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Model specific boards => Golf mk3 => Topic started by: dub_man_cabbie on 23 January 2013, 17:43

Title: mk3 20v conversion help again
Post by: dub_man_cabbie on 23 January 2013, 17:43
mk3 golf gti 8v, agu 20v conversion,

NO SPARK!!!!!

Running standard loom been modfied and immob defeat,
engine turns over and fuel pump working but wont fire taken coilpack and plug out of no1 cylinder no spark,
is their something obvious im missing?????? 

HELP !!!!!!
Title: Re: mk3 20v conversion help again
Post by: popleyruss on 23 January 2013, 17:46
Check yhe loom across the coil pack really common to break up and fail
Title: Re: mk3 20v conversion help again
Post by: dub_man_cabbie on 23 January 2013, 17:47
CHEERS MATE SHALL DO
Title: Re: mk3 20v conversion help again
Post by: dub_man_cabbie on 23 January 2013, 18:04
just checked power at coils and they all have 12.5v running to them with ignition on then checked injectors and all have 5.5v running to them
Title: Re: mk3 20v conversion help again
Post by: ant_gti on 23 January 2013, 18:45
A few things to check maybe earths,crank sensor and the ignition amp is also known to be a bit rubbishon the agu.
Title: Re: mk3 20v conversion help again
Post by: dub_man_cabbie on 23 January 2013, 20:14
where is the ignition amp and what does it do
Title: Re: mk3 20v conversion help again
Post by: popleyruss on 23 January 2013, 20:51
where is the ignition amp and what does it do

It should be on ur engine loom and it would have originally been bolyed to the air box
Title: Re: mk3 20v conversion help again
Post by: dub_man_cabbie on 23 January 2013, 21:54
is that the one with two plus going to it or one?
just been playing with the car and i seem to be getting power readings on all electrical plugs and the fuel pump is defo running and their is fuel getting to the rail is it possible to work out which way round the two fuel pipes are supposed to go (id imagine u can get these wrong) .
Title: Re: mk3 20v conversion help again
Post by: CJA321 on 23 January 2013, 22:04
Sure the looms okay?
Title: Re: mk3 20v conversion help again
Post by: dub_man_cabbie on 23 January 2013, 22:13
pretty sure i had it done by a company called vagtronics and everything looks great he looks to have done a quality job and im getting the right kind of readings with the multi meter.
u can also see the loom running another agu on facebook which i know is my loom because i labled it all up.

god this is frying me noodle!!!

this was the only thing on the whole conversion i wasnt looking forward to.
Title: Re: mk3 20v conversion help again
Post by: CJA321 on 23 January 2013, 22:16
Pm Gash, he had exactly the same problem on his one. Cant remember how he resolved it in the end. Or have a quick search for the thread
Title: Re: mk3 20v conversion help again
Post by: benvictors on 23 January 2013, 22:16
is that the one with two plus going to it or one?
just been playing with the car and i seem to be getting power readings on all electrical plugs and the fuel pump is defo running and their is fuel getting to the rail is it possible to work out which way round the two fuel pipes are supposed to go (id imagine u can get these wrong) .

The ignition amp is the one with the 2 plugs going to it. The fuel rail will have arrows on it for fuel direction, if you used the original mk3 fuel lines they also have arrows on them.
Have you cleared all the codes with vag-com?? There is always a bunch of codes crop up when you are converting.
Title: Re: mk3 20v conversion help again
Post by: dub_man_cabbie on 23 January 2013, 22:23
when i sent vagtronics the loom i had to send the ecu so it could have the imobliser defeat done so i would have imagined it would just be a plug and play type affair (am i being a tool??)lol
Title: Re: mk3 20v conversion help again
Post by: benvictors on 23 January 2013, 22:28
^^ Yes (Sorry  :wink:)
When you plug everything back in is when the codes generally crop up and they wouldn't have touched that side of the ecu for the immo defeat.
Get it on Vag, clear all the codes then try again  :cool:
Title: Re: mk3 20v conversion help again
Post by: dub_man_cabbie on 23 January 2013, 22:36
dub_man_cabbie_the_tool.
lol cheers ben consider my user name changed!!!!
ill get on it.
can i do that with a cheap ebay type vag com or does it need regestering
also just before i ring vagtronics has anyone got any idea what K LINE means one of the wires that looks like it goes to the clocks.
could that be a wire thats going to conect to the vag port.
otherwise i cant see how the port is going to be connected to the ecu!!!!
Title: Re: mk3 20v conversion help again
Post by: benvictors on 24 January 2013, 21:27
Hhhhhmmm, the loom can be done in such a way that you dont even need to touch the K Line, literally plug the loom into yr fusebox and the obd port works as it should. I would say that wire needs splicing into yr existing OBD port wiring, pin 7 on the obd port.
Any diagnostics that can clear codes will do, I know theres a few 'Read Only' vag tools out there.
That K Like is gonna need to be connected before you can clear anything tho.
I would contact Vagtronics to double check about the K Line scenario before taking my word on it, as I said before, our looms are OBD plug and play so im not 100%  :smiley: