TPS installation

[jasonb]

Hi All,

Just wondering if anyone is able to advise if there is any special installation required for a TPS on a VR 5 litre, or if you just bolt it straight on.

kinda getting the shits with this thing and its the only thing I can think of.

Thanks

[Pub247]

pretty much just bolt on well screw on

[baza]

be carefull because there is a plastic fitting that goes between the TPS and the throttle butterfly shaft. dont lose it , and when you take off the tps thats on ya car now see whitch way the tps moves when you take out the 2 screws, clockwise or anticlockwise as it is under tension or preload . put the new one on the same way. if the tps on the car now is not working properly ya better have a look at a commodore workshop manual to find the correct way to install it. hope this helps you....

[delcowizzid]

should be 0.5volts output when throttle is closed use a multimeter or aldl cable and laptop to set it up if nessecary

[jasonb]

be carefull because there is a plastic fitting that goes between the TPS and the throttle butterfly shaft. dont lose it , and when you take off the tps thats on ya car now see whitch way the tps moves when you take out the 2 screws, clockwise or anticlockwise as it is under tension or preload . put the new one on the same way. if the tps on the car now is not working properly ya better have a look at a commodore workshop manual to find the correct way to install it. hope this helps you....

When I took the old TPS off, there was nothing there besides a washer and a spring. Am I missing something?

[jasonb]

should be 0.5volts output when throttle is closed use a multimeter or aldl cable and laptop to set it up if nessecary

I've hooked a multimeter up and am getting .05 volts at idle and it goes up when throttle is used. It still gives error code 22.

Does anyone know what the standard PCM in the VR V8 berlina was??

[delcowizzid]

should be 0.5 volts not 0.05 do you have 5.0 volts on the power feed wire too the tps or is it low too

[delcowizzid]

auto or manual they both have different ecu's

[delcowizzid]

and did you reset the ecu to clear the old tps code

[jasonb]

Checked the feed wire and it has 5.01 volts.

It is an auto. Only reason I ask, is that I pulled out the PCM and on it, it says "Retro - fitted by HSV", its a sticker that has been put over the original, so I'm a bit confused with that.

I havent reset the ecu no, didnt think I needed to. I will try that and see how we go.

[delcowizzid]

yip if its had power on the whole time you were changing the tps from the old one the code will still be in the ecu till power is dissconnected at batterey

[Cheap6]

When I took the old TPS off, there was nothing there besides a washer and a spring. Am I missing something?

If the TPS voltage is changing, no. Not all throttle bodies have the adaptor piece.

[jasonb]

Dont know if this has anything to do with it but thought I would mention it. I have found out, from doing some research on it, that the PCM is the HSV 185kw Auto one. Are there any differences between the normal v8 and the 185kw TPS? Probably not but thought it's worth asking. lol.

[delcowizzid]

nah no different did you try reset the ecu yet

[jasonb]

hahaha, gotta charge the battery, she went flat

[delcowizzid]

bummer LOL

[baza]

my 5 litre vr stato has the adaptor , i know because when i cleaned my throttlebody i removed the TPS and the IAC . have you checked for fault codes? i think 22 is one . a new TPS is around $30. faulty TPS and its electrical plug should put up a fault code . hope ya sort it out.......

[baza]

sorry jasonb i didnt read all the above replies properly, you obviously know about fault codes. anyway , reset ya computer. are you sure you dont have the adaptor, it should sit on end of throttle butterfly shaft and the TPS fits onto the adaptor , it slots into it when you turn it to line up the screw holes on TPS to the screwholes on the throttlebody. if the TPS and adaptor dont engage to the throttle shaft the sensor wont send info to the ECU . you might be better off removing the throttlebody so you can check it out easier. hope all this helps ya........

[jasonb]

sorry jasonb i didnt read all the above replies properly, you obviously know about fault codes. anyway , reset ya computer. are you sure you dont have the adaptor, it should sit on end of throttle butterfly shaft and the TPS fits onto the adaptor , it slots into it when you turn it to line up the screw holes on TPS to the screwholes on the throttlebody. if the TPS and adaptor dont engage to the throttle shaft the sensor wont send info to the ECU . you might be better off removing the throttlebody so you can check it out easier. hope all this helps ya........

Hey baza, I take the tps off the throttle body and all i have is an adaptor that is shaped like a flat head screwdriver. Theres nothing else there, is that what you were referring to??

I have also reset my computer and just charged the battery, she still producing the 22 code. Im about ready to try the big hammer resolution, lol. Any help would greatly be appreciated

[delcowizzid]

maybe the tps has been turned before you got it and is half a turn out if you still only get 0.05volts out with the multimeter on 20 volts dc carefully turn it the way the throttle would turn it when opening and see if it goes upto .50 and still has norkmal amount of travel to get to full throttle

[jasonb]

maybe the tps has been turned before you got it and is half a turn out if you still only get 0.05volts out with the multimeter on 20 volts dc carefully turn it the way the throttle would turn it when opening and see if it goes upto .50 and still has norkmal amount of travel to get to full throttle

Alrighty, I just put a pin through the wire and hooked the mutlitmeter on it. At idle it has .01 volt. I turn the throttle body and it increases. I've obviously done something wrong, lol.

[jasonb]

does anyone have a copy of a service manual?

[baza]

i am quoting from a vs v6 Gregorys manual, the TPS on the v6 is identical. " 1. ensure that the drive adaptor is correctly located in the throttle shaft prior to installing the TPSensor. 2. with the throttle valve fully closed , install the TPS onto the throttle shaft adaptor at a position 30 degrees clockwise past the TPSensor retaining screw holes in the throttlebody. 3. align the holes in the TPSensor with those in the throttlebody, install the retaining screws and tighten securely. " i am fairly certain that you must have a plastic adaptor that slips onto the end of the throttle shaft, my vr stato 5 liter definately did have it. hope you can sort it out......

[jasonb]

i am quoting from a vs v6 Gregorys manual, the TPS on the v6 is identical. " 1. ensure that the drive adaptor is correctly located in the throttle shaft prior to installing the TPSensor. 2. with the throttle valve fully closed , install the TPS onto the throttle shaft adaptor at a position 30 degrees clockwise past the TPSensor retaining screw holes in the throttlebody. 3. align the holes in the TPSensor with those in the throttlebody, install the retaining screws and tighten securely. " i am fairly certain that you must have a plastic adaptor that slips onto the end of the throttle shaft, my vr stato 5 liter definately did have it. hope you can sort it out......

Hmmm, the thing that im confused about is how you place the tps at a 30 degree angle against the throttle body. If i turn it at a 30 degree angle it doesnt catch if you know what i mean. If I leave the tps 30 degrees and turn the throttle, it wont start taking until ive reached that 30 degrees.

I hope that makes sense, if it doesnt please let me know and I will try and explain more clearer.

[Helicopter]

OK, back to basics.

BTW, the engine dosen't have to be working, just ignition to the ON position.

Butterfly fully closed - TPS reading should be close to 1.25V.
Now begin to open the buterfly and the voltage should immediately start to rise above 1.25V, and with the butterfly fully open it should read around 5V.

There should be little if no freeplay between the butterfly shaft and TPS sensor.

Are these your readings?

Anyway check out the attached from the VR service manual.