Author Topic: 1.8t AUM Overboost  (Read 2101 times)

Offline Jordan_gti

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1.8t AUM Overboost
« on: 05 October 2017, 17:18 »
Hi again, im back with boost issues :)

I have a mk4 golf GTI (AUM Engine) 1.8 Turbo. My mods; Forge 008 Recirculation valve, COne filter, 3" full turbo back decat exhaust. It was originally not boosting at all, after a long investigation, I discovered the actuator was stiff and I freed it up & adjusted it and it now boosts to 8psi as it should. However when I get to about 6k revs it jumps up to around 10 PSI. what could cause this?
2002 Golf Gti 1.8T (AUM) LC9Z

Offline Jordan_gti

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Re: 1.8t AUM Overboost
« Reply #1 on: 05 October 2017, 17:20 »
Side note, I also don't get any lights on the dash even though its running decat? only shows a code in VCDS
2002 Golf Gti 1.8T (AUM) LC9Z

Offline itavaltalainen

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  • VCDS and VCP - fault codes, coding, VIM activation
Re: 1.8t AUM Overboost
« Reply #2 on: 06 October 2017, 08:25 »
EML taped over?
2019 Seat Leon ST FR DSG 135kW - eclipse orange - 23k miles

Offline Jordan_gti

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Re: 1.8t AUM Overboost
« Reply #3 on: 06 October 2017, 12:53 »
I hope not lol
2002 Golf Gti 1.8T (AUM) LC9Z