11Past9
01-21-2010, 07:35 PM
So I took the car out tonight to run it a bit, roads were dry and I said what the hell.
-Idle is good. And when I am boosting (not foot to the floor full boost) it's smooth.
-When I shift I'm getting a little pop of backfire from the exhaust (isn't that an indicator youre running lean?)
-Full boost, foot to the floor in 2nd or 3rd however the boost is bouncing, as is the air fuel.
It sounds like this: (forgive me for trying to type out the sound)
-Normal = vrooooooooooom psh
-it's doing = vrooooom (til full boost) then it's bouncing between 10-15 psi, the needle is just bouncing between the to and it's "vroom vrooom vrooom" like a hesitation. The air fuel is bouncing too from 10.8-12.2
Once I let off, it runs fine and boosts fine until I actually floor it.
Engine: sr20 blacktop w stock t28
Mods: fmic, exhaust, downpipe, 740cc injectors, z32 mass air flow sensor, hks evc II, aem wideband, walbro 255 fuel pump, koyo radiator.
Now the previous owner said that the EVC II has settings so it won't overboost, hit fuel cut or damage anything.
My guess: too cold out for the boost it was set on, I don't think a boost leak because it would spike and then drop not bounce.
Can someone help me out?
-Idle is good. And when I am boosting (not foot to the floor full boost) it's smooth.
-When I shift I'm getting a little pop of backfire from the exhaust (isn't that an indicator youre running lean?)
-Full boost, foot to the floor in 2nd or 3rd however the boost is bouncing, as is the air fuel.
It sounds like this: (forgive me for trying to type out the sound)
-Normal = vrooooooooooom psh
-it's doing = vrooooom (til full boost) then it's bouncing between 10-15 psi, the needle is just bouncing between the to and it's "vroom vrooom vrooom" like a hesitation. The air fuel is bouncing too from 10.8-12.2
Once I let off, it runs fine and boosts fine until I actually floor it.
Engine: sr20 blacktop w stock t28
Mods: fmic, exhaust, downpipe, 740cc injectors, z32 mass air flow sensor, hks evc II, aem wideband, walbro 255 fuel pump, koyo radiator.
Now the previous owner said that the EVC II has settings so it won't overboost, hit fuel cut or damage anything.
My guess: too cold out for the boost it was set on, I don't think a boost leak because it would spike and then drop not bounce.
Can someone help me out?