[V8s_are_slow]

yeah sorry, i was thinking, if you are running LEAN then you don't wanna do the mas mod. not fuel cut. but as for the fpr, he said his gauge was showing he was running rich. that could be a possible cause of that if he can't drop the fuel pressure.

This will cause richness and sometimes rich detonation but I don't think it contributes to fuel cut.

this is true, but doubting you're having fuel cut anyway.
scott

 

[Spool]

OK you all have me confused a bit... My intake elbow to the MAS is metal, the one from Dejon... Has the neck for the BOV return but its plugged off... obviously. What MAS hacks are you all refering to? I havent touched the mas, it just has the noise filter removed.
Basically i am wondering is whats the easiest and cheapest way to kill fuel cut? I know its fuel cut because when it happens my o2 gauge snaps to FULL LEAN, meaning fuel is being cut.
How to get rid of it is the problem... I can kinda do it by not hammering it... but thats not as fun. I also know im getting enough fuel because it runs 60PSI and runs a bar or so under full rich on my Auto Meter gauge.

 

[V8s_are_slow]

my gauge did that too. here's what happened to me. when i was modding my car, i had had new plugs from the dealer. but they were dual prongs. i got to the point with my mods that what would happen is that i would flow enough air to blow out the spark. during normal driving, no problem. but if i floored it, when the boost would get high, it would buck and kick hard. i thought for the life of me it was fuel cut. never would've dreamed it was the plugs cause they were brand new. i got the plugs that was listed in the manual....not knowing at the time that the dealer had single prongs too. someone just happened to mention plugs and told me that the dual prongs suck!!! so i went ahead and changed them out for the single prong. problem cleared up immediately. sure the gauge is gonna jump to the lean side. it's like everything is shutting down all at once. i'm giving you my 2 cents.....i could be wrong but that's just my experience. also, do you have an aftermarket fpr? never did get any feedback on that one.
scott

 

[Spool]

I will try the plug thing.. i mean it makes sence it only happens with my turbo SNAPS too full boost OR if im at HIGH RPM! Shit.. could be... hope it is!
No aftermarket FPR.
What do you suggest? Does it still adjust with vac and boost like stock one?

 

[joereitman]

"Has the neck for the BOV return but its plugged off"

If you unplug it and install a K&N there you will flow a lot of unmetered air- MAS bypass. This will lean you out so a logger is needed to monitor things.

Other MAS mods are backing out the screw in the MAS and removing lower honeycomb. See vfaq.

Joe

 

[Spool]

OH i c... hmmm but wont that be HORRIBLY lean though? And idle like dog shit?

 

[whitegst97]

Ok i need some help as well, i have the ngk bp7 and the 7mm NGK wires as well, im running 22 psi on a 20G with 93 octane and a walbro fuel pump, im getting fuel cut. But is weird cause before i was creeping to about 25 psi and thats when i hit fuel cut, although it never stayed on 20-25 psi for more than 5 secs. Now i have it at 22 psi and fuel is cutting there, why? and also what should i do to get rid of fuel cut, i have my AFC set to -2 at around 5.5k and 6k, if i bring it up more could this help,.
Another question, what Positive fuel percentage on the AFC will be hitting 100% duty cycle for the stock 450 injectors?? Thanks in advance

 

[Spool]

Fuel cut problem eliminated! Even after i tried to mod the mas it still cut cause the turbo jumps to 20psi so fast that i would have to back off throttle a bit... then it would cut because TPS was sending an non WOT signal. So I, just for shits, pulled off the plug that was over the BOV return on my Dejon inlet neck... and popped on a filter that was in my car when i got it (it was on the BOV). HOLY DOG SHIT! 21psi held till 7500 with full rich signal from the o2 sensor!
Good god ive never felt mad pull like that! MUUUAHAHAHA!
Ill be nice to it though until i get a pyro gauge!

Also... on a sidenote, i picked up a Apexi AVC-D boost controller from Summit Racing. It was a display model, got it for 200$ Im pretty sure i made out! Cept the bastage only has japanese instructions! Dammit!