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 Rover 45 throttle pedal fly by wire problem 
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 Post subject: Rover 45 throttle pedal fly by wire problem
PostPosted: Tue Nov 05, 2013 5:46 pm 
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Hi guys, I'm having trouble with a 2003 rover 45 going into limp mode and when driving the car is surging, I have never seen a rover 45 without the half cable, this one has no cable at all.
I cant find one second hand for love nor money.
Can anyone should some light on it?
thanks


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 Post subject: Re: Rover 45 throttle pedal fly by wire problem
PostPosted: Tue Nov 05, 2013 5:55 pm 
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There are two sensors but both are under the bonnet.

http://www.rimmerbros.co.uk/Item--i-GRID003189

(Number 10).

It is unlikely to be the throttle position sensor itself though. If it is faulty the ECU ignores the throttle and the revs will sit at ~1300rpm.

If it is surging then it is more likely to be an EGR fault.

What does the ECU fault code say?

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 Post subject: Re: Rover 45 throttle pedal fly by wire problem
PostPosted: Tue Nov 05, 2013 9:16 pm 
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Can I just bypass the egr? This car has no cable from the pedle, just a black box attatched to the pedle.


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 Post subject: Re: Rover 45 throttle pedal fly by wire problem
PostPosted: Tue Nov 05, 2013 10:37 pm 
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Are you sure as that isn't listed on rimmer bros.

The only pedal mounted sensor was on the 600. The 400/45/zs had the cable as far as I know.

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 Post subject: Re: Rover 45 throttle pedal fly by wire problem
PostPosted: Wed Nov 06, 2013 12:51 am 
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Yeah, i was shocked myself, I've had loads of 45's and zs's now and never seen one without a cable.
It went into limp mode twice but now just seems to surge constantly while under half throttle.
Seems to be ok on tickover and under full throttle but anywhere in between its got a mind of its own.
:?


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 Post subject: Re: Rover 45 throttle pedal fly by wire problem
PostPosted: Tue Nov 19, 2013 6:50 pm 
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Do you think it would take a whole load of effort o convert it to the standard arrangement accelerator?
I'm still non the wiser


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 Post subject: Re: Rover 45 throttle pedal fly by wire problem
PostPosted: Tue Nov 19, 2013 9:52 pm 
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Are you sure it is the problem? Could also be a duff crank sensor too.

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 Post subject: Re: Rover 45 throttle pedal fly by wire problem
PostPosted: Tue Nov 19, 2013 10:08 pm 
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I had a good search through the epc on Rimmers earlier, there doesn't seem to be any reference to fly by wire throttle for the 45, a bit of a puzzler tbh.

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 Post subject: Re: Rover 45 throttle pedal fly by wire problem
PostPosted: Tue Nov 19, 2013 10:31 pm 
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peteT16 wrote:
I had a good search through the epc on Rimmers earlier, there doesn't seem to be any reference to fly by wire throttle for the 45, a bit of a puzzler tbh.



All the intercooled diesel L series are fly by wire.

The 200/25/zr and 400/45/zs got a cable and an underbonnet mounted potentiometer.
The 600 got a pedal mounted unit instead.

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 Post subject: Re: Rover 45 throttle pedal fly by wire problem
PostPosted: Wed Nov 20, 2013 5:56 pm 
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Right,
then that must mean that someone has retrofitted this thing.
So i shouldn't have a problem in finding the original wiring and putting it back to how it should be.
After trying a crank sensor.
thanks guys.


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 Post subject: Re: Rover 45 throttle pedal fly by wire problem
PostPosted: Thu Nov 21, 2013 8:52 pm 
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Right,
So today I had a proper look at this accelerator pedal and I can confirm that it was indeed factory fitted, i stripped it all off and found that the loom was the same but had been doubled over and taped up, there was a factory fitted bung in the accelerator cable hole and the pedal mounting bracket had a part missing that i had to weld back in.
I took a picture as proof.
I have no idea why this car is different, maybe they ran out of parts on the construction line and it was a friday afternoon, who knows.
The main thing is that the car now drives perfect with the parts that i took from a zs td that I'm breaking. :)


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