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Author Topic: High Revs on cold start?  (Read 1701 times)

Offline tommygtimk4

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High Revs on cold start?
« on: 14 July 2011, 14:29 »
As titled says, when i start the engine from cold the engine revs up to about 2000rpm on average, anyone any ideas why this could be happening? Heres a video of it:

http://www.youtube.com/watch?v=7SMPBxgOu40

PS: Car doesnt need serviced, mechanic who serviced it forgot to knock the message off lol altho its going to him tomorrow get that done. Cambelt and waterpump has been changed about 500mile ago, and as mentioned in a thread yesterday my exhaust is bungo'd altho this irratic rev up on cold starts has been happening for a while before the exhaust went.
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NIR Dubz .:
2002 1.8T AUM GTi 150bhp
Mods to date: FK AK Coilovers, Carbon Wrapped Interior

Offline benmanc

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Re: High Revs on cold start?
« Reply #1 on: 14 July 2011, 16:07 »
Is that not normal?  Mind does similar and then settles down. 

It could do with a bit of a clean of the throttle body maybe?  Have you scanned for any faults also?
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Offline tommygtimk4

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Re: High Revs on cold start?
« Reply #2 on: 14 July 2011, 16:15 »
Tb was cleaned recently and no faults, just seemed a bit high to me, I had a 318ci before this gti and can't remember it revving up as high, maybe this normal lol it's my first petrol golf like had a GT tdi pd few years ago so all still newly fangled to me :)
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NIR Dubz .:
2002 1.8T AUM GTi 150bhp
Mods to date: FK AK Coilovers, Carbon Wrapped Interior

Offline houston

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Re: High Revs on cold start?
« Reply #3 on: 14 July 2011, 16:17 »
which engine is it? tb could need aligned.

unsure if 1.8t has an idle control valve
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Offline Big Tone

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Re: High Revs on cold start?
« Reply #4 on: 14 July 2011, 16:17 »
Elevated revs come from secondary air pump running but try grand seems a bit high.

Mine goes to about 1200_1300, pump has had rivets replaced.

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Offline tommygtimk4

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Re: High Revs on cold start?
« Reply #5 on: 14 July 2011, 16:25 »
It's a 1.8t, I'll get the mechanic to have a look at the secondary air pump then :) least I know now I'm not imagining something wrong
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NIR Dubz .:
2002 1.8T AUM GTi 150bhp
Mods to date: FK AK Coilovers, Carbon Wrapped Interior

Offline Big Tone

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Re: High Revs on cold start?
« Reply #6 on: 14 July 2011, 22:51 »
Quote from: tommygtimk4 on 14 July 2011, 16:25
It's a 1.8t, I'll get the mechanic to have a look at the secondary air pump then :) least I know now I'm not imagining something wrong

Thats not what I'm saying, tb clean/alignment would be my first guess.
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****FOR SALE**** 11 Months MOT, 5 Months Tax - 1.8T AUM, Stage 1 map, Lowered 35mm on Jamex Springs, Smoothed Airbox, Pipercross Panel, Forge 007P, N249 Bypass, Silicon Breather Hoses,Silicon Vac Hoses, Top Mounts & Bushes All Round, Catch Can Install,  New Discs and Pads All Round, A Big Sub, A SH*TLOAD of Polishing and A Thirst For V-POWER! Profile/msg for info!

Offline tommygtimk4

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Re: High Revs on cold start?
« Reply #7 on: 14 July 2011, 23:56 »
ok cool thanks mate :)
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NIR Dubz .:
2002 1.8T AUM GTi 150bhp
Mods to date: FK AK Coilovers, Carbon Wrapped Interior
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