TPS Setup

[LH16v]

Hi,

Does anyone know how to setup a throttle position sensor on a R19 16v F7P engine?

I had to get a replacement for mine as the old one was causing the engine to misfire. I have got a replacement sensor and the misfire has gone away however the engine idle speed is higher than before and acceleration isnt quite as good as it was before. Anyone know how I can set the TPS correctly?

 

[R0L0]

Do a search for TPS. There's a thread Reno5gtt posted and some info there on how to setup. Also while your there look at the 'pinout data' thread or look in the tech section.

 

[Reno5gtt]

http://www.retro-renault.com/forums/tech-questions/17129-f7p-pinout-data.html

for pin data

http://www.retro-renault.com/forums/tech-questions/19700-how-set-up-19-16v-throttle-body-tps.html

for set up

Hope this helps

 

[Reno5gtt]

Do a search for TPS. There's a thread Reno5gtt posted and some info there on how to setup. Also while your there look at the 'pinout data' thread or look in the tech section.

 

[minichapperz]

BrownNose.Com lol

 

[LH16v]

Thanks for the replies. I have measured the voltage before so that is not a problem.

What I was more specifically after is how to ensure that it is the correct voltage. Should I take the whole throttle body off? How can I adjust the sensor? Are there any tricks to getting the sensor in the correct position?

 

[Reno5gtt]

BrownNose.Com lol

 

[Reno5gtt]

Thanks for the replies. I have measured the voltage before so that is not a problem.

What I was more specifically after is how to ensure that it is the correct voltage. Should I take the whole throttle body off? How can I adjust the sensor? Are there any tricks to getting the sensor in the correct position?

I used a multimeter and and measured the current between the two outside wires on the TPS sensor (live and earth I imagine). When you loosen the TPS itself and you move it from side to side in place the voltage on the multimeter will change. What you are trying to do is adjust the TPS sensor to 0.20v when the throttlebody is fully closed so put on the multimeter but don't touch/move the butterfly at this point. Once you have 0.20v on your multimeter in the closed throttle body position tighten the screws back up on the TPS. Keep the multimeter on the wires at this point as you have been doing but now open the butterfly slowly by hand and the reading should change on the display, you will be looking at 4.7v when the throttlebody is fully open.

I was getting 4.3v when my TPS was in the fully open position once the it had been set at 0.20v in the closed position and had to file a little bit off my throttlebody stop to gain an extra 0.4v.

As for the ECU reading I wedged 2 small peice's of wire from the correct pins on the ECU (TPS live and ECU earth) and repeted the process with the multimeter.

 

[LH16v]

I used a multimeter and and measured the current between the two outside wires on the TPS sensor (live and earth I imagine). When you loosen the TPS itself and you move it from side to side in place the voltage on the multimeter will change. What you are trying to do is adjust the TPS sensor to 0.20v when the throttlebody is fully closed so put on the multimeter but don't touch/move the butterfly at this point. Once you have 0.20v on your multimeter in the closed throttle body position tighten the screws back up on the TPS. Keep the multimeter on the wires at this point as you have been doing but now open the butterfly slowly by hand and the reading should change on the display, you will be looking at 0.47v when the throttlebody is fully open.

I was getting 0.43v when my TPS was in the fully open position once the it had been set at 0.20v in the closed position and had to file a little bit off my throttlebody stop to gain an extra 0.04v.

As for the ECU reading I wedged 2 small peice's of wire from the correct pins on the ECU (TPS live and ECU earth) and repeted the process with the multimeter.

Great, thanks for the reply. Really useful information. I will give it a go but it sounds delicate!

 

[Reno5gtt]

Great, thanks for the reply. Really useful information. I will give it a go but it sounds delicate!

No problem mate, let us know how you get on and if you get stuck i'm sure we can help you out.

 

[hooverphonique]

open the butterfly slowly by hand and the reading should change on the display, you will be looking at 0.47v when the throttlebody is fully open.

don't you mean 4.7V, mate?

 

[Reno5gtt]

don't you mean 4.7V, mate?

Yes mate thats the one

 

[Chunk]

All I did with mine was run the engine with it plugged in and loose, and gently adjust the TPS until the engine idles correctly.

I found with it twisted too far, it would idle too high, so I tweaked it until we had a nice 900rpm when warm and all has been well since then

 

[LH16v]

Had a look at it today but didnt really get anywhere. The replacement TPS that I have came from a scrap yard so I think that I will probably try to source a new one.

All I did with mine was run the engine with it plugged in and loose, and gently adjust the TPS until the engine idles correctly.

I found with it twisted too far, it would idle too high, so I tweaked it until we had a nice 900rpm when warm and all has been well since then

Thanks. I might try this as I have to take the car for the equivilant of the MOT/NCT test and as the engine is currently idiling around 1.7k RPM it will probably fail the test.