Stutter at boost????

[btracer]

just like the title says.. when ever i get on it good the car hits at about 3k and sorta dives in and out of power till i let off. need some help bad, mods are big 16g, 550's, evo VII ecu, 1g head, 264/272, etc. no safc and im wandering if im gettin some sort of fuel cut? holds boost at about 19psi. any help is greatly appreciated!

 

[btracer]

cel's on so tomorrow im gonna go see if i can pull the code

 

[bassamdp]

Yea, please let us know what the fix is.


thank you...

 

[btracer]

im pretty sure if i lower the boost and reset the ecu it'll be ok. i need to get an s-afc and tune the b!tch.... but any advice is greatly appreciated

 

[diambo4life]

1. Pressurize intake (for boost leaks.)
2. Spark plugs (inspect and gap to 0.028")
3. Spark plug wires. <----Culprit most of the times.
4. Coil pack.

 

[diambo4life]

im pretty sure if i lower the boost and reset the ecu it'll be ok. i need to get an s-afc and tune the b!tch.... but any advice is greatly appreciated

Wait a minute, you don't have fuel control with 550cc's? Of course the car is going to stutter from being pig rich once it hits boost.

 

[btracer]

the ecu was flashed and programmed for the injectors but i think runnin 19psi is a lil too much.... tomorrow im goin to replace the plugs, check wires, and do a pressue test. hopefully i can get her back on track

 

[G_S_X]

you still might be WAY Too rich

 

[btracer]

well i got some new plugs, im doin a boost leak test, and i ordered a AFCII last night... hopefully ill get her back on the road. thanks a lot guys, i let you know what fixes it

 

[yugotdonkey]

its actually lean, not rich cus the plugs are all white. i lowered the boost and im doin a boost leak test soon, got new plugs and wires comin plus an AFCII. let you guys know what happens

 

[yugotdonkey]

^^^^^ btw... this is BTracer on yugotdonkeys name ^^^^^