Need Help! 91 Vn Running Rough!

[Jimmee]

Yeah I did that, and didn’t help so I put Brand new injectors in and still the same, and yeah just not running on 2 and 5 at all and only slightly on 4. ( I can take 4 off and doesnt do anything until having it off for about 5 secs, then slowly wants to die) but yeah I can have 5 and 2 unplugged and rev the car it changes nothing. I’ll have abit more of a look at the wiring when I get home. Cheers

 

[MikeC]

An old school idea. Check the plugs on 2 & 5 after idling. If they're wet the injectors are spraying but the plugs are not igniting the fuel. If the plugs are dry the injectors are not spraying.

 

[Jimmee]

Thanks mate I’ll give that a go when I get it going.
I was just out there trying to get it going it’s now not bringing the reds up at all. So I was under the dash looking at the fuses and started fiddling with a wire that went into a sensor/switch just above the fuse panel. And all of a sudden the reds came up better than ever went to start it and it turned over but didn’t quite start... that’s all I got out of it won’t even go back to reds. Does anyone know what this sensor is ? It goes into a black box kind of thing and has 2 wires going to it.

 

[Not_An_Abba_Fan]

Aftermarket immobilizer?

 

[Jimmee]

Aftermarket immobilizer?

Um possibly. I’m pretty sure the guy that had it before me must have bypassed the immobiliser there is a small black box under the passenger side dash, the wires that go to that have been bridged