I have a 1999 Honda Accord with a 2000 Honda accord Vtec f23 engine in it. Here's the thing every time i shift into neutral it revs up to about 3000 rpm and stays there until I come to a complete stop which then the revs go to about 900. No matter how slow I move it would stay at 3000 rpm. I had the car scanned at the shop I work at and found that it needed an 02 sensor and replace the air valve control unit (part number AC4072). Took care of them and the idle is better but it still revs up. While the valve was being replace we notice that the throttle position sensor was damaged. After searching forever i found one web site(octane motorsports.com) that sold the sensor separately for 39.99. So my question is: is buying the sensor separately okay
if this doesn't fix the revving, what should i do?
it also has a wrong cold air intake so could that effect it?
PLEASE HELP!!!!!

 

You should test the TPS first before buying anything.



How to Test:
1. Plug the TPS harness into the new TPS.
2. You'll see three wires exiting the cars wiring harness that you just plugged into the TPS. Take a paperclip, straighten out half of it, and shove it into where the middle wire exits the harness. You'll feel it when the paperclip touches metal.
3. Hook up your mulimeter test leads - nice if you have alligator clips, positive to the paperclip, negative to any ground in the engine bay. Set your multimeter to the 20V position.
4. Turn you ignition key to the Acc position. Do not turn on the car.
5. Go back and check your mulitmeter. You should be seeing something in the range of .5V give or take a few tenths.
6. Now adjust - first, turn the throttle by hand to the WOT position. While holding it there, turn the TPS until you get a reading of 4.5V. This is your target reading for WOT. Let go of the throttle and let it go to full closed. You should see something around .5V. The specified range in the Honda manual is .5V closed and 4.5V WOT.