Throttle Pos. Sensor ??

[secretsquirrel]

Can Some One Tell Me How To Set That Sensor And How May Volts It Sposed To Be

 

[steve]

If you have a 2g with a 4G63.

http://dsmtuners.com/forums/showthread.php?t=79304&highlight=2g*+TPS

The output voltage for a 2G 4G63 TPS can range anywhere from 0.4v to 1v and be good. It's setting the Idle Position Switch that is critical. Whatever TPS voltage you get when the IPS is set right is OK as long as it's in that range.

If you have a 420a someone else will have to help you. I don't speak 420a.

Steve

 

[1fast97gsx]

ok so then how do you properly set the ips? The bolt was totally missing on my t/b so I got a new one but I'm not sure as to how far to screw it in. I'm assuming just until it touches and then 1 more turn to open the butterfly just a tad?

 

[steve]

If you have to reset the Fixed SAS you want to make sure the TB closes all the way, turn the screw intil it first touches the throttle lever and then 1 and 1/4 turn farther. Then reset the IPS.

Steve

 

[steve]

Reposted to make it clearer.

2G's critical TPS adjustment is the Idle Position Switch that's part of the TPS.
(2G TPS pins are 1- 5v, 2- TPS output, 3- IPS output, 4-ground)

You place a .177" feeler guage between the stop screw (fixed SAS) and the throttle pulley to open the butterfly and then adjust the TPS right to the point where the IPS (pins 3 and 4 on the TPS) switches from closed (0 ohms) to open (infinite ohms). Then you verify that the TPS (pin 2 and 4) reads between 0.4 and 1V while the feeler guage is still in place. Anything in that range is ok as long as the IPS is adjusted correctly. It it's not correct you need to check that pin 1 is about 5v and pin 4 is grounded. If they are correct then the TPS is bad.

There is no way to adjust the TPS voltage independantly of the IPS on a 2G. Trying to correctly set a 2G TPS by voltage will only work by dumb luck.

A P0170 Fuel Trim Malfunction is thrown when the ECU fuel compensation value goes out of range high or low. Listed causes are MAF failure, Injector failure, bad fuel pressure, vacuum leaks, O2 sensor failure, Engine Coolant Temp sensor failure, Exhaust leaks.

Steve