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It is the stock unit. I believe the module is shot behind the passenger tail lights.
when I purchased the car, one butterfly was wide open an the other Butterfly was half way open, 10amp fuse is good. But the butterfly's won't work. all lines seem fine
For now I did take a screw driver an opened them manually
It is the stock unit. I believe the module is shot behind the passenger tail lights.
when I purchased the car, one butterfly was wide open an the other Butterfly was half way open, 10amp fuse is good. But the butterfly's won't work. all lines seem fine
For now I did take a screw driver an opened them manually
You may have a "mechanical " issue with the butterfly valve sticking. "Module" implies an electronic issue. If one side is working, that is not your issue. NPP valve actuation is controlled by the PCM (main engine computer - I think that's the right name for it). Either way, your issue is mechanical / pneumatic. Not a computer/ module.
Last edited by need-for-speed; 08-30-2014 at 01:54 AM.
sorry for the confusion, both sides do not function at all, one just happen to be stuck wide open wail the other butterfly was just stuck half way open. as of rite now I opened both butterfly's so they get equal pressure
hmm I thought it was number 21 in the diagram. I think I might just leave it, it could be a vaccum line to the front of the car, I do know the passenger side skirt was repainted, so maybe they pinched a line doing that
sorry for the confusion, both sides do not function at all, one just happen to be stuck wide open wail the other butterfly was just stuck half way open. as of rite now I opened both butterfly's so they get equal pressure
ah, that makes more sense. vacumn leak is the most probable. Hopefully soneone who knows how to trouble shoot it will chime in.
One option would be to find the soleniod up front that switches the vacuum on and off. Apply vacuum there (you can buy vac hand pump at auto parts for $15 +/-). If it closes your valves, you'll know the lines from front to back are good and can focus under the hood.
If that doesn't work, you may get lucky by searching, maybe even on google if you don't find it here. Sorry, I'm not more help. I havent had to work on mine (yet) so I don't know more than that.
08-29-2014, 01:55 PM
NPP Module - Good or bad?
This system is way over-complicated...
