The easiest thing to check would be the idl switch on the TPS. Just pop the connecter and read terminals IDL and E2 with an Ohm meter for continuity at idle. Just read it with the engine off though. If you are reading an open circuit then you will need to see why by first taking off the linkage to the TPS which is how you should read it anywayz and see how that reads.
For a turbo engine it should read continuity until the throttle opens to .9mm on a feeler guage. The feeler guage is checked on the throttle stop and small screw.
The instuctions are on page FI-100 in the TSRM FI section.
You can rule out the NSW if you have a manual transmission Unless you have an automatic trans ECU, then that might be something there.
You didn't mention anything about your A/C so its probably your TPS needing an adjust.
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