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Discussion Starter · #1 ·
Hello friends,

Due to overheating of the former one. I have swapped a 6G72 3.0l petrol engine on a 2008 Mitsubishi Pajero Montero
Now with ignition ON without cranking I have always constantly 4.97V on pin#2 of all the 6 ignition coils coming from Ecu 8631A527
The other pins of the coils are normal (earth on pin#1, 12V on pin#3)

I assumed that the ecu was bad and bought another one (second hand)
But the result with it is the same

Do you thing the both ecus are bad?
if yes can , do you think tem reparable? which component is usually concern with this kind of issue?
if not how do I fix this problem.

I point out that I can read the 2 Ecus with Ktag.
Regards
 

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Discussion Starter · #2 ·
Hello,

Here is the only fault code that appears on the engine ECU
U1102 ASC / TCL / ABS timeout / Not equipped

As you can see on the oscillograms opposite, with the ignition on and when starting, the crankshaft sensor CH1 and the camshaft sensor CH2 are working well
but the control signal CH3 and CH4 of two coils taken at random does not move.

What can we deduce from this result

Regards
 

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