Even more advice on mk2 8v 91'

[mk28vfreak]

Hi Guys and Gals,

Further to my previous posts i have had lots of work done on my gti and have managed to fix most problems, all but one.  I still cant seem to stop it Misfiring/Backfiring.  It only seems to happen when changing down through the gears when travelling reasonably fast.

So far i have had done/ replaced

New Clutch
New Cambelt + Tensioner
New Cam followers
Full Service with all Filters/Leads replaced
Ignition Timing checked
No Vacuum Leaks
Checked all Hoses.

The car run like a dream, apart from this one niggling problem.

Please, please, please

Any Ideas???

[golfvr6]

Check the fuel mixture.

[mk28vfreak]

Thanks for the post,

Had the mixture checked, was running a little lean, but adjustments seem to have made no difference.

 

[Slim Shady]

f**ked valves?

if the timing and the mixture is OK -it's time to inspect your top end

[golfvr6]

Compression test maybe?