I have a problem here. The idle jumps around for one minute then it becomes stable. Go out and boost as soon as I downshift no fuel? car cuts off and when I press the gas pedal the car goes no where. What could be the problem?

 

maybe could be mass air flow sensor related also

 

vaccuum leak...i had that problem...smooth until i got on the accellerator a bit and it sucked air and nearly stalled out...

 

Fixed the vaccum leak, switched out the walbro to the original pump + the aux pump, won't rev above 2k and starts bucking? Popped the hood and the vaccum was at 14, and we unplugged the MAF and it jumped to 20. Could the MAF be whats causing all these problems?

 

If it WON'T rev above 200, MAF is the problem.

Unplug the maf and try revving it.

 

Problem fixed his boosting as we speak

 

what did the problem turn out being

 

I don't know if he wants to have people find out what the "problem" was...lets say it involves packing/shipping Peanuts and a MAF

 

Ah, yes styrafoam peanuts inside of piping. Spent well over an hour carefully examining every single pipe on Shadow's car b/c the thought of the MAF getting clogged w/ peanuts gave me nightmares. Never did check Sadler's car...but I figure all that chroming probably took care of it.

BTW, those things shrink like crazy if they catch on fire. I found all these miniature peanuts next to my chop saw.

 

hahaha

shouldnt the screen not allow the peanuts past the MAF

 

it didn't, but it blocked it up so there was little to no airflow which explained the bucking when i stepped on the gas. Now everything is good and boy is that BOV loud!

 

still confused why that BOV is so loud in your car and it was not that loud in my car, Enjoy

 

Thanks Jay!