4, 2015
- Messages
- 14
- Points
- 4
Hello all, from a new boy.
I'm struggling with my Stilo MW, and need your help!
My Fiat Stilo, 1.6 2006 Plate is misfiring under load, with fluctuating idle. As you put load on, it will "yuk and snatch" to a point, but sometimes come out of the other side of it.
The error code it comes up with 95% of the time is P0203, Cylinder Injector Malfunction - Cylinder 3. Sometimes it will treat me to P0201 too.
The story so far:
Throttle body taken off and cleaned up (was quite dirty)
Injector sent for servicing and refitted (Test reports good)
Fuel rail checked for cleanliness (Clean)
Injection loom to the injector checked for resistance and intermittent wire breaks (OK at all around 15 ohms)
Ran with MAP sensor disconnected (Still same fault)
Coils swapped around to check (No change)
Spark plugs checked (Gaps okay, a little white, but not too bad)
The fiat has a MAP sensor rather than a MAF sensor, so any splits or loose clips in the intake trunking upto the throttle body would have no affect, as it is manifold pressure that is monitored rather than mass.
The MAP sensor was removed and cleaned already, but the conditions seem to be getting worse rather than better with the idle getting worse rather than better, now progressing to cutting out within the erratic idle. I did note (via the diagnostics I do have) that under acceleration when it is snatching, the advance drops back to 5-10% , before picking up to a more healthy 30-50%.
Any thoughts?
Many thanks.
I'm struggling with my Stilo MW, and need your help!
My Fiat Stilo, 1.6 2006 Plate is misfiring under load, with fluctuating idle. As you put load on, it will "yuk and snatch" to a point, but sometimes come out of the other side of it.
The error code it comes up with 95% of the time is P0203, Cylinder Injector Malfunction - Cylinder 3. Sometimes it will treat me to P0201 too.
The story so far:
Throttle body taken off and cleaned up (was quite dirty)
Injector sent for servicing and refitted (Test reports good)
Fuel rail checked for cleanliness (Clean)
Injection loom to the injector checked for resistance and intermittent wire breaks (OK at all around 15 ohms)
Ran with MAP sensor disconnected (Still same fault)
Coils swapped around to check (No change)
Spark plugs checked (Gaps okay, a little white, but not too bad)
The fiat has a MAP sensor rather than a MAF sensor, so any splits or loose clips in the intake trunking upto the throttle body would have no affect, as it is manifold pressure that is monitored rather than mass.
The MAP sensor was removed and cleaned already, but the conditions seem to be getting worse rather than better with the idle getting worse rather than better, now progressing to cutting out within the erratic idle. I did note (via the diagnostics I do have) that under acceleration when it is snatching, the advance drops back to 5-10% , before picking up to a more healthy 30-50%.
Any thoughts?
Many thanks.