throttle Positioning Switch..any experiance?

joel w · 05-21-2006, 03:35 PM

Check your codes. If the diag jumper is installed, you will get a code 51 if either the throttle is depresses slightly, the AC switch is on or the car is out of park or nuetral/clutch in.. Each can be tested individually.

If your car is throwing a code 51 (Open idle contacts) and your not pressing the gas, the AC is off and the car is in park, then you need to adjust your TPS as per TSRM page FI-103. code 51 can cause stumbling and high idle problems.

Sidenote:You can also unplug the TPS and the car will run and drive fine as a test only...

Once the TPS is set, Then reset your timing to 10 degs like the TSRM says and let us know..

A code 41 means it is time for a new TPS as the other half of the tps is bad, The pot side that measures where your throttle position is at goes bad.

05-21-2006, 03:35 PM	#4
joel w Lexus & 550's Join Date: Aug 2005 Location: In the shadows Posts: 506	Check your codes. If the diag jumper is installed, you will get a code 51 if either the throttle is depresses slightly, the AC switch is on or the car is out of park or nuetral/clutch in.. Each can be tested individually. If your car is throwing a code 51 (Open idle contacts) and your not pressing the gas, the AC is off and the car is in park, then you need to adjust your TPS as per TSRM page FI-103. code 51 can cause stumbling and high idle problems. Sidenote:You can also unplug the TPS and the car will run and drive fine as a test only... Once the TPS is set, Then reset your timing to 10 degs like the TSRM says and let us know.. A code 41 means it is time for a new TPS as the other half of the tps is bad, The pot side that measures where your throttle position is at goes bad. Last edited by joel williams; 05-21-2006 at 03:51 PM.