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Riceball777 Riceball777 is offline
Junior Member
Posts: 211
Join Date: Jul 2015
Car: 2007 e90 335i
Default Does the mhd back end flash stop the c a t monitor from showing - 08-24-2020, 08:10 PM

I’m try to smog my car. I have the jb4 with the off the shelf mhd back end flash for E85/hybrid turbos. I also installed the vrsf o2 fix. I have been driving the car on map zero for a long time and it keeps on showing the c a t Is incomplete. The car does not even throw any codes. What gives??

The only thing I can think of is the back end flash turns off the monitor for the c a t? Is this true? I assume if this is true I just need to flash the car back to the stock flash?
Attached Images

2007 e90 335i
pure stgae 2 DD turbos, rb inlets, bms 4 bar map sensor
Jb4 with mhd hybrid e85 back end flash, vrsf down pipe vrsf 7" intercooler, vrsf charge pipe with tial bov and afe intake. Fuel it stage 2 pump and fuel line/ethanol content kit.
spec stage 2+ clutch with new oem dmfw

Last edited by Riceball777; 08-24-2020 at 08:17 PM..
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