Author Topic: Need help,won’t go above 20mph  (Read 240 times)

Offline Ant b

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Need help,won’t go above 20mph
« on: October 18, 2018, 05:47:35 PM »
Hello a few weeks ago I was driving to work and all of a sudden my gti felt like the engine cut out,but it wasent it just won’t go above 20mph or 3k revs.
I took it to one garage and they scanned it and said throttle body so I’ve now changed that,but it’s still exactly the same.
So the other day I got a freind out who used to specialise in vags and he had look on vagcom and checked a few things,he tested the throttle body(new and old)and the throttle pedal wouldent open it,he did say the pedal is fine tho.
In the end he said it must be a broken wire somewhere from under the battery to the tb,but it’s not by the plug like normal,he said he’s getting voltage up there but no earth and something els.
Question is do I just strip it all back and hope he’s right as I hate wireing so really don’t wont to do it,has anyone els had it?these are my codes
red mk5 golf gti ks05 fak,ram air intake,3” downpipe/decat,dv+,bcs rev ll exhaust stage 1 remap.coilovers,whiteline rarb and depo projectors,
Edition 30 front splitter,r32/gti rear,r32 side skirts
Soon to be r tech stage 2

Offline Pudding

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Re: Need help,won’t go above 20mph
« Reply #1 on: October 19, 2018, 11:31:02 AM »
It does sound like a broken wire, or a wire that's chaffed and shorting to the engine.   Have a look at the loom just under the vacuum pump.  I noticed when I did a chain replacement that the outer casing for that loom had worn through where it rubs on the vacuum pump.
Black Edition 30 with manually selected cogs, a beefier clutch, some extra boost and them Whiteline thingies, otherwise standard.

Offline Ant b

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Re: Need help,won’t go above 20mph
« Reply #2 on: October 19, 2018, 06:01:41 PM »
I think it’s looking that way
red mk5 golf gti ks05 fak,ram air intake,3” downpipe/decat,dv+,bcs rev ll exhaust stage 1 remap.coilovers,whiteline rarb and depo projectors,
Edition 30 front splitter,r32/gti rear,r32 side skirts
Soon to be r tech stage 2

Offline Ant b

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Re: Need help,won’t go above 20mph
« Reply #3 on: November 14, 2018, 06:48:27 PM »
Sorted,2 twisted wires going to the throttle body had stretched the heat shrink of and were earring out
red mk5 golf gti ks05 fak,ram air intake,3” downpipe/decat,dv+,bcs rev ll exhaust stage 1 remap.coilovers,whiteline rarb and depo projectors,
Edition 30 front splitter,r32/gti rear,r32 side skirts
Soon to be r tech stage 2