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Old 17-06-2016   #16
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Re: Throttle Position Sensor - Replacing

Looks to me like the wiper has come away from the board,
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Old 17-06-2016   #17
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Re: Throttle Position Sensor - Replacing

Oh OK, so there are two then. This is one of them, and the other is on the pedal itself? Well I've bought a replacement pedal with sensor so maybe I'll change both and see what happens.
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Old 17-06-2016   #18
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Re: Throttle Position Sensor - Replacing

Yes, the other will be on or near the pedal.
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Old 17-06-2016   #19
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Re: Throttle Position Sensor - Replacing

Quote Originally Posted by UFI View Post
Yes, the other will be on or near the pedal.

Yes it's screwed to the pedal with two screws. I've bought a complete pedal and sensor from EBay. I didn't know that the throttle body had one too. Fingers crossed it works.
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Old 17-06-2016   #20
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Re: Throttle Position Sensor - Replacing

This is the video I took while my assistant pressed the accelerator pedal. As you can see the flap doesn't open very much. This I'm hoping is what is causing the errors on the dash and the rough running.

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Old 18-06-2016   #21
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Re: Throttle Position Sensor - Replacing

Of course it could be the butterfly actuator, not position sensor? or are they combined.
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Old 18-06-2016   #22
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Re: Throttle Position Sensor - Replacing

Yeah combined I think, all in one unit which I have bought. I might try changing just that later in case it's just throne bit
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Old 19-06-2016   #23
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Throttle Position Sensor - Replacing

The error said potentiometer so it could be the body. I've got a new (used) one already so I will change that tomorrow afternoon when I get home from work. Hopefully that will fix it in its own. Just waiting for the pedal to be delivered too.
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Old 20-06-2016   #24
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Re: Throttle Position Sensor - Replacing

Just to update on my other post - car went into our local garage at the end of last week, but the fault wasn't replicated and no more error codes showed up. Car has been working absolutely fine since, so just a case of keeping an eye on it I guess!

The garage was really good, they only charged 20+VAT for that particular bit to cover their labour. Also did the car's MOT, and my wife arranged for both front brake pads and front tyres to be replaced as well as they were borderline fails. 250 all in for the whole job which I think is very good going to be fair, plus the joy of not having to deal with Vospers or have to do anything more than walk 10 minutes to the garage!
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Old 21-06-2016   #25
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Re: Throttle Position Sensor - Replacing

I've now changed the throttle body in mine. Cleared the code, drove up the road and it came back by the time I got to 3rd gear. I now have the replacement pedal with sensor and will be changing it tomorrow. Fingers crossed. It's only 3 bolts and an electrical connection so although it's tricky to get to, hopefully it will do the trick and not take long.
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Old 22-06-2016   #26
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Re: Throttle Position Sensor - Replacing

I've changed the pedal this morning along with the new sensor and I'm getting exactly the same error. As soon as I pull away, by the time I get to third gear, beep. Same error and the car is rough running.

Can't believe it!!! What else could it possibly be?
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Old 23-06-2016   #27
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Re: Throttle Position Sensor - Replacing

I think you need do the relearn procedure?
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Old 23-06-2016   #28
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Re: Throttle Position Sensor - Replacing

Indeed, MES has a "throttle position learning" feature on the adjustments page (F7), but I assume you already tried that with both the original and the new throttle body.
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Old 23-06-2016   #29
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Throttle Position Sensor - Replacing

Quote Originally Posted by AGH1965 View Post
Indeed, MES has a "throttle position learning" feature on the adjustments page (F7), but I assume you already tried that with both the original and the new throttle body.

No I didn't! New one on me. Would that be when connected to the engine ECU?
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Last edited by typecastboy; 23-06-2016 at 21:13.
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Old 23-06-2016   #30
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Throttle Position Sensor - Replacing

I found it. I didn't know about this. Thanks. I will try it in the morning.

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Last edited by typecastboy; 23-06-2016 at 21:23.
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