Hi,
Looking for some advice,
I have a mk3 Fiat Punto 1.2 8v 53 plate. Recently developed an issue where DTC P0352 pops up and starts to run on 2 cylinders (1&4). This occurs after the engine gets up to temperature and then switched off and back on again whilst still warm.
If I leave the engine to get cold, it runs fine again.
P0352 represents coil b voltage fault. I have swapped the coils over during fault conditions, but fault does not move, so I suspected the low voltage side.
Stuck a multimeter on the low voltage side and am getting 12V so assume that no fuses gone. Not able to monitor for the spike at the low voltage side, but when i measure resistance from second pin to earth on both coil feeds they appear to be similar at about 1.4 ohms (i did not expect this as i believe the spike to be generated by ecu removing earth, however, if both are same and one is working, this must be ok).
So I am kind of at a loss now and cannot find a decent wiring diagram anywhere to trace the wires end to end.
Can anyone offer me any advice?
Cheers
Robbo