Hello, I recently bought a 1993 Ranger 4x2 automatic running, but in rough shape. It has an IAC valve mounted on the motor with the 45 degrees electric plug, in the cab is an old fuel pump (it was replaced recently by the previous owner) and an IAC valve with the other type of electric connector (not angled- comes out the end of the valve). I'd like to know which one is correct so I can purchase a new one. I plan on replacing the IAC, the EGR, the DPFE, spark plugs and wires, rotor cap, EGR valve control solenoid and miscellaneous vacuum hoses. The vehicle is throwing one code 327. Looking under the hood I also seen that the Air Charge Temp Sensor is broken and laying on the engine. So, it too will be replaced. I'm quite certain that the broken sensor is probably causing my code. The truck starts and runs/drives, but when cold I have to flutter the pedal a little to keep it running. Once warmed up it does fine. But, my main question today is which type of IAC I need to buy? The straight one or the one with the 45 degrees connector?

 

As long as the plug fits, I don't think it matters.
https://www.rockauto.com/en/catalog/...ac)+valve,6072
Welcome to the forum!

 

Thanks for the response! I'll look at the wiring loom today and see if I can figure out where it naturally laid. At the angle where it currently is or straight out the end of the IAC. It makes sense that the differences is due to clearances of the wiring loom. Surely the wires will reflect where they had lain for years!

 

so it appears that I need the one with the 45 degrees angle. If I used the straight one the wires probably wouldn't stretch and it may interfere with other things at the front of the motor. The wires naturally lay where the angled plug is. I don't know why the PO had the other straight plug IAC in the cab? I guess I should have studied the vehicle a little before I posted.