More Gti-6 Wiring Bullsh*t For You All

[oli-pug 6 2 Cars]

I was really hoping to get the car up and running this weekend but nothing seems to be going right lately.

 

I have switched live (wire 2a) to the relay and lambda, wire 1200 connected to fuel pump with the inertia bridged.

My permanent live consists of the thick brown wire which then branches off into 3 or 4 blue wires into the relay and a thin brown wire (bb1) both connected to the 205 shunt box.

 

Now i am getting fuel prime on the ignition for 5-6 seconds with 12v at the injectors, but absolutely bugger all at the injectors during cranking. The plugs are bone dry.

 

Came from a 99T plate xsara vts.

 

Help please

Edited August 17, 2008 by oli-pug

[welshpug 1,621]

got 12v at the coilpacks + spark?

[Toddy 7]

Use a spare CPS to eliminate, if the ecu doesn't know its cranking it wont open an injector?

[oli-pug 6 2 Cars]

I'm not getting 12volts at the injectors or coilpacks during cranking. Tried a new crank sensor earlier but still no good!

 

Anyone have any other ideas? I'm starting to think there may be an issue with my clifford alarm / immobiliser playing around. Problem is, i have no wiring diagrams for the system.

[oli-pug 6 2 Cars]

I removed my alarm system earlier and and rejoined the the existing wiring but still no joy!

 

Can anyone help me out, i'm really desperate to get it going. Next step will be to try another ecu maybe? I unlocked mine myself before they removed the engine at the scrapyard but chances are they've reconnected it and locked it again, bunch of tossers...

Edited August 24, 2008 by oli-pug

[pug_ham 240 3 Cars]

The coil pack should get its 12v feed from the injection double relay, pin #13.

 

If you can try another known unlocked ecu it might be worthwhile going down that route if you are at all uncertain about yours.

 

Graham.

[Spiky 37]

double relay fooked? maybe!

Edited August 27, 2008 by Spiky

[Richie-Van-GTi 70 2 Cars]

Check you have 2 pins on the multifunction relay with switched lives with the relay unplugged. Sounds like one side of it isnt switching. Easy to bridge over for a quick check to see if it will fire up

[oli-pug 6 2 Cars]

Just been out to test it and only pin 14 (cc4) has a switched live, but which other pin should?

[pug_ham 240 3 Cars]

Just been out to test it and only pin 14 (cc4) has a switched live, but which other pin should?

Looking at Autodata, nowhere other than pin 14 on the double relay should have an ignition switched 12v live but you should have a permanent 12v from the shunt box to pins 2, 8, 11 & 15.

 

Graham.

[oli-pug 6 2 Cars]

I've now tried all three of the double relays that i picked up from a scrapyard but still no signs of life They all came off peugeot 306's that were 1600 or 1400 petrol models, but the part numbers come the same as the 10j4rs relay.

 

I've checked and i'm definitely getting permanent live to pins 2, 8, 11 & 15 so no problems there!

 

The ecu is looking like the guilty cuplrit i think! James_R is hopefully lending me one so fingers crossed!

[Alastairh 47]

How did you unlock the ecu?

 

Al

[oli-pug 6 2 Cars]

When i went to look at the engine and hear it running, i unpugged the ecu myself with the ignition switched on just to be sure it would be unlocked.

 

However, I then left them to it to remove the engine and box for me and i picked it up a few days later. But... the ecu was plugged back in when they loaded it up for me, didn't think anything of it at the time but it's possible they plugged it back in to have a play around and forgotten to unlock it again!

[oli-pug 6 2 Cars]

It's alive :D

 

WHAT A RELIEF! fired right up and scared the hell out of me

 

Sourced a known unlocked ecu and it worked so it seems mine was locked. Ah well, onwards and upwards.

[pug_ham 240 3 Cars]

Cool.

 

Glad you fixed it & got it running.

 

Graham.