13 replies to this topic

[Steve B]

Basically it happened once immediately after Hofmanns pluged in to see if they could remove the ABS warning light, pulled out of a junction and throttle cut and stopped responding, threw up engine warning light - they said it read as "Throttle Position Sensor". They reset it and all has been fine for the last few weeks, this morning it happened again pulling out of a junction so I turned the car off, restarted and it came back to life, but then did it again, and again so I had to go home and abandon the car. Anyone had this before, know exactly what I should be looking at? Likely to be a loose connection or do these sensor really get faults?

[techieboy]

Could well be the connectors of doom inside the nearside rear wheel arch. They often turn out to be the culprit where throttle problems are concerned. It's a case of jacking the car up, removing the wheel and arch liner. Then attached to the header tank bracket (usually, although in FLD's case they were on the gearbox) are two connectors. Usual cure is to disconnect them, clean them up with some contact cleaner and make sure that all of the connectors make proper contact before reconnecting. Also worth doing the same to the connectors on the throttle pedal and the throttle body.

[Steve B]

Could well be the connectors of doom inside the nearside rear wheel arch. They often turn out to be the culprit where throttle problems are concerned. It's a case of jacking the car up, removing the wheel and arch liner. Then attached to the header tank bracket (usually, although in FLD's case they were on the gearbox) are two connectors. Usual cure is to disconnect them, clean them up with some contact cleaner and make sure that all of the connectors make proper contact before reconnecting.

Also worth doing the same to the connectors on the throttle pedal and the throttle body.

Cheers

That'd make sense as it got the new front clam only last month so that are may well have been disturbed.

[FLD]

On mine the contacts open up. When you pull the plug apart look at the part with the female terminals. Pull of the yellow grid piece and examine all the terminals. You often find that one or two have opened up with the leverage from the wiring moving. Stick a safety pin in and tighten it up. Reassemble and off you go!

[Steve B]

On mine the contacts open up. When you pull the plug apart look at the part with the female terminals. Pull of the yellow grid piece and examine all the terminals. You often find that one or two have opened up with the leverage from the wiring moving. Stick a safety pin in and tighten it up. Reassemble and off you go!

Thanks for the tip, I'll have a look at it on the weekend fingers crossed this sorts it. Quite scary pulling into a main road to then loose throttle.

[FLD]

On mine the contacts open up. When you pull the plug apart look at the part with the female terminals. Pull of the yellow grid piece and examine all the terminals. You often find that one or two have opened up with the leverage from the wiring moving. Stick a safety pin in and tighten it up. Reassemble and off you go!

Thanks for the tip, I'll have a look at it on the weekend fingers crossed this sorts it. Quite scary pulling into a main road to then loose throttle.

Tell me about it! I lost mine on the M6 a while back.

[EssexVX]

There is another thread at the moment with the same fault. Should be error code P1271. On mine, it was the throttle body that was dodgy and a new one sorted it.

[Denthrax]

Must be the time of year. Had the same problem last saturday 5 miles before my destination (wich was a trip of over 250miles) Cleared the code with my scangauge and left the car for the night. No problems whatsoever the next day Going the check al the connections this weekend and clean them with some contact cleaner while i'm at it.

Edited by Denthrax, 04 March 2010 - 05:58 PM.

[JohnTurbo]

My focus does this. Its the pedal assembly on that.

[Steve B]

I didn't have time to investigate this weekend, but nights drawing out I'm hoping to have a look sometime this week. Any other tips anyone can offer, so I need to take nearside rear wheel off, remove arch liner, open connector, clean, check females are not splayed, if so tighten them up. Also look at throttle body connector, same thing really. I'm sure its connector / water / freezing weather related. Regards contact cleaner, WD40 ok?

[TheStotts]

I didn't have time to investigate this weekend, but nights drawing out I'm hoping to have a look sometime this week. Any other tips anyone can offer, so I need to take nearside rear wheel off, remove arch liner, open connector, clean, check females are not splayed, if so tighten them up. Also look at throttle body connector, same thing really. I'm sure its connector / water / freezing weather related.

Regards contact cleaner, WD40 ok?

Had similar issues last year and it was the connector just above the throttle pedal. This link might help

[Steve B]

I didn't have time to investigate this weekend, but nights drawing out I'm hoping to have a look sometime this week. Any other tips anyone can offer, so I need to take nearside rear wheel off, remove arch liner, open connector, clean, check females are not splayed, if so tighten them up. Also look at throttle body connector, same thing really. I'm sure its connector / water / freezing weather related.

Regards contact cleaner, WD40 ok?

Had similar issues last year and it was the connector just above the throttle pedal. This link might help

Cheers

Anyone got any suggestions for the best contact cleaner to use?

[techieboy]

I just use a can of Halfords finest Contact Cleaner and a fibreglass pen to clean the contacts up.

[Steve B]

I just use a can of Halfords finest Contact Cleaner and a fibreglass pen to clean the contacts up.

I'll pick some up on the way home

http://www.halfords....tegoryId_165750

and just ordered one of these, didn't know they existed

http://cgi.ebay.co.u...=item3ef65f0096

I was thinking along the lines of wd40 and a toothbrush