Hope someone can help me out. I am from the Netherlands and have a 149 3.2 V6-aut, station from 2007with 108.000km
since 4 weeks my 159 3.2 V6 always and only burning the 4th (seen from the front the middle cylinder 1st bank) cylinder coil. I melted 6 coils in 2 weeks time 10km distance
We replaced ECU (moved software from ECU including pin code from old to other ECU )
We checked wiring harness (complete disassembling from coil to ECU)
We made new grounds (to engine and system) to coil number 4
checked and replaced ground battery to car frame and Motor/gearbox
changed spark plugs (Bosch and NGK all types that could be used)
monitored with scanners if there is differences between time frame coil puls from ECU
The coil and spark plugs we use are mentioned by Alfa
coils only, and almost immediately burns in seconds at short test drive and is not burning if the engine only runs at garage, with low or high RPM's. we tested already for hours running engine stationary and different rpm's. Its only happening at load?
hope someone knows the answer?
thanks Igo (running out of coils and ideas now)