Throwing CEL's after going cat-less
04-29-2009, 11:28 AM
#1
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Car Info: '06 SGM WRX / 18G (300/291) RIP, '05 TB Evo VIII
Throwing CEL's after going cat-less
I recently just made the switch from high-flow, to catless downpipe. I had been tuned with the cat so I turned down the MBC a little to try to compensate. I was peaking at 19.5psi before. Since the install, I have thrown a CEL the last 3 nights. Code is P2044, Turbo Boost Wastegate Solenoid Range/Performance. Last night I was peaking at 18.1 yet still threw a code. My boost gauge isn't installed so I was using my accessport to read boost. Temps were in the 40's so that may have had something to do with the spike. I'm not going to get re-tuned for this since I have other mods coming up that would require me to do so. I'm going to turn down the MBC even more but is there something else I should do? Hickups at 6k are scary as sheet. Any help would be appreciated. Thanks.
Mods:
18G, perrin tmic & inlet hose, spt intake, titek d/p, greddy evo2, hallman mbc, cobb ap v1
Mods:
18G, perrin tmic & inlet hose, spt intake, titek d/p, greddy evo2, hallman mbc, cobb ap v1
04-29-2009, 07:50 PM
#3
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I'm guessing this is happening in 4th and 5th gears?
05-01-2009, 03:34 PM
#4
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Happened in 3rd gear right around 6k, I'd be going way to fast to find out in 4th and 5th. Turned mbc down a little more and that seems to work for now. Don't really want to pull the mbc and run wastegate boost since I probably won't get tuned for a while. Thanks for the suggestions guys.
05-03-2009, 04:59 PM
#7
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U really need a retune asap before u destroy ur motor. Hit up ed at EQ tuning or Paul at dbtune, they will fix it for u in a jiffy. Cost a pretty penny, but better than new motor or other parts.
05-04-2009, 01:01 PM
#9
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Ed tuned the car originally. I understand that I'm going to boost higher without the cat and that if I turn the mbc down too far I might be hitting different load cells on my map. I just figured since I was tuned conservatively prior with a high flow cat, which titek claims only a 3-5hp loss, I should be ok driving around for a while. I obviously don't want a blown motor but I will be getting tgv deletes and grimmspeed pnp'd exhaust mani soon which would require a whole new tune again.
05-04-2009, 11:47 PM
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Ed tuned the car originally. I understand that I'm going to boost higher without the cat and that if I turn the mbc down too far I might be hitting different load cells on my map. I just figured since I was tuned conservatively prior with a high flow cat, which titek claims only a 3-5hp loss, I should be ok driving around for a while. I obviously don't want a blown motor but I will be getting tgv deletes and grimmspeed pnp'd exhaust mani soon which would require a whole new tune again.
I've got TGV deletes for ya too!
05-05-2009, 07:35 AM
#12
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Car Info: 2008 EVO X/1991 Nissan Skyline GT-R32
without a proper tune, expect to go boom!!
please tune the car so you can enjoy it how it is supposed to be, you will tell a world of difference.
please tune the car so you can enjoy it how it is supposed to be, you will tell a world of difference.
05-22-2009, 07:16 AM
#14
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Just like what everyone else said, dont go tooling around. HOWEVER, if you plan on doing these mods soon dont waste money in a tune right now. Better yet, since you're coming back, ask your tuner for a limp map until you get the parts.
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