W210 M112 Fuel Injector Power
Thread Starter
Newbie
Joined: Apr 2012
Posts: 5
Likes: 2
w124 w210
W210 M112 Fuel Injector Power
My 2002 W210 M112 has a misfire on cylinder 3 which seems to be caused by a lack of pulse.
When starting all is good, but after a few seconds, cylinder 3 shuts off. I have tried with a test light to the injector plug, it blinks as it should for a few seconds, but then goes off. I have also tried to connect a fuel injector to the plug, clicks fine for a few seconds, then shuts down.
Connection to ECU is checked and good.
DTCs found:
P0203 (Y62y3 cylinder 3 fuel injector) - MIL on & current
P0300-80 (Misfire cylinder 4) - MIL on & stored & current
P0304-82 (Misfire cylinder 4) - MIL on & current
P0303-83 (misfire cylinder 3) - MIL on & stored & current
P0303-67 (Misfire cylinder 3) - current
P0304-69 (Misfire cylinder 4) - current
All spark plugs and coils were replaced about 2,000 km ago.
I hope it doesn't require a new ECU.
When starting all is good, but after a few seconds, cylinder 3 shuts off. I have tried with a test light to the injector plug, it blinks as it should for a few seconds, but then goes off. I have also tried to connect a fuel injector to the plug, clicks fine for a few seconds, then shuts down.
Connection to ECU is checked and good.
DTCs found:
P0203 (Y62y3 cylinder 3 fuel injector) - MIL on & current
P0300-80 (Misfire cylinder 4) - MIL on & stored & current
P0304-82 (Misfire cylinder 4) - MIL on & current
P0303-83 (misfire cylinder 3) - MIL on & stored & current
P0303-67 (Misfire cylinder 3) - current
P0304-69 (Misfire cylinder 4) - current
All spark plugs and coils were replaced about 2,000 km ago.
I hope it doesn't require a new ECU.
Thread Starter
Newbie
Joined: Apr 2012
Posts: 5
Likes: 2
w124 w210
Thanks Plutoe
I suspected that.
However, I believe ECU swapping will not work - only a new virgin from MB dealer will. Do you have any experience to suggest it would be possible to simply swap ECU with same part number?
However, I believe ECU swapping will not work - only a new virgin from MB dealer will. Do you have any experience to suggest it would be possible to simply swap ECU with same part number?
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
