#3 injecter not working ??????????

[l3igl3ang]

I noticed today my car started missing real bad and had no power and cutting out and u could hear faint backfireing so i finly got it home and started pulling injecter plugs 1 by 1 and they all bog the car down but #3 it did nothing as if it was'nt even working at all. I swap out the injecters to make sure it was'nt a bad injecter and same problem and i noticed that all the injecters had been rewired for some reason they have back take on them all like some one wired them up so could that be a problem? i bought the car the way it is and have not done any thing to it.

 

[l3igl3ang]

I took it to a local performance shop and they said it could be anything from a bad harness to a sticking valuve they could cause the missfire/weak # 3 injecter. They said they can find the problem for $60 so i think i will pay them to figer it out for me

 

[knochgoon24]

At that price you could almost buy a whole set of stock injectors. You could test the harness buy sticking another injector and turning over the car. If fuel quirts all over the place you're good. Then if you stick the old injector in that same spot and the spray is all funky, you know it's a bad injector. You can find a stock injector cheap.

Now if it's the harness that's the problem, you'll need to peel off that tape and look for shorts.

 

[l3igl3ang]

yeah i did a injecter test i swaped to of them out put a good one on #3 and the #3 one in another spot and still #3 has a missfire. Im running 950cc FIC injecters


Could i test the harness with a ohms meter ?

 

[97 4G63]

Well just test every other injector clip on the harnes then test the #3 injector whith the ohms meter to see if all 4 of them are getting the same voltage to them.

 

[l3igl3ang]

Ok will do i will go buy a Ohm's meter today but what if the #3 an't getting the same amount of volts then what could cause a problem like that?

 

[Deepnine]

It could be a bad injector plug, resistor pack plug, ecu plug, a bad resistor pack or a bad/broken wire.
Or the badest: the ecu is broken.

 

[l3igl3ang]

I had the ECU sent off for repair not to long ago it had some leaky caps but surely if it was the ECU they would had noticed it during the repair.