Random Ignition Cut

jake1191 · Post by **jake1191** » Wed Mar 16, 2011 7:33 pm

Recently my car started to do what i thought was boost cut. So i lowered the boost with my MBC and have the car hitting 5psi. My tune was made on 7psi and has been running great for about a month or so. Now for some reason at random times in any gear under a high load/boost my car will just fall on its face until i let off the gas and go back to it. I have only had this happen at 1/3rd throttle or more.

Any ideas what it could be?

AREA876 · Post by **AREA876** » Thu Mar 17, 2011 5:10 am

You need to post your calibration and a datalog of the problem

jake1191 · Post by **jake1191** » Fri Mar 18, 2011 8:15 am

The issue is in this datalog that i caught happens at 5000rpm and it is an ignition cut.

I know my wideband readings are off but that is mainly due to open exhaust at the current time and the sensor being close to the outlet.

jake1191 · Post by **jake1191** » Sat Mar 19, 2011 6:25 am

Any ideas? This is driving me nuts

Post by **Spunkster** » Mon Mar 21, 2011 5:00 pm

That datalog shows you reving past 5000 rpm without any problems, can you give the exact time index you are referring to?