car Breaking up or misfire at High RPM
#1
Newbie
Thread Starter
car Breaking up or misfire at High RPM
My car is on an AEM standalone, with 272 hks cams and evo 9 turbo. I just fixed a boost leak and put new bpr7es spark plugs in it. Now it is misfiring or breaking up at about 6000 rpms I pulled the plugs to look for detonation plugs look great no specals or nething. I pulled timing down to 11deg and even 9deg. Boost is also around 21 lbs and car is not on a maf. Any ideas. I was thinking coil going bad, loose grounds (tighten all of them)
Also I was wondering what you think about my cam situation Its HKS 272IN/272EX ex -4 and in -1. Always told the evos run great at 0 and 0 with HKS cam gears
Also I was wondering what you think about my cam situation Its HKS 272IN/272EX ex -4 and in -1. Always told the evos run great at 0 and 0 with HKS cam gears
Last edited by Nismo2evoawd; Jan 28, 2010 at 04:10 PM. Reason: added
#5
Newbie
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nobody ran into this problem, trying to find how to test the coils before i order the ones from spoolinup.com. Do you guys hear good things about this setup. thanks
#7
Evolved Member
iTrader: (9)
My car was breaking up at higher RPMs before I parked it for the winter. I had new plugs put in and it didn't solve the issue. I noticed my cone filter was somewhat dirty. I washed it out and put it back on. So far it has been running top notch with no break ups at higher RPMs. In my case, my car was probably choking because of the dirty air filter.
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erioshi
Evo Engine / Turbo / Drivetrain
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Mar 29, 2010 03:39 PM