I have a S4 jspec TII motor using a USDM wiring harness. My question is about the injector size. I had to cut the injector plugs off of the jspec harness and splice them into my USDM harness. The injectors on the engine (along with the harness plugs) are a magenta color. And I can't remember the USDM color....

So...what do you guys think?
What possible injector sizes could I have?

 

is this on a S4 or???

you shouldn't need to change the injector plugs, I suspect that you have a 87.5-88 engine and are using it with a pre 87.5 harness.

 

Yes, it's an S4 TII. Is there any issue to using the pre 87.5 harness with an 87.5-88 engine?

 

yeah, the injectors would be wrong

 

87TII injectors are low impedance and 88's are high impedance. You should never use low impedance injectors with a ECU that is mapped for high impedance injectors. However, you can use high impedance with a ECU taht normally uses low impedance.

In other words, the 87 and 88 injectors are different and I believe the plugs are aswell. Put a ohm meter to the injetor and see if it is high or low impedance. A low impedance injector is between about 2-5 ohms where as a high impedance is between about 12-16.

 

What are the numbers embossed on the injectors. Something like 19550-1370? Or what.

Yeah, what they said above also. Using colors to determine injector size Sucks and is B.S.

 

thanks for the info guys...

 

Don't forget to fix you're door handle too while you're out at the car.

 

HAHAHA

 

Ok....don't you have a similar problem there? lol....