MK5 Golf GTI

All Things Mk5 => How to Guides / Troubleshooting => Topic started by: jeru31 on July 13, 2020, 10:00:20 am

Title: Engine light is on and revs are high
Post by: jeru31 on July 13, 2020, 10:00:20 am

Morning peeps, So I have a Golf GTI Pirelli MK5. Of late the engine light has come on and the car is revving up to 2000 revs when idle, sometimes it comes down, other times it doesn't. I was reading up about this and it was suggested it could it be the PCV valve that needs replacing ? or do I need to take it to a garage? it's driving ok at the moment, thanks in advance

Title: Re: Engine light is on and revs are high
Post by: TheBALDpuma on July 13, 2020, 04:02:20 pm

Could be an air leak, i.e. it's sucking in too much because there's a hole in a pipe.

Title: Re: Engine light is on and revs are high
Post by: LC5F on July 13, 2020, 05:05:17 pm

Engine running, take oil cap off.
When you remove the cap there should be resistance from vacuum and the engine revs should falter.
if its easy and no change in engine - PCV blown - easy DIY if its this

Title: Re: Engine light is on and revs are high
Post by: jeru31 on July 13, 2020, 07:04:29 pm

thanks guys, I will get it checked out with your recommendations