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Model specific boards => Golf mk2 => Topic started by: GeordieChap on 19 August 2013, 19:19

Title: 16v ignition timing problem
Post by: GeordieChap on 19 August 2013, 19:19

Just trying to step up the ignition timing on my 1.8 16v using a timing light seem to the get the marks to line up and then all of a sudden the engine revs go right up and the marks don't align anyone had the same problem?

Title: Re: 16v ignition timing problem
Post by: notenoughtime on 19 August 2013, 21:24

does it normally rev on its own?

When the revs rise timing alters so marks will be different

Title: Re: 16v ignition timing problem
Post by: GeordieChap on 20 August 2013, 07:11

Yeah car revs fine just idles a bit high and there is a slight backfire on down rev so was going to sort timing then idle and check co, just can't understand why all of a sudden the marks align and then off go the revs

Title: Re: 16v ignition timing problem
Post by: raferackstraw on 20 August 2013, 20:03

let car warm up, fan should come on twice, then auxillaries off, use the timing light. 6deg btdc.
if it idling high look at bypass screw/isv
search for 16v idling and there are quite a few posts.
also look at mixture/overun cutoff valve

Title: Re: 16v ignition timing problem
Post by: Gambit on 22 August 2013, 17:13

and make sure the red wire at the coil is disconnected while setting timing, co% & idle

Title: Re: 16v ignition timing problem
Post by: GeordieChap on 22 August 2013, 21:01

So it's not only the plug to the ISV I disconnect its also the red wire? Or just the red wire?

Title: Re: 16v ignition timing problem
Post by: GeordieChap on 22 August 2013, 21:33

Sorry I meant to say to adjust the idle and co

Title: Re: 16v ignition timing problem
Post by: Gambit on 23 August 2013, 00:17

Just the red wire.