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2fst4u
03-30-2011, 11:36 AM
I've heard mixed things in reference to the polarity of fuel injectors. I'm putting new plugs on my wires and want to make certain that i put them in properly. I'll be doing the work tonight and need an answer as quick as possible. this is on a 2.4L. Thanks for your help

[ion] C2
03-30-2011, 11:48 AM
You can wire them either way and it will operate the same.

I've done it.

2fst4u
03-30-2011, 11:50 AM
thanks buddy. just wanted to make sure. do all of them need to be the same or anything?
i can get the polarity right if i knew which side of the GM supercharger injectors is supposed to be what

Cliff8928
03-30-2011, 12:52 PM
The official way is terminal "A" is the grey (positive) and terminal "B" is the output from the PCM.

Cylinder

1=Black
2=Lt Grn/Blk
3=Pink/Blk
4=Lt Blu/Blk

[ion] C2
03-30-2011, 01:43 PM
thanks buddy. just wanted to make sure. do all of them need to be the same or anything?
Either direction you push current through, it will open the injector. There is no inherent polarity.

As long as each injector has the two colors going to it that Cliff mentioned above, they'll work, regardless whether the black is on one side or the other of the injector plug.

2fst4u
03-30-2011, 01:56 PM
sounds good guys. should have the car running right and inspected by the end of the week. haven't driven the car since 2006. inspection expired 2/07. lol

zzyzzx
03-30-2011, 09:21 PM
C2;579504']Either direction you push current through, it will open the injector. There is no inherent polarity.

I agree with the above statement.

2fst4u
03-31-2011, 09:46 AM
the injectors are in. everything's running pretty well. thanks for your help guys. looks like my car's back on the road.
the only small issue i see is the trac off light is on. i'll have to look into that one.

[ion] C2
03-31-2011, 10:19 AM
IAT, O2 sensor, ECT, etc. can turn it on. I don't remember what else but it usually sets a DTC too.

2fst4u
03-31-2011, 03:49 PM
we'll be hooking it up to the computer to dial in the tune again. have to see what the results are then