Hey guys, I just installed my Megan 02 housing and my 255 walbro fuel pump today. I took it out after and noticed my boost is hitting 25 and holding 22. Is that normal? Also im running very rich. At idle im at 12.6 12.7. Before i installed these parts i was at 14.8 14.9. When i floored it, it bucks after 5000rpm. What can be causing this? Im getting my profec b put in 2morrow and im going to Sean ivey Next week. What do you guys think?

 

thats pretty much exactly what my friend had happen...he just put the stock o2 housing back in and its been good ever since

 

wow thats interesting... why are u runnin soo rich?? do u tune urself? i have those mods and that didn't happen...

 

I dont tune the car myself. Im going to ivey next week for a tune. i dont know why im running so rich tho. My front 02 sensor is stripped out and i need to get a new one. ANyone know some1 selling one? Other then that i dont know what i can do to fix this.

 

get tuned......

 

+1

And if you can, turn that boost down! No reason to run 25PSI, so either get an MBC or baby the car until you get a tune. O2 housings will cause boost creep, but that doesn't explain the AFRs, but ohh well. The tune will definitely help drivability and actually make some power with your new parts.

 

I've experience the same thing when I installed my o2 housing. I'm getting tuned really really soon.

 

weird

 

Did you damage the o2 sensor when you moved it to the new housing? The car should idle at 14.7 when in closed loop mode. The buck at 5K could be you hitting fuel cut due to creep induced by the o2 housing. 25psi is too much boost untuned.

 

It was the fron 02 sensor. I replaced it and a/f is back to normal. Thanks all

 

I think a tune will fix things.