Misfiring under boost

Prototype_TB

Prototype_TB

Greenie N00B Member
Greenie Member
Good afternoon! I have had a problem with my car misfiring under boost load and was wondering if someone could give me advice. I just installed my Cobb accessport and installed the Stage1+ SF 91+ v400 tune hoping that a preset tune would help resolve my problem. It did not and is acting completely the same here are my parts installed

*AEM Cold air intake
*Catback Exhaust
*HPFP internals
*Corksport injector seals with new injectors (even though this shouldnt change anything thought id add it)
*EGR delete (wondering if this can be causing my problems)
I will be adding a dual bypass blowoff valve as well as an aftermarket TMIC in the future. logs are attached below. lmk if there is anything else i can do to help. Also i get a multicylinder misfire code as well as bank 1 rich codes.
 

Attachments

JohnnyTightlips said:
You need a real tune, the cobb tunes are not great. If that AEM intake is not the same diameter at the MAF as OEM those tunes will also not work. You are going super lean at WOT. Do not drive it like this "at least don't floor it, you can still drive like a granny". Get Purple Drank or Freek tuned.

https://www.revisionsrus.com/logs/2222
Click to expand...

Okay! Thank you so i just need an actual tune. should i wait for my TMIC and bypass valve to come in? or should i get this thing tuned ASAP? If im running lean i would probably need bigger fuel injectors? Anything i should do prior to getting a tune? or will just the Tune fix all my problems? Thank you
 
Go back to the stock tune
Check your sparck plug gap 0.027
Get a real tune
Coordinate with the tuner to get a basemap including the new part and install them after you get the basemap
 
Your lean is from the tune not the injectors. These cars are direct injected and they don't make bigger ones for it. The stock injectors are good too about 375 whp. Yes do the other mods before getting a tune.
Prototype_TB said:
Okay! Thank you so i just need an actual tune. should i wait for my TMIC and bypass valve to come in? or should i get this thing tuned ASAP? If im running lean i would probably need bigger fuel injectors? Anything i should do prior to getting a tune? or will just the Tune fix all my problems? Thank you
Click to expand...
 
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