In Need Of Information

[jaggers12 2]

im currenty fitting a gti6 enginr in my car and i have looked trough the different topics but the problem i have is my car is a phase 1 and dosnt have the 2 brown plugs. i have wired up the sensors from the engine and the wire for the fuel pump. the wires ive got lrft are for the switched live and for the rev counter which im unsure of where they go. also should the fuel pump work with these wires diconnected.

Edited March 15, 2011 by jaggers12

[pug_ham 241 3 Cars]

You'll find a switched live in the loom that comes through the passenger side of the bulkhead to the coil on the inner wing which you can use & the rev counter wire will also be at the coil.

 

I don't think the fuel pump will run without the switched live though but not 100% certain.

 

Graham.

[jaggers12 2]

hummm with the switched live conneced i still get nothing i checked the inertia wires an there conneced ok im really baffeled now

Edited March 18, 2011 by jaggers12

[pug_ham 241 3 Cars]

Have you connected it to the right wire into the double relay?

 

The ecu isn't locked is it?

 

You need a conversion for the rev counter to work from the GTI-6 ecu signal. iirc it won't work the standard 205 rev counter.

 

Graham.

[jaggers12 2]

after connectin pin 14 on the double realay ot an ign live it now primes but after that i get no spark and no fuel i was told the ecu was unlocked but im now unsure if it is, is there any way of me checking. thx

[welshpug 1,626]

got another crank sensor to try?

[jaggers12 2]

no but i can get 1 tomorrow

[jaggers12 2]

ive tried a new crank sensor and still no spark, i dunno what else to try now

[jaggers12 2]

would the rev counter wires being disconnected stop it from sparking

[pug_ham 241 3 Cars]

No.

 

Have you checked for voltage at the coilpacks?

 

Graham.

[jaggers12 2]

i carnt check for voltage i dont own a mulitimeter at the mo. ive just had my ecu unlocked and that hasnt helped so thats £50 down the drain .

can some one confirm if i have done my wiring right.

i have put a switched live to to pin 14 on the double relay - do i need to t into it or cut the wire and add the live feed

ive also put a switched live to the to lambda and airbag control

ive joinded the fuel pump wire.

im about ready to give up so if any one could help it would be realy appreciated

thanks andy

[pug_ham 241 3 Cars]

Your switched live to pin 14 of the double relay needs to be properly connected, if you have the 306 engine bay loom & plug you can splice into the cable between the original plug & the relay.

 

Have you got another permanent feed to the ecu from the battery? Usually by a ring terminal via the alternator on the 306 loom iirc.

 

Graham.

[jaggers12 2]

ive soldered my switched live to wire 14 by the plug, also i havent tuched the loom live so its still attached to the alternater

[pug_ham 241 3 Cars]

OK, if the GTI-6 loom is connected to the alternator post then it should be right.

 

Have you got the right double injection relay fitted for the GTI-6 & is it a known good one?

 

Is the crank sensor plugged into the correct plug? The gearbox VSS comes out of the loom with the CAS & they can be wrongly connected.

 

CAS has a brown plug & VSS is white on the loom I have.

 

Graham.

[jaggers12 2]

just fitted a new double relay from pug so its definalty a good one. crank sensor is plugged into the right plug. i havent got the vss plug coneceted to anything as im using my 1.9 box. just used a multi meter im getting power to the coils only while the pump is priming after that it drops to 0 volts

[pug_ham 241 3 Cars]

Ok, without the VSS connected you'll have a slight hesitation when it is running iirc but that won't stop it running.

 

Is there a possibility you've cross connected the fuel pump & coil feed wires on the double relay so the fuel pump runs constantly with the ignition on but the coils obnly get the initial priming burst?

 

Graham.

[jaggers12 2]

ive only added the switched live to pin 14. the fuel pump only primes for 20 seconds then stops. would i need the vss plugged in all the time to run normaly

[pug_ham 241 3 Cars]

Oh yeah, I 'forgot the GTI-6 coil gets power from the double relay for a while.

 

The car will run without the VSS plugged in just when you floor the pedal it won't respond quite as instantly.

 

You must've made some more connections to get power to the fuel pump but 20 seconds sounds a long time considering they usually only prime for five at most.

 

You need use of a multimeter to check if you have voltage at the coil pack plugs now.

 

Graham.

[jaggers12 2]

the only conection for the fuel pump is the white wire 120 - 76 . ive checked for voltage at the coils with a multimeter i get 12v while it primes

[pug_ham 241 3 Cars]

I'm not sure but I think you should have 12v there with the ignition on not just when it primes.

 

If you have 12v there whilst it primes you should get a spark if you crank it straight away imo while the pump is priming.

 

Are the coilpacks known good?

 

Graham.

[jaggers12 2]

dont know how good the coil packs are but once its finished primming i only get 0.02 ish volts while cranking

[pug_ham 241 3 Cars]

Is the ~0.02v during cranking or jafter the pump stops priming?

 

You need good known working coilpacks or someone / where to test yours to rule them out as faulty imo.

 

Graham.

[jaggers12 2]

i get it during cranking

ill get some new coilpack for the weekend