For you guys with Misfires !
#26
Junior Member
iTrader: (1)
People are going to need more information then what you provided to diagnose your issue. Wrong injector data, improperly seated injectors, and just a messed up plug or coil could all cause what you have described. Is your misfire just at idle? Does it happen at wot? How many misfires are you reading? Where did you get your tune from?
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MADDOGCORPSMAN (03-28-2016)
#27
People are going to need more information then what you provided to diagnose your issue. Wrong injector data, improperly seated injectors, and just a messed up plug or coil could all cause what you have described. Is your misfire just at idle? Does it happen at wot? How many misfires are you reading? Where did you get your tune from?
#31
New Member
Random Misfire and MF in 1, 2, and 3
This misfire at idle has gone on for 6 months plus. I can't get my LNF inspected and risk getting stopped, although suppose would get a permit to extend inspection time.
The plugs have been changed three times, 1) older Iridium GMs replaced with 2) IDK cooler range, then 3) back to stock GM iridium's.
Then I tried replacing a found to be bad ign coil.
Then wound up buying the hot looking ZZP coils all four.
I wonder if it is a short to ground in those wires behind the driver side headlight?
I have not had a problem with a detectable misfire you could feel since replacement of that one coil over cyl 4.
Yet I must locate the culprit, and do not think two local dealers will help-as my mods will send them through the roof. Hahn intercooler, cross piping, downpipe, no cat, SRI from Dejon and external blow-off valve with capped recirculation at turbo flange.
The thing has great functionality and puts 315 horses to the wheels. It just baffles me.
The plugs have been changed three times, 1) older Iridium GMs replaced with 2) IDK cooler range, then 3) back to stock GM iridium's.
Then I tried replacing a found to be bad ign coil.
Then wound up buying the hot looking ZZP coils all four.
I wonder if it is a short to ground in those wires behind the driver side headlight?
I have not had a problem with a detectable misfire you could feel since replacement of that one coil over cyl 4.
Yet I must locate the culprit, and do not think two local dealers will help-as my mods will send them through the roof. Hahn intercooler, cross piping, downpipe, no cat, SRI from Dejon and external blow-off valve with capped recirculation at turbo flange.
The thing has great functionality and puts 315 horses to the wheels. It just baffles me.
#32
New Member
People are going to need more information then what you provided to diagnose your issue. Wrong injector data, improperly seated injectors, and just a messed up plug or coil could all cause what you have described. Is your misfire just at idle? Does it happen at wot? How many misfires are you reading? Where did you get your tune from?
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