pweizman
15+ Year Contributor
- 34
- 0
- Feb 21, 2005
-
Cincy,
Ohio
1991 Tsi Awd 5 speed
I just installed an Ebay MBC, and now I can't get the car to boost right. No matter which way I turn the adjustment bolt...all the way in, or all the way out, the boost shoots past 15 and the car stutters really bad. It just falls on its face.
When I take the MBC out of the loop, and hook the wastegate straight to the hard pipe coming out of the turbo going to the intercooler, the car runs solid (9-10 PSI at WOT) no stuttering.
Mods are: 2.5" BR Crush bent downpipe, high flow cat, and cat back. 14B stock turbo, stock exhaust manifold.
I think the MAF was hacked by the previous owner..and the a K&N is bolted to it.
I searched, but this seems weird that no matter which way I turn the MBC, I get skyrocketing boost.
The MBC is just a ball and spring, and seems to be fine...??
Boost leak somewhere? I triple checked my hookup. I had the one end "T'ed" into the line from the BOV to the IM, and the other end going to the wastegage.
Any suggestions would rock.
Thanks,
Patrick
I just installed an Ebay MBC, and now I can't get the car to boost right. No matter which way I turn the adjustment bolt...all the way in, or all the way out, the boost shoots past 15 and the car stutters really bad. It just falls on its face.
When I take the MBC out of the loop, and hook the wastegate straight to the hard pipe coming out of the turbo going to the intercooler, the car runs solid (9-10 PSI at WOT) no stuttering.
Mods are: 2.5" BR Crush bent downpipe, high flow cat, and cat back. 14B stock turbo, stock exhaust manifold.
I think the MAF was hacked by the previous owner..and the a K&N is bolted to it.
I searched, but this seems weird that no matter which way I turn the MBC, I get skyrocketing boost.
The MBC is just a ball and spring, and seems to be fine...??
Boost leak somewhere? I triple checked my hookup. I had the one end "T'ed" into the line from the BOV to the IM, and the other end going to the wastegage.
Any suggestions would rock.
Thanks,
Patrick