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I took off my manifold today to fix my V.R.I.S., one of the vacuum chambers was busted. Anyways, I reinstalled everything and the thing ran like crap. ,pulled the diagnostics out and I got an 8, 10, and 46. I know the 46 is for the vris but I don't know why 8 and 10 would come up. IAT sensor and VAF sensor. They worked absolutely fine before I removed the IM!

Please HELP!

Thanks,

Scot Gomez
 

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I'm currently in the same boat with fixing the VRIS's. Since the IAT and VRF are part of the same module, there's probably a hose or connector somewhere that's not connected to it properly, or some other vacuum hose problem. Double check them all. Check all the other stuff that could make your engine run weak (sparks/wires/anything else you removed) and then run it again. If runs smooth, clear the codes and then check again.

What was your vac chamber problem? I haven't removed my IM yet, and I'm not even sure if my VIRS's work or not, I just know they're not moving. I used a cable tie and tied them open for now until I fix them for real. I'm AMAZED at the difference in power...especially between 4000 - 6000rpm. How did you diagnose your vac chamber problem?

Good luck,
Mike
 
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