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Throwing P0122, P0305, P0449 after NX wet install... lil help?

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Old 08-13-2007, 08:27 PM
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Default Throwing P0122, P0305, P0449 after NX wet install... lil help?

I threw the following codes:

P0122 Throttle Position Sensor low voltage
P0305 couldn't find what that is but I think its misfire on cylinder #5 (which I think I fixed this code but haven't erased it yet because of a spark plug issue)
P0449 Evaporative Emission (EVAP) Vent solenoid control circuit

Now, I tapped the TPS wire for my TPS sensor switch(NX) and that is the reason for the low voltage but why is it lowering the voltage now that I have a switch reading it?

As for the EVAP I don't even know where to begin on what is wrong but is it because the PCM isn't seated correctly? I had to remove it to tap the 10# white tach wire for my RPM window switch (NX) ?

Now I am using either 14 or 16 gauge wire for my nitrous setup, is using this big of a wire stealing the voltage from the wires I tapped, which I are obviously smaller ?? Let me know what you guys think I should do THANKS!!!
Old 08-13-2007, 09:15 PM
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and I should mention that the NX TPS switch is reading the change in voltage on the switch and I was able to set it up... so why is the PCM not getting the signal?
Old 08-13-2007, 10:44 PM
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I'm throwing the same TPS code after my nitrous install. I tapped into the tps wire on the pcm for my window switch.
Old 08-14-2007, 12:34 AM
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you just let your SES light stay on all the time??
Old 08-14-2007, 06:18 PM
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Originally Posted by ChaseSS
you just let your SES light stay on all the time??
It just came on about one week ago. So i went to get it scanned and now i dont know what to do. It runs good still but i hate having the light on. I havent really gotten an answer on here about it.




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