Valver calling

greendale65 · Post by **greendale65** » Fri Sep 11, 2015 9:22 am

Hello all, I've ask this before some time back
my valver when I start up the rev's go high after
about a mile it calms down to normal running.
Right now I've taken of i.c. valve just sprayed with
wd 40 do I need to do more. please tell me

Kitch · Post by **Kitch** » Fri Sep 11, 2015 12:16 pm

Coolant temp sensor?

RobC · Post by **RobC** » Fri Sep 11, 2015 5:01 pm

I get this too - especially in the winter. Accompanied by revs waving up and down from 500 - 2000 rpm.

In my case it's not the coolant temp sensor but I can fully understand why that might be a logical port of call.

I'm planning on overhauling all the air inlet/bypass hoses to double check there aren't any leaks will report back.

What other engine management sensors are temperature-dependent apart from the CTS?

Kitch · Post by **Kitch** » Fri Sep 11, 2015 7:15 pm

Air flow meter has an air inlet temp sensor i think.

themildbunch · Post by **themildbunch** » Fri Sep 11, 2015 9:45 pm

also worth checking the springs for the butterfly valves on the throttle body, these often break or become loose...one of mine has and I get a slightly high idle as a result..

rutter123 · Post by **rutter123** » Sat Sep 12, 2015 12:22 pm

Airleaks are usually the cause of erratic rpm's, my gti suffered from this i ended up completely removing the SAD (choke valve) and blocking up the air inlet/outlets.

greendale65 · Post by **greendale65** » Sat Sep 12, 2015 1:41 pm

Ok all, Thanks for advice gives me something to aim for.
when its running on the low revs its so docile but goes
like a rocket. when pedal down.
U can see photo of my valver
listed valver in west bay
Dorset.

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