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Model specific boards => Golf mk3 => Topic started by: mk1.8t on 12 April 2012, 14:34

Title: vr6 conversion problem after problem
Post by: mk1.8t on 12 April 2012, 14:34

looking for some advice having major problems with my cabby that i have put a vr lump into.i had it all up and running fine last week,now it's dead will not even crank over.
cant even hear the fuel pump prime,all i get is the dash lights go to crank and nothing.

anything i could have missed,connections wise.

i have power to lights,windows etc just nothing engine wise

Title: Re: vr6 conversion problem after problem
Post by: sharki786 on 12 April 2012, 15:55

the starter could be jammed. Have you tried bump starting it? Check your relays aswel. If you say the fuel pump dont prime then it might be the fuel pump relay.

Title: Re: vr6 conversion problem after problem
Post by: Dmonday on 12 April 2012, 18:15

Are you able to turn it over by hand?

Title: Re: vr6 conversion problem after problem
Post by: mk1.8t on 12 April 2012, 21:55

yes engine turns by hand,got hold of a tester and checked there is no power to the ecu or engine???

Title: Re: vr6 conversion problem after problem
Post by: sharki786 on 12 April 2012, 23:24

id say the ECU relay

Title: Re: vr6 conversion problem after problem
Post by: mk1.8t on 13 April 2012, 00:14

put in a brand new 109 relayand a fuel pump relay,made no difference :cry:.
what else could stop the power getting to the ecu and engine

Title: Re: vr6 conversion problem after problem
Post by: tweed on 13 April 2012, 00:14

I would start by checking all wiring incase something is loose. You never know.

Title: Re: vr6 conversion problem after problem
Post by: topher on 13 April 2012, 12:52

ignition switch maybe? i know mine is about ready to give up, plays up intermittently with similar symptoms but a little wiggle of the key and it'll fire up.

Title: Re: vr6 conversion problem after problem
Post by: Dan_GTi8v on 13 April 2012, 15:15

could be wiring, maybe an earth has come loose. its usually the simple things :)

Title: Re: vr6 conversion problem after problem
Post by: boneybradley on 13 April 2012, 15:22

could be lots of things..... but is this a post 1995 motor (as they need the key and transponder to match the ecu..or a bypass fitted)

Title: Re: vr6 conversion problem after problem
Post by: mk1.8t on 13 April 2012, 20:51

Its a 1992 vr,spent the day pulling the loom out but it all seems ok.it now just cranks no spark or fuel,i have power at the ecu,dizzy and pin 4 of relay 109.just cant work out how it went from running to doing nothing.also while cranking the engine all the windows go down and the led in the door flashes.

Title: Re: vr6 conversion problem after problem
Post by: Dan_GTi8v on 13 April 2012, 20:55

does it have any aftermarket alarm or immob?

Title: Re: vr6 conversion problem after problem
Post by: mk1.8t on 13 April 2012, 21:09

it's a mk3.5 cabby,think it's got a standard vw alarm system dont know if it has a immobiliser built in.im using the vr loom,ecu and clocks.not sure if the fuel pump and spark are being killed some how although i had it running fine before all this happened.

Title: Re: vr6 conversion problem after problem
Post by: Wayne on 14 April 2012, 00:04

Could be an ecu fault

Title: Re: vr6 conversion problem after problem
Post by: mk1.8t on 14 April 2012, 18:30

Put a number 18 relay in place of my fuelpump relay and got it to come on with ignition but then it stayed on untill i switched ignition off.is there a way i can test my ecu,i know the ecu gets power so does that mean it works.the car still wont spark for more than a second.the new pump relay i bought will be going back as its faulty as it does nothing.