TPS and Logger Q's

[TurboDSM86]

according to my SAFC my TPS is only 90% open. i did a search and realize how they read differently and so on. i still want to verify i have a good tps and that it is set correctly. i found a write up on vfaq but do not fully understand it. heres what i comprehend

1) pull throttle body out of car, check resistance between clips 1 and 4. there should be around 5k ohms in closed position

2) next you move the positive to number 2 and leave the neg at number 4. it should read near 900 ohms in that position

3) open up the throttle, at WOT it should stop at 5k ohms.

4) heres where i get confused, this is what vfaq says:

"Loosen the two screws (Phillips screwdriver) and rotate it to set the closed resistance to .9K Ohms (Haynes say 1.1 Ohms but Datalogger rebukes that). The pin resistance will remain about the same "

can someone comprehend that and help me please?


my next question is about my logger. i purchased a palm 105 logger and palm n stein logging software and it worked at first. i stored my car for the majority of winter and now my logger will say "fatal error" when trying to pull codes. it then resets itself. i am not able to log anything or pull codes. how do i delete the software on my palm? i would like to re-instal it since i have the cd's for it still. i couldnt find too much from a search on it.


thanks a lot guys



eric

 

[trevor_shiggs]

i'm not too sure about the TPS but I have been very happy with the MMCD logger software. Its free at this site.

http://mmcdlogger.sourceforge.net/

 

[steve]

Are you working on a 1G or 2G?

The TPS VFAQ you reference is only for a 1G and will leave you with a misadjusted TPS on a 2G.

MMCd only works on OBD I cars (1G).

Steve

 

[TurboDSM86]

i have a 2g. this may sound really really retarded but me and a friend did a 6 bolt swap and i dont know which throttle body i used. i sold the other one on ebay. i belive its the 2g TB. i have the software for it, i just need to know how to delete the program off of my palm so i can re install it.

thanks


eric

 

[trevor_shiggs]

Sorry I always forget to look what year. I think when you are at the home menu where it displays all the programs. click the top left corner where time time is, that will bring down a menu. Click Delete. Then select the program and click delete again. or the sortcut is /D

 

[TurboDSM86]

thanks a lot, i will try that when i get back to my appt.

 

[steve]

i have a 2g. this may sound really really retarded but me and a friend did a 6 bolt swap and i dont know which throttle body i used

The key isn't which TB you used buit which TPS you used.
You should really use a 2G TPS and adjust it according to the 2G specs and avoid rewiring the IPS and figuring out on your own how to adjust everything.

Steve

 

[Deathmug]

I think 1G TPS's have 3 pins & 2Gs have 4. Not sure on that, but I noticed my 2G has 4.
Also, my TPS is opposite to what the guide says. Mine is 4.5K Ohms closed & .5K open.

 

[steve]

Yes, a 1G TPS only has 3 pins. It doesn't have the IPS inside it like the 2G does. That's what comes out on pin 3.
What resistance you measure depends on which pins you use. The pot inside has one end (pin 1) that in the car is connected to +5v and the other end (pin 4) is connected to ground. Pin 2 is the wiper that moves. depending on where it is on the pot gives you different output voltages since it's a variable voltage divider. If you measure the resistance from pin 4 to pin 2 instead of pin 1 to pin 2 you will get reverse numbers.

1G's expect that the TPS voltage with the throttle closed is about 0.5v, 2G's expect that the IPS switch opens shortly after the throttle starts opening and since the IPS is inside the TPS on a 2G it's what is to be adjusted and not the resistance or voltage of the TPS.

Steve