MK5 Golf GTI

All Things Mk5 => How to Guides / Troubleshooting => Topic started by: moukie on January 28, 2022, 02:01:12 pm

Title: Slight Shaking on idle, air leak?
Post by: moukie on January 28, 2022, 02:01:12 pm

Hi! Hoping someone can help. Had the timing belt replaced last year by a reputable specialist. I have noticed the car shaking a bit on idle and there is a slight misfire logged on cylinder 4. Seems to be fine under load just on idea. Other issue is pulling away in 1st there sounds like an air leak. I have done all the usual things, replaced plugs, coil packs, Diverter Valve, PCV. Anyone experienced soemthing similar... any pointes. I did wonder about the injectors....

Title: Re: Slight Shaking on idle, air leak?
Post by: pudding on January 28, 2022, 05:24:49 pm

That does sound like injectors.  Misfiring at idle is when you notice it the most.  If there's a big enough air leak to cause problems, it usually flags a 'system too lean' code.