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Alot of problems, (BOV, MBC, Car Idle, Engine Light..)

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DeanCorleone

15+ Year Contributor
44
0
Mar 20, 2004
Frederick, Maryland
... Ok... For the most part I am stock, but where it whats done. (Just done it about 2 days ago)

GReddy Tyoe-S BOV
Hallman Pro Boost controller
Intake filter/adapt
Boost Guage (Autometer)

... Before I put this stuff in my autometer gauge was reading at about 14psi, (would jump to 16 and go back down to 14) ... Now that I my MBC it jumps to 11psi, then goes to 10, and holds alot more stable.. (not the problem)

Heres my first question. Making the GReddy type-s BOV, Softer, or harder? how to tell what you need it at? I have mine set real soft right now I think... I'm abit confused. Someone enlighten me on how to adjust it correctly? (someone already came over and set it for me, but I want to know how the things under my hood are working - I thought I understood for awhile, till I installed it.)

Second question, my boost gauge now reads 10 as I said, and holds there... when I turn the boost up.. nothing happens - runs the same amout of boost (according to my gauge..) and same thing when I turn it down. I have the intake outlite plugs, and the turbo outlibe plugs, I Tee-'d offa the BOV (runs to the manifold line) and ran the MBC to the wastegate. (Sure its hookd up how it should be) ... Whats up? any help?

Third question (heh) ... I installed these parts 2 days ago, like I said before in the post (I think?) and we'll last night, and the night before that - it ran fine. I left the boost conroller alone, and it just ran good (low boost, abit slower then I was used to) But now, I get a check engine light that comes on and off while driving, and the car studders while the light comes up (light doesn't stay on long, maybe 3 ... - 5 seconds each time?) It studders ANY time it likes, wether its in gear in second at 5K, or in 4th at 2K...

ALSO - when I start the car, and don't touch the gas pedal, the car idles at about 800ish like always, then when I touch it (rev it abit) it comes back down to about... 650ish, then falls to even as low as 200... OMG
EVEN if I am not on the gas (like taking a turn or so on) and the engine light comes up for that amount of time, it feels like the car studders back... The light comes on uncommmonly so far as I notcied, I'm replacing the wires, spark plugs, redoing my boost gauage, and (TRIPLE) checking for vaccum leaks.. (I don't think I've gota vac leak...)

Someone is also coming over with a code-checker also, but I also want input from the board, thank you...
 
Also - (even tho no one reply'd yet...) When in second gear, and turning to the left, I get the engine light sometimes, not always, and if I try to get on it when the light comes on, the engine bobs like its about to stall...
 
Second question, my boost gauge now reads 10 as I said, and holds there... when I turn the boost up.. nothing happens - runs the same amout of boost (according to my gauge..) and same thing when I turn it down.

I have the same problem right now, I can't for the life of me figure out why the gauge wont read over 10 psi. if you figure it out please post!
 
Ok replaced the spark plugs, and wires... the car idles ALOT more stable (as I figured.) but I still get the engine light, and the studder once in awhile... outa the blue. Maybe it could be my injectors, I'll try to use some injector cleaner soon to see if it changes the condition of the car at all... couldn't get my buddy to come over today with a pocketlogger to see what really happenin' when this goes on (I have no engine light, but it flashes.) Tomorrow I'll be re-doing my boost gauge, and MBC. Still don't understand how to 'fine' tune the BOV on my car, but its fine right now as is. I am pretty sure that my boost gauge is working just fine, because it reads about 19/20vac while idle, and goes to about 10/11 psi under load in 3rd gear... turnin' the knob on the MBC doesn't change the boost levels at all.. (as it reads atleast)...

Anyways - I wouldn't mind some feedback... anyone?
 
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