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Mitsubishi FTO misfire

  • XJalalX
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17 hours ago #92321 by XJalalX
Mitsubishi FTO misfire was created by XJalalX
Hello everyone!

I have a mitsubishi FTO its a car that wasnt imported to the US its mostly known in UK


Its a 2.0 V6 coil on plug system with a waste spark for the back bank

So front bank 3 ignition coils with 3 wires and back bank goes with ignition leads

This car been left for like almost 2 years i tried to fix it i couldnt i tried alot and im still trying after awhile and i just cant find the problem almost 2 years i been trying i really wish it starts running again


Symptoms are:
Weak spark on first coil and second coil and third coil no spark

There is no signal coming from ecu to the third coil the otherd have signal the third one doesnt


What i tested:
12v feed on all 3 coils
Continuity with ground on all coils
Fuses
Continuity between the third coil signal wire to ecu
Fuel smell, so injectors firing

Cam Nd crank sensors signals available

About an rpm signal i cant say because it has digital odometer and its not turning on probably its not connected its an aftermarket one

Check engine light comes on when switch on  and then goes off normally

Tested for codes: no codes


Parts replaced:
ECU
Engine wiring loom
Spark plugs
Cam sensor
Crank sensor
Ignition failure sensor



I hope someone helps me with this, thank you, i look forward for an answer!
 

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16 hours 53 minutes ago #92323 by XJalalX
Replied by XJalalX on topic Mitsubishi FTO misfire
Car was running with only front two coils sparking, third one 0 spark

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16 hours 50 minutes ago #92324 by XJalalX
Replied by XJalalX on topic Mitsubishi FTO misfire
Tested the signal wire of the 3rd coil from the ECU still had 0 signal

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