113 replies to this topic

[Exmantaa]

x2 pin 12 green/pink go to 86
.5 brown goes from 85-87
large brown goes from 87 out
brown/pink goes from 30 to x2 pin 1

the k16 fuel pump relay seems to be wired as z22se diagram and pins on x2 agree

^^ is that from Engine relay K18??

[NickB787]

yes k18

[Exmantaa]

According to the 2,2 diagram:

x2 pin 12 green/pink go to 85
.5 brown goes from 86-30 (30 brown 3mm +12V)
brown 2mm goes from 87A out
brown/pink goes from 87 to x2 pin 1

[NickB787]

doesn't make sense, on the relay it has 87B not 87A, can't believe they made that many changes to the wiring

Edited by NickB777, 06 October 2012 - 01:10 PM.

[Exmantaa]

No, it doesn't because I just checked my relay. Has 87B and wiring is different...

Wait a second [grabs pen and paper..]

[techieboy]

I can bring my VX down Nick and we can compare, if Exmantaa doesn't come up with the solution now.....

[Exmantaa]

OK, on my yellow VX: x2 pin 12 green/pink go to 86 (did not check the X2 connection) .5 brown goes from 85-87 large brown goes from 87 out large brown goes from 87B out brown/pink goes from 30 to x2 pin 1 So same as yours It's wired up different, but funtion stays the same; green wire is switched to ground by ecu and that triggers the relay which powers up the fuel pump circuit to the cut-off switch. After cut-off it's to the pump relais K16...

Edited by Exmantaa, 06 October 2012 - 01:41 PM.

[NickB787]

my concern is when i removed the extra relay I left the green/pink wire isolated because I didn't see the other end which had beed cut well back in the loom tape. I then tried the car and I am concerned I may have done some damage somewhere, ecu? as it is now when you turn the ignition on you get the normal lights but the the lcd display goes blank after a few seconds

Edited by NickB777, 06 October 2012 - 01:45 PM.

[Exmantaa]

Green wire is just switched to mass by the ecu, so can not harm your engine. (Or you should short circuit it with a +12v feed, but that will probably blow a fuse.)

[NickB787]

all fuses are ok I am glad to say Matt do you have your obd available wonder if that will tell me anything

Edited by NickB777, 06 October 2012 - 02:08 PM.

[techieboy]

Yep, will pop down now with laptop and a scangauge.

[Exmantaa]

OBD will not tell you much. What is now the problem(s)?

[Mike (Cliffie)]

The Stack goes blank and the fuel pump is not priming. Nick has an in tank as well as an 044 and swirl pot.

[Exmantaa]

Better use a multimeter then to see what is doing what...

[techieboy]

OBD will not tell you much.

It told us nothing. There's definitely something electrically weird happening.

[smiley]

The Stack goes blank

For some reason that sounds like earthing.
Good luck hunting it down.

[Exmantaa]

*** as it is now when you turn the ignition on you get the normal lights but the the lcd display goes blank after a few seconds

Sounds like you're "priming" the Stack and after a few seconds it goes out. Like the fuel pump.

[vocky]

my concern is when i removed the extra relay I left the green/pink wire isolated because I didn't see the other end which had beed cut well back in the loom tape. I then tried the car and I am concerned I may have done some damage somewhere, ecu? as it is now when you turn the ignition on you get the normal lights but the the lcd display goes blank after a few seconds

green/pink is the OV supply from ecu to power the relay coil on K18, so if not connected the relay would just do nothing - which appears to be what is still happening

Edited by vocky, 06 October 2012 - 04:59 PM.

[Exmantaa]

my concern is when i removed the extra relay I left the green/pink wire isolated because I didn't see the other end which had beed cut well back in the loom tape. I then tried the car and I am concerned I may have done some damage somewhere, ecu? as it is now when you turn the ignition on you get the normal lights but the the lcd display goes blank after a few seconds

green/pink is the +12v supply from ecu to power the relay coil on K18, so if not connected the relay would just do nothing - which appears to be what is still happening

The green/pink should be a switched ground from the ecu. (through X2-12)
Result is the same with the relay not switching, but easy to check with a multimeter and shortcut to a ground to test the K18 relay function.

FP relay K16 should receive a +12v power signal from the ecu through X2-8, white/violet wire.

[vocky]

so it is, editted it my excuse is I've just spent seven hours solid working on a vx220

Edited by vocky, 06 October 2012 - 04:59 PM.