HELP my polo keeps hold the revs when stopping

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polo6ndub
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HELP my polo keeps hold the revs when stopping

Post by polo6ndub »

my brother was fixing my heater on my car(Polo 6N 1998)

then decided to clean out the throttle body :)

he done a reali good job until :x i drove it the next day

what it keeps doing is when the car heats up and im driving

if im coming to a stop with the car out of gear the car holds the revs until the wheels stop moving sometimes increases the revs then goes back to idling at 1000 revs.

i have put the car on the laptop and no falts are cuming up and tryed resetting the throttle alignment still no luck any idea's

PLZ HELP
polo-sib
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Re: HELP my polo keeps hold the revs when stopping

Post by polo-sib »

Think the throttle body needs a reset using vag-com as I tried the battery trick in the past a few times and its never worked.
polo6ndub
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Re: HELP my polo keeps hold the revs when stopping

Post by polo6ndub »

Do u kno or any1 else kno the details on how to reset the throttle body on vag-com just in case my brother is doing it rong :D
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alexperkins
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Re: HELP my polo keeps hold the revs when stopping

Post by alexperkins »

polo6ndub
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Re: HELP my polo keeps hold the revs when stopping

Post by polo6ndub »

Thanx polo-sib & alex im guna give it a go later 2day
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NOZ
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Re: HELP my polo keeps hold the revs when stopping

Post by NOZ »

Will resetting the ECU help?

I'm not technically minded with this but the ECU was reading a different setting before (ie with all the dirt in the TB), maybe the fact it's changed is making the ECU think the TB's like before.
polo6ndub
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Re: HELP my polo keeps hold the revs when stopping

Post by polo6ndub »

u'v got a point

cuz i have resetted the throttle body and vag-com says its all ok but it still doing the same thing

there is 1 thing i hav noticed it will only have this problem when the engine heats up not when the engine is cold :?
polo-sib
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Re: HELP my polo keeps hold the revs when stopping

Post by polo-sib »

polo6ndub wrote:u'v got a point

cuz i have resetted the throttle body and vag-com says its all ok but it still doing the same thing

there is 1 thing i hav noticed it will only have this problem when the engine heats up not when the engine is cold :?
Pure guess lambda as you run rich whilst it heats up, once heated you run normally... but its a pure guess where thats got covered in gunk when the tb was cleaned, again a pure guess.

Another idea is when cleaning tb you got stuff in the hoses such as oxygen or vacuum tube, again a guess.
polo6ndub
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Re: HELP my polo keeps hold the revs when stopping

Post by polo6ndub »

just to let evry 1 know iv solved this problem after sending it to vw and them telling me to change the throttle body and they wanted to charge me £400 to do this

they wernt 100% sure it would solve the problem so i told them sod it

my bro was trying to fix it and it ended up being the COOLANT TEMP SENDER

TOTAL COST £15 from europarts :lol: :lol:
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NOZ
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Re: HELP my polo keeps hold the revs when stopping

Post by NOZ »

Lol can't believe I didn't think of that!!!!

The temp senders one of the nmost common faults on 6n polo's when it comes to rev issues! :roll: Atleast you sorted it already and bet your lucky you didn't get bent over by VW!
polo6ndub
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Re: HELP my polo keeps hold the revs when stopping

Post by polo6ndub »

yhh im happy my car in on the up

i done my first service by my self a few weeks ago so its running nice im guna get the clutch changed the she will be running perfect lol

thanx again for your replies
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