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throttle position sensor

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Old 06-01-2011, 06:43 PM
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throttle position sensor

hi everybody...


my service engine soon light came on and code reader is saying it's TPS,so i'd like to know where is it exactly located...is it on the tb or somewhere else...
i took of my tb and cleaned it with tb cleaner as i was advised but nothing happened... so if anyone knows anything about this or how to fix it please let me know...right now when i step on my gas pedal nothing's going on
it's 2004 g35 coupe


thanx
Old 06-01-2011, 07:07 PM
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tire pressure sensor..?
Old 06-01-2011, 08:28 PM
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Throttle Position Sensor is on the throttle body. Assuming you got A P0120-P0122 code you probably moved the throttle valve during cleaning and lost the settings that the ecu was expecting when you went to start back up. You can reset and restore these settings that the ECU needs for control. See the attached. Timing throughout the included steps is critical to make it work.
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File Type: pdf DIY ECU Reset Technosquare.pdf (68.6 KB, 3550 views)
Old 06-01-2011, 08:33 PM
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It's part of the throttle body. The factory service manual tells you how to check it. You should also try the relearn procedures.

Also, there's an accelerator pedal position sensor connected to the accelerator pedal...not sure if that could also cause your problem.
Old 06-01-2011, 10:17 PM
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(posted this in your other thread as well)

I'm having a similar problem.

car starts and idles at around 1000rpm

no throttle response

error codes show bad throttle sensor... tried a new one... same problem..

tried a new throttle body... same problem...
Old 06-01-2011, 10:28 PM
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I have the same problem but my car idles normal just throttle sucks ( replaced TB )
Old 06-01-2011, 10:41 PM
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Quote:
Originally Posted by LMG_35C View Post
Throttle Position Sensor is on the throttle body. Assuming you got A P0120-P0122 code you probably moved the throttle valve during cleaning and lost the settings that the ecu was expecting when you went to start back up. You can reset and restore these settings that the ECU needs for control. See the attached. Timing throughout the included steps is critical to make it work.
this happened before i even cleaned my tb...1st time it happened 2-3 years ago just before i've stored my car for winter and then in spring time check engine light was gone and it was ok for couple of years...and same thing happened last winter and then it was fine when i took it out of storage but now it's happening again...i don't mind changing my tb or just the sensor but i wanna know what it is before i buy anything...
i'll try to restore the settings and will let you know...

thanx for your time and help
Old 06-01-2011, 10:44 PM
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thanx for all the info guys, really appreciate your help...
Old 06-02-2011, 06:04 AM
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Quote:
Originally Posted by miconi View Post
this happened before i even cleaned my tb...1st time it happened 2-3 years ago just before i've stored my car for winter and then in spring time check engine light was gone and it was ok for couple of years...and same thing happened last winter and then it was fine when i took it out of storage but now it's happening again...i don't mind changing my tb or just the sensor but i wanna know what it is before i buy anything...
i'll try to restore the settings and will let you know...

thanx for your time and help
sounds more like a weak electrical connection or signal rather than a sensor itself, but the seasonal aspect is almost the reverse of what I would expect.

checking the sensor voltage & resistance isn't that hard but you need to locate a shop manual. It will at least allow you to isolate the issue rather than throw parts at it...but sometimes that's easier when it comes to electrical problems .

If you can't find the reference here or on 350Z site, look over on the NICO site.
Old 06-27-2011, 08:58 PM
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same thing happened just now...the code is p2135 and it's saying it's throttle pedal positiong sensor...
So what should i do?
Change the whole peadal?
Did anybody had problem like this?
When i clear my service engine soon light car goes normaly for some time...
Thanx
Old 06-28-2011, 10:10 AM
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anyone
Old 06-28-2011, 10:17 PM
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someone please,don't wanna buy something i don't need...
Old 06-29-2011, 07:27 PM
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Bump
Old 06-29-2011, 07:33 PM
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Old 09-28-2011, 02:29 AM
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Quote:
Originally Posted by miconi View Post
Bump
Got a customer right now with the same problem. I did all the relearns and re-calibrations in his G, will let you know how it plays out.

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