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KA24DET Stalling on deceleration

Posted: Thu Dec 07, 2017 11:42 am
by hatch4life
What's going on guys, I'm having stalling issues under deceleration, especially after rev past 2500-3000 rpm, doesn't matter if in gear or neutral, once you get off the throttle it gets super lean or super rich and dies

Tuner blamed it on IACV, replaced it, still happens, now they don't want anything to do with it, so I'm on my own

As you can see in the log from bin file, as the rpm goes down, the TP load, load index, and injection time go through the roof?

Little background:
92 KA24DET, manual swapped several years before build (never had problems with stalling), 9:1 compression, 750cc injectors, Z32 Maf, T3/T4 .57, stock cams, 15psi boost

Any help is greatly appreciated

KA-T.bin
(32 KiB) Downloaded 88 times

Re: KA24DET Stalling on deceleration

Posted: Thu Dec 07, 2017 2:33 pm
by Matt
Probably MAF reversion related. No log file here? Please attached

Also look at this document:
http://nistune.com/docs/Nistune%20MAF%2 ... 0Notes.pdf

Re: KA24DET Stalling on deceleration

Posted: Thu Dec 07, 2017 3:01 pm
by hatch4life
KA-T.bin
(32 KiB) Downloaded 84 times

Re: KA24DET Stalling on deceleration

Posted: Thu Dec 07, 2017 5:23 pm
by Matt
Log files end with .log