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| throttle position sensor... shagged? https://www.fiesta-si.com/forums/viewtopic.php?f=4&t=20610 |
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| Author: | si-andy [ Mon Sep 20, 2010 10:35 pm ] |
| Post subject: | throttle position sensor... shagged? |
the car runs fine with it un-plugged (well not fine but it runs) when i plug it in the engine stalls, whats the problem? (1.6 zetec) |
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| Author: | DarrenFsi [ Mon Sep 20, 2010 11:08 pm ] |
| Post subject: | Re: throttle position sensor... shagged? |
do you mean the MAF or the idle speed control valve bud? they could both just need a clean have a gander at loumiesters thread bout cleanin the MAF easy job the idle speed control valve is also easy to clean just take it out and get some carb cleaner on it 
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| Author: | The Loumiester [ Mon Sep 20, 2010 11:14 pm ] |
| Post subject: | Re: throttle position sensor... shagged? |
check for any snapped wires leading to the maf sensor, happened to mine and it just starts but stalls about a second after. |
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| Author: | si-andy [ Mon Sep 20, 2010 11:18 pm ] |
| Post subject: | Re: throttle position sensor... shagged? |
 its this little bugger thats the problem |
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| Author: | Chris [ Tue Sep 21, 2010 9:41 am ] |
| Post subject: | Re: throttle position sensor... shagged? |
I got one if you want it. £5 posted 
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| Author: | si-andy [ Fri Sep 24, 2010 7:26 am ] |
| Post subject: | Re: throttle position sensor... shagged? |
Is it in good working order. Mate? |
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| Author: | Chris [ Fri Sep 24, 2010 4:44 pm ] |
| Post subject: | Re: throttle position sensor... shagged? |
Came off my si which worked fine. So I don't see why not. |
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| Author: | si-andy [ Mon Sep 27, 2010 11:49 pm ] |
| Post subject: | Re: throttle position sensor... shagged? |
yhpm |
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| Author: | si-andy [ Tue Oct 05, 2010 4:30 pm ] |
| Post subject: | Re: throttle position sensor... shagged? |
installed the replacement tps earlier and the problem hasnt changed, however when the engine is running up to temperature, i plug the tps in, it doesnt stall, but the revs increase to 1750rpm, then slowly increases to about 2000rpm then if you turn it off again and try and start it with the tps plugged in, it wont start unless my foot is flat on the gas ive cleaned the MAF ive cleaned the idle control valve any ideas peeps? |
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| Author: | EvilDes [ Tue Oct 05, 2010 9:56 pm ] |
| Post subject: | Re: throttle position sensor... shagged? |
ISCV might need replacing rather than just cleaning. Unfortunately it's one of those problems where it could be a number of things. Have you looked for any vacuum leaks? I had a similar problem which turned out to be a little L shaped vacuum pipe under the coil Had a hole in it.
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| Author: | si-andy [ Wed Oct 06, 2010 3:05 pm ] |
| Post subject: | Re: throttle position sensor... shagged? |
i havent checked for vacume leaks yet no, thats my next port of call, it just seems strange that it only plays up when the tps is involved |
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| Author: | onslack [ Wed Oct 06, 2010 4:12 pm ] |
| Post subject: | Re: throttle position sensor... shagged? |
have you tried disconnecting the battery and leaving it for a while to re set itself and see how it does then? imo after youve checked for any vac leaks i'd take it somewhere to get a diagnositc machine on it, that should help narrow down the fault
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| Author: | si-andy [ Wed Oct 06, 2010 8:29 pm ] |
| Post subject: | Re: throttle position sensor... shagged? |
nahh ill try doing the battery tomorrow, and see if that'll work is there a diagnostic plug on the si? i havent found it yet if so 
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| Author: | onslack [ Thu Oct 07, 2010 9:51 am ] |
| Post subject: | Re: throttle position sensor... shagged? |
| yeah there is, iirc its in the engine bay near the battery up against the inner wing, it'll be a triangle shaped things with a red caps in them 
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| Author: | si-andy [ Thu Oct 07, 2010 10:16 am ] |
| Post subject: | Re: throttle position sensor... shagged? |
ohh those things are the read plugs!! was wondering what they were |
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| Author: | onslack [ Thu Oct 07, 2010 10:26 am ] |
| Post subject: | Re: throttle position sensor... shagged? |
yeah  sadly the si doesnt have a fancy OBD port to diagnostics 
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| Author: | EvilDes [ Thu Oct 07, 2010 10:27 am ] |
| Post subject: | Re: throttle position sensor... shagged? |
Wow, Terry, I'm impressed. You used to know nothing!
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| Author: | onslack [ Thu Oct 07, 2010 10:42 am ] |
| Post subject: | Re: throttle position sensor... shagged? |
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