Hey All! Just bought a MY 98 RS2.5 Turbo and I am trying to get it to pass North Carolina Inspection.

I have the following set up:

Minnam Racing Turbo kit with TO4E Garrett Turbo - Stage 2
Top mount intercooler
Atmospheric blow off valve
STI Oil cooler
STI shifter linkage
STI engine\trans mounts
92 Legacy turbo gear set
Borla S.S. Header
3" S.S. exhaust Cat/back
Lightweight Main Pulley
Excedy clutch
Excedy lightweight flywheel
J&S direct ignition system
Mavetech knock sensor
Field SFC hyper fuel controller <- How good is this controller?
STOCK ECU
2.5" down pipe and High-flow cat
K&N air filter
Walbro 255L fuel pump
Greddy turbo timer

The car runs great but I am having problems keeping my check engine light from coming on. When I have the car plugged into a diagnostic machine I find get the following error codes:

108 - Manifold Absolute Pressure/Barometric 11
130 - O2 sen. circuit malfunction

I have taked to some people and I know that I can by pass the O2 Sensors and get that issue resolved, but I have no idea about the MAF fault and how to get that to go away. I do know that I have a "hot-wire" MAF from research I have done.

I have seen discussions on RRFPR's and FTC1's but since I am a total n00b I have no idea what it is people are talking about.

Has anyone out there had experience with a Turbo conversion with a MY98 RS2.5 and has anyone had to deal with the on-board diagnositic testing I am having problems with?

Any help or suggestions would be greatly appreciated!

Thanks!


RS25Tuner

 

do a search for a boost nanny. that should take care of the problem. its a really simple fix.

 

ej25Turbo- I have found that article and I just picked up the parts today. Have you tried this mod before? If so, or if someone you know did the mod, did it work for them?

 

yes it works! basically all it does is prevents the factory map sensor from seeing any boost. tha factory map is designed to read vaccum to 0 PSI, so when it goes into boost the map doesn't understand why there is positive pressure, thus throwing a CEL!