Vectra b 2.5 v6 wiring loom.

[big e]

Need a little info on a few wire's in the loom.

Firstly the sai solenoid wiring, im thinking i can remove this and the solenoid as its not going to be used and the plug only has 2 wires in, ones an earth and the other goes into the x7 plug and NOT the ecu plug so shouldn't put the eml on if its not there, would i be right??.

Secondly ive removed the auto crap from this loom and found one of the 2 wires that went to the ecu is there in my original non auto loom so just need to know what it does if pos. Its in pin no43 and is a black wire with a red tracer..

Cheers peeps..

 

[rc]

When removing the sai usually you leave the sai relay in and ditch everything else (the pump etc). If you don't have the relay in it throws up a em light, if you leave it in it doesn't. The ecu still clicks the relay on and off but it doesn't actually power anything more. The ecu needs to see a resistance hence why the relay needs to stay in. You might be able to fool it with a resistor?

 

[rc]

Just looked at the wiring and it looks like the ecu earth switches the sai relay. So it might just need to see 12v at the brown/grey pin 37 not to put the em light up, or just leave the relay in

Found a black/red wire from the engine ecu to tcm, but can't see if it does anything else.

 

[big e]

Ok cheers mate, just trying to get rid of as much crap as i can to make it look less cluttered lol..

 

[rc]

Well you can 100% get rid of the motor and solenoid. The relay is one of those pink ones batched together in the engine loom, just keep that.

 

[big e]

Brilliant cheers mate..