shooter902
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- Jun 21, 2010
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Hey ya..I was having an idle and slight hesitation problem on my 98 so I checked the TPS voltage and found that it was off..Man what a difference a few tenth's of a volt make on these things. It now running great. I couldn't find any real good instructions with GOOD pics and wire layout so I am going to post this and hope that someone else can use it
1. First you will need a Phillips screw driver, either a safety pin or paperclip and a good digital multimeter. You can use the paperclip of you are a little hesitant about pinning your wire..I was not :icon_rr: if you go the paperclip route you can probe it under the TPS connector just above the correct wire (the middle beige wire, At lest it looked beige to me, but I am slightly color blind. But it is the middle wire!)
2. Find the TPS located on the front of the throttle body (see pic below)
3. Find the center beige wire and pin the center of the wire with the safety pin (I like the safety pin because I could rest my +POS probe lead in the center coil of the pin) or use your paperclip and slide it under the connector boot above the center beige wire:
4. Find a good ground to attach the -NEG probe of your Multimeter. I used the ground strap coming off the hood body,as you can see It was great to hold my probe. Or you can use the battery -NEG or any GOOD ground source.
5. I then turned the key to the "On" Position, but don't start the engine and read your volt meter, If it is between .96-.99 your in good shape (So I have been told, and you don't need to touch anything) Mine was not! If yours is not reading between those parameters loosen the 2 Phillips head screws hold the TPS just enough to free it up to move. Then with the throttle closed you want to move the TPS slowly until it reads within the range. I set mine at .98.
6. Once you have the setting within range, tighten down the screws and take a peak @ your voltmeter again to see if it has moved, if so, loosen the screws and try again. Once you have the reading set to the correct voltage, open the the throttle wide open (my reading @ wide open throttle(WOT) was 4.73 Volts) and close it a few times and check the closed reading again to make sure it is in the range. When I was finished I pinched the wires I had probed with my fingers and a slight rolling action to close up the pin holes.
If you did it right, it should drive a lot better, mine did. If you found this helpful or want to add to or think I need to edit something please let me know!!
Peace Out :headbang:
Shooter
1. First you will need a Phillips screw driver, either a safety pin or paperclip and a good digital multimeter. You can use the paperclip of you are a little hesitant about pinning your wire..I was not :icon_rr: if you go the paperclip route you can probe it under the TPS connector just above the correct wire (the middle beige wire, At lest it looked beige to me, but I am slightly color blind. But it is the middle wire!)
2. Find the TPS located on the front of the throttle body (see pic below)
3. Find the center beige wire and pin the center of the wire with the safety pin (I like the safety pin because I could rest my +POS probe lead in the center coil of the pin) or use your paperclip and slide it under the connector boot above the center beige wire:
4. Find a good ground to attach the -NEG probe of your Multimeter. I used the ground strap coming off the hood body,as you can see It was great to hold my probe. Or you can use the battery -NEG or any GOOD ground source.
5. I then turned the key to the "On" Position, but don't start the engine and read your volt meter, If it is between .96-.99 your in good shape (So I have been told, and you don't need to touch anything) Mine was not! If yours is not reading between those parameters loosen the 2 Phillips head screws hold the TPS just enough to free it up to move. Then with the throttle closed you want to move the TPS slowly until it reads within the range. I set mine at .98.
6. Once you have the setting within range, tighten down the screws and take a peak @ your voltmeter again to see if it has moved, if so, loosen the screws and try again. Once you have the reading set to the correct voltage, open the the throttle wide open (my reading @ wide open throttle(WOT) was 4.73 Volts) and close it a few times and check the closed reading again to make sure it is in the range. When I was finished I pinched the wires I had probed with my fingers and a slight rolling action to close up the pin holes.
If you did it right, it should drive a lot better, mine did. If you found this helpful or want to add to or think I need to edit something please let me know!!
Peace Out :headbang:
Shooter
I'll just pull it down! I pulled the IAC off and replaced the gasket at the same time..maybe that is what made the diff?? All that work for nothing..Sigh...Thanks for setting the record straight SN95 
