HELP! random cylinder misfire after turbo/pcm install
03-28-2011, 10:36 AM
#42
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oh I thought you were talking about from the video, it seems that I can't really get a straight number out of the AFR gauge which is why I had posted low 10's earlier and just yesterday I couldn't even get it into the low 10's
03-28-2011, 09:37 PM
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Hey guys, I thought I'd post an update. Had a new tune installed deleting the o2's alltogether and the truck is running much better. Idle quality is almost as good as before the turbo install and part throttle is much improved as well. I kept having problems with the bank 2 o2 sensor and I tried three different ones until I gave up on that. Now it's on to the tuning. I can't thank you guys enough for all the help.
03-28-2011, 11:25 PM
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Hey guys, I thought I'd post an update. Had a new tune installed deleting the o2's alltogether and the truck is running much better. Idle quality is almost as good as before the turbo install and part throttle is much improved as well. I kept having problems with the bank 2 o2 sensor and I tried three different ones until I gave up on that. Now it's on to the tuning. I can't thank you guys enough for all the help.
03-29-2011, 08:05 PM
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Yup. Actually I'm having some problems with the idle being really low now and the predator doesn't let me raise it anymore. Its a pita, but hopefully I can get this resolved soon.
03-30-2011, 10:41 PM
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Ok, The problem is officially fixed. We found a bend that was a bit kinked coming up from the intercooler to the intake. we fixed that and got it strapped to the dyno and after about an hour of two we got 445 horses to the wheels with 502ft. lb of torque. this is with only 6 pounds of boost and the wideband reading 10.6. Boost controller and meth inj. coming soon. Thanks again for all the help and suggestions you guys have given.
03-31-2011, 12:44 AM
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Ok, The problem is officially fixed. We found a bend that was a bit kinked coming up from the intercooler to the intake. we fixed that and got it strapped to the dyno and after about an hour of two we got 445 horses to the wheels with 502ft. lb of torque. this is with only 6 pounds of boost and the wideband reading 10.6. Boost controller and meth inj. coming soon. Thanks again for all the help and suggestions you guys have given.
I've got mine narrowed down to cylinder 4 is the only one misfiring (and is completely slowing me down) I swapped out the coil pack- still misfires, swapped out the plug wire-still misfires. I'm going to pull the plug out and inspect it, though it is new.. I'm hoping it is nothing serious... not looking good though
Mine still misfires on all cylinders randomly at idle, but I'm not too concerned with that
03-31-2011, 07:52 PM
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what!! huge numbers man, what all is done besides the turbo?
I've got mine narrowed down to cylinder 4 is the only one misfiring (and is completely slowing me down) I swapped out the coil pack- still misfires, swapped out the plug wire-still misfires. I'm going to pull the plug out and inspect it, though it is new.. I'm hoping it is nothing serious... not looking good though
Mine still misfires on all cylinders randomly at idle, but I'm not too concerned with that
I've got mine narrowed down to cylinder 4 is the only one misfiring (and is completely slowing me down) I swapped out the coil pack- still misfires, swapped out the plug wire-still misfires. I'm going to pull the plug out and inspect it, though it is new.. I'm hoping it is nothing serious... not looking good though
Mine still misfires on all cylinders randomly at idle, but I'm not too concerned with that
03-31-2011, 11:15 PM
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On mine, it was cylinders 2,4,and 6. I thought for sure that it was me eating **** and went lean boosting it as soon as it was together. My tuner took care of all that. Have you called Nelson Performance? I'm sure they could help you out. Keep us posted.