370z Dumping Fuel into Cylinder 2,4,6.. WHY??!?

Z34Life · 08-09-2016, 08:01 PM

*Update*

So took it to Z Specialists and they are also stumped on why it is doing what it is doing. We removed the plugs and they weren't the best, however weren't destroyed either. It seemed to figure itself out since then. fuel trims have returned to some what normal but it comes and goes. However my power has now disappeared. Car feels sluggish and slow to respond, almost like the handbrake is up all the time. It has coughed a couple of times on cold startup and you can still hear a gentle mis fire here and there. Something is still wrong.

When using the torque app I can see MID:$21 TID:$82 Catalyst Monitor Bank 1 and MID:22 TID: $80Catalyst Monitor Bank 2 are not "OK" when it does it's check. However as of 2 days ago , Catalyst Monitor Bank1 is now OK but Bank 2 is still "Not OK" . It's also giving me a general "Mis fire" via the misfire monitor. I have also added a quick look at the o2 sensor on catalyst bank 2. just before the dip you will see a small bilp in the line, that is most of the time the mis-fire occuring maybe up to 3 times together.

photo share

It isn't throwing any fault codes now either.

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08-09-2016, 08:01 PM	#16 (permalink)
Z34Life Base Member Join Date: Jun 2014 Location: Sydney Australia Posts: 39 Drives: 12 Nissan 370Z M6 Rep Power: 12	Update So took it to Z Specialists and they are also stumped on why it is doing what it is doing. We removed the plugs and they weren't the best, however weren't destroyed either. It seemed to figure itself out since then. fuel trims have returned to some what normal but it comes and goes. However my power has now disappeared. Car feels sluggish and slow to respond, almost like the handbrake is up all the time. It has coughed a couple of times on cold startup and you can still hear a gentle mis fire here and there. Something is still wrong. When using the torque app I can see MID:$21 TID:$82 Catalyst Monitor Bank 1 and MID:22 TID: $80Catalyst Monitor Bank 2 are not "OK" when it does it's check. However as of 2 days ago , Catalyst Monitor Bank1 is now OK but Bank 2 is still "Not OK" . It's also giving me a general "Mis fire" via the misfire monitor. I have also added a quick look at the o2 sensor on catalyst bank 2. just before the dip you will see a small bilp in the line, that is most of the time the mis-fire occuring maybe up to 3 times together. photo share It isn't throwing any fault codes now either.