First, when I installed my BOV, the car would sometimes stall out at high rpms between shifts, sometimes for no reason whatsoever. Its a recirculating HKS Super-Sequential. At the same time I also installed my 3" exhaust, and started shooting fireballs (no fire with the catless midpipe and stock exhaust). Car would also sometimes stall under hard acceleration, braking, or turning.

Now, after a while, my CEL came on and the car seemed to calm down, though sometimes I'd still get the stall between high rpm shifts OR I'd get a thing where, for example, 3rd-4th I'd shift and then it wouldn't let me rev past 7000 rpm.

Recently I had to bring my car in for the fuel tank and steering recalls, they reset my ECU I'm guessing cuz the CEL is off. Driving home, the car kept stalling ALL the time. That went away, sort of, but when I got on a straight and tried to punch it to see what would happen, the car built boost VERY fast, had tons of power to about 4000 rpm and then just died like the ECU was saying, ok fun time over.

Mods are in my signature - anybody have any of these problems or any ideas what's causing them? My techs think it might be the BOV sticking open.

 

Sounds familiar.

Do you know what code you're throwing to get that CEL?

You've been 'R' flashed, so that is bad news with the eManage.

I was having stalling problems & a CEL. The CEL was caused by a bad front O2 sensor. It was bad because the morons at ProStreet, pox be upon them, cut my O2 sensor line then spliced it back together wrong. They also totally buggered up the vacuum hose connections.

After I replaced my front O2 sensor and fixed the vacuum hose routing, the stalling problem went away. Since I did both at the same time, I don't know which (or both) fixed the stalling problem.

I also have the SSQV, and ProStreet & GREddy both tried to blame it on that. They were wrong.

Who did your install?

 

Agile Auto in Maryland did my install. They're pretty solid guys.

I don't know if I've been R Flashed or not. I know I got a reflash sometime last spring.

I don't know what code the CEL is throwing, because the CEL went off when we reset the ECU.

Could part of the issue be running no cat?

 

Fuel tank recall involves updating the pcm to R flash, unless you told them specifically not to do it.

 

ok . . .

a few more thoughts . . . .

first, the car ran fine with just the catless midpipe and stock exhaust, no BOV, so I'm gonna rule that out even though it threw a CEL after a couple weeks.

second, the car ran the same once we added the custom exhaust, it just shot fire, but still none of the stalling issues

finally, with the installation of the BOV and a second muffler to quiet down the custom exhaust, that's when the car started acting stupid

now that I got it back after the recall, the car has been acting WAY worse, right after I got it back is when I got the constant stalls and the power cut after about 4000 rpm . . . .

so that means it could be both the BOV AND the reflash

how do I get rid of the r flash? and what does the r flash do?

 

you cant get rid of the rflash. it does lots of stuff, the main one is keeping the gas tank from melting.

i think your issue is you need the new greedy map for the r flash.

beers

 

how do I get a new GReddy map?

also . . . I melted a coil pack installing the e-manage ignition harness (we removed it) - the car kinda feels like it did right before the pack melted - could I still have damaged coil packs which would have been causing the stalling both before and after the flash, or could the r flash be melting my packs now?

 

talked to my tech at mazda
said he can't give me the M flash back because the R flash is needed for safety

he said he thinks I should replace the o2 sensor and get the car retuned for the R flash.

 

Second that! I´m having the R and stalling problems....

 

fouled plugs from being over rich.

 

ya think? I have 1-step colder plugs that I put in when I first installed the turbo, but I also have the stock plugs in the glove box . . . worth a shot?

 

You can clean off the fouled ones with a wire brush. I did that a while ago and noticed a significant improvement in power for a while, then it went back. Hopefully once I get the Interceptor dialed in that'll fix it.

 

ok but how do the fouled plugs relate to the car stalling every second?
and its not a little loss in power - its like, when the car hits full boost, the computer cuts ALL timing as if its trying to save the engine from catastrophic detonation.