How to adjust TPS???

Dark_5.0 · 04-02-2002, 12:50 AM

My idle still surges a lil' bit I think I could probanly tune it out by messing with the TPS. What do I need to adjust it and how do I do it??

Thanks,

ultraflo · 04-02-2002, 01:14 AM

Get a voltmeter and set the accuracy to .001v

Pierce the black and green wires coming out of the tps.

Turn the key to the on position, but do not start it...
Get a reading with the throttle blade closed (usually anywhere between .600-1.200v)

For best performance it should be adjusted to .980-.990

To adjust it, loosen the two screws and rotate the sensor until you get it in the right range (you might have to remove it and "waller" out the mounting holes with a file to get it in the right range)...

Tighten the screws and recheck your voltage...

PKRWUD · 04-02-2002, 01:14 AM

Either by back probing the connector, or by piercing the wires with a small safety pin, attach a DMM pos lead to the green wire, and the neg lead to the black wire. Turn key on, but do not start the engine. At closed throttle, the DMM (set to VDC 10 scale) should read below 1 vdc. Rotate the throttle to WOT, slowly, and see that the voltage increases smoothly. At WOT, it must be more than 4.5vdc. To adjust the setting, loosen the two bolts that secure the TPS, and try moving it. The optimum setting at idle is .95 vdc. If your reading is way off, and you cant move the TPS enough to get within range, remove the TPS and try elongating the holes with a rat-tail file.

Take care,
-Chris

04-02-2002, 12:50 AM	#1
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	How to adjust TPS??? My idle still surges a lil' bit I think I could probanly tune it out by messing with the TPS. What do I need to adjust it and how do I do it?? Thanks, __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

04-02-2002, 01:14 AM	#2
ultraflo NX dealer-man Join Date: Sep 1998 Location: Peoria, Illinois Posts: 977	Get a voltmeter and set the accuracy to .001v Pierce the black and green wires coming out of the tps. Turn the key to the on position, but do not start it... Get a reading with the throttle blade closed (usually anywhere between .600-1.200v) For best performance it should be adjusted to .980-.990 To adjust it, loosen the two screws and rotate the sensor until you get it in the right range (you might have to remove it and "waller" out the mounting holes with a file to get it in the right range)... Tighten the screws and recheck your voltage... __________________ RLS Racing! 93 LX 9.20 @ 147mph 03 Mach 1 12.39 @ 116mph

04-02-2002, 01:14 AM	#3
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	Either by back probing the connector, or by piercing the wires with a small safety pin, attach a DMM pos lead to the green wire, and the neg lead to the black wire. Turn key on, but do not start the engine. At closed throttle, the DMM (set to VDC 10 scale) should read below 1 vdc. Rotate the throttle to WOT, slowly, and see that the voltage increases smoothly. At WOT, it must be more than 4.5vdc. To adjust the setting, loosen the two bolts that secure the TPS, and try moving it. The optimum setting at idle is .95 vdc. If your reading is way off, and you cant move the TPS enough to get within range, remove the TPS and try elongating the holes with a rat-tail file. Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

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