Injector Issue

[leech_]

god damn thats bad compression i guess its an unfortunte thing with most of you guys that have 13 - 15 year old cars putting as much power through them as most of you have they are bound to pack it in sooner or later but as yousaid build up something bugger and better gl stirlo

[Gus-]

/me votes for os 3ltr

thats really bad luck for the compression test

[rb25detcalais]

I am connecting up my injectors from the ECU... my question is does the ECU supply positive signals or a negative signal. The reason I ask is the common lead for the injectors is currently connected to igntion (+, pin 58 on the ECU) and then back to the ecu's individual injector pins. NO, the car isnt running properly which is why I ask what the ECU outputs. So obviously if they are both connected to positive, it could be a problem. I have 2 pin-out sheets that say the exact opposite.

One says that the individual injector signals are ground, and the other says "Injector No. X" and has the 3 separate pins at the bottom of the connector as "Injector Ground" can anyone help?

[Stirlo_GTR]

The injectors should be +12V normal, and grounded to make them fire. They should appear positive with ignition but not running. Its all in the PDF Manual.

did you buy positive injectors or negative ones? should shouldnt need to do anything but replace the ones you had in there.

we are talking RB26 right?

[rb25detcalais]

Stirlo It's a RB25. I am just wondering whether they are grounded through the computer or whether the common wire is negative...