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Revs dropping on idle

  • happypig
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03 Dec 2012 18:35 #54759 by happypig
Revs dropping on idle was created by happypig
Last couple of days I've developed an intermittent problem whereby the revs sometimes drop when idling, usually when pulling up to a junction or parking.
Any ideas before I get my garage to have a look ?

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  • Licksan
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03 Dec 2012 18:45 #54760 by Licksan
Replied by Licksan on topic Revs dropping on idle
Had the same symptoms and turned out to be a broken throttle position sensor.

Replaced it and all was good again.

You can unplug it and the engine will run. Maybe not optimally but should stop it stalling.

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  • happypig
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03 Dec 2012 20:01 #54769 by happypig
Replied by happypig on topic Re: Revs dropping on idle
Cheers for that, could be it as I was poking about yesterday fitting air horns.
Whereabouts is the sensor?

Sent from my Nexus 7 using Tapatalk 2

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  • suzuki jimny fella
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03 Dec 2012 20:21 #54770 by suzuki jimny fella
Replied by suzuki jimny fella on topic Revs dropping on idle
i have had this problem a few time would like to no what it is pic would be awsome it have not done it for a while touch wood whats the worst that can happen guys

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  • Licksan
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03 Dec 2012 21:38 - 03 Dec 2012 21:39 #54785 by Licksan
Replied by Licksan on topic Revs dropping on idle
The TPS is fitted to the Throttle Body.

If your facing the car front on it's on the right hand side of the throttle body between the head/cam cover and above the inlet manifold. Has a black connector fitted with 3 wires to it. Will take a pic tomorrow.

Some people have indicated the wiring can be at fault and there is a way to test it but in my opiniom its most likely the sensor on its way out. I think the fact the Jimny can be a tad bumpy makes your foot bounce about on the throttle pedal which prematurely wears out the tracks on the PCB in the TPS causing an irratic signal to be sent to the ECU which upsets the idle.

www.bigjimny.com/index.php/forum/7-jimny...tion-sensor-tps-m13a
Last edit: 03 Dec 2012 21:39 by Licksan.

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  • Licksan
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04 Dec 2012 15:13 #54814 by Licksan
Replied by Licksan on topic Revs dropping on idle
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  • Mole
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17 Jan 2020 09:31 #217328 by Mole
Replied by Mole on topic Revs dropping on idle
Sorry for digging up an old post but did changing the TPS work as my jim dose this too if you sat at a junction waiting to pull away and your just idling the revs drop quite low the truck shudders a bit because it nearly stalls then the revs come up again.

Thanks

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18 Jan 2020 23:47 #217399 by kirkynut
Replied by kirkynut on topic Revs dropping on idle
Sounds like the Idle Control Valve is going wonky.

Kirkynut

The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.

My Jimny Thread Here: www.bigjimny.com/index.php/forum/8-my-ji...on-continues?start=0

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