SR Speed Signal Question

[dan222000]

I have a Redtop SR20DET in my 1996 240SX with ABS & VLSD. If my speed sensor is not hooked up would it cause the engine to idle rough? I have just finished swapping over the motor and I am only getting signal to two injectors. I have spark on all four coilpacks and crank angle sensor has been set the correct way with valve cover off. The only thing I can think of is that I don't have the two plugs connected from the lower harness. The speed sensor and the reverse lights. Maybe they complete a circut that sends signal to the injectors. Or if that is not it my computer might be messed up? Does anyone know where I should look? I will get under the car today and connect the two plugs on the lower harness and see if that works. I just wanted to know if anyone knew if that had anything to do with not getting signal to the injectors.

Thanks,

[tdown]

Those two plugs would have no effect on the idle of the engine whatsoever.

[PyR0NiAk]

Check your computer for codes...

[dan222000]

I have just check my computer for codes and there are no codes. I am not getting any signal to injectors #1 & 3. I check with a multimeter for signal at the ECU and there is signal going out and I even plugged up my friends good ECU and still no signal. I believe I have a wiring problem with my harness.

[PyR0NiAk]

apparently so...

1) Did you make the harness yourself?

2) What was used to splice the wires?

[240SXmotoring]

replace those 2 signal wires going to the injectors.