One of the biggest downfalls to a aftermarket throttle body is the fact that it's incredibly difficult to obtain a rock solid idle because they don't have provisions for our OE IAC motor. This article shows one way to add your IAC back into the system no matter which TB you run.
This install is on my buddy Dan's 1G, which runs a '96+ 4.6L Mustang throttle body. It has no IAC provisions and his car struggles to idle.
First things first; search the web for part number "E9T170". (Credit to Nicole Decker on the DSM Tuners Facebook page for sharing this part) It's an Evap purge control valve that Nissan used to control emissions on some of their models. Basically all it is is a Mitsubishi made stepper motor (ISC motor) mounted in an external housing. There are many on eBay right now for under $50. Some are a plastic housing and some are aluminum - either housing should work but I'd recommend getting the aluminum housing one so that you can use parts of the sensor as well (more on this later). I paid $25 shipped for the one that I bought.
Pics of the housing:
And here's a comparision of the stepper motors. Notice the differences. The tip that seals in the housing is different. As is the electrical connector.
DSM on the left, Nissan on the right.
So, this means we need to use parts of both to make it work. We need to use the lower housing of the Nissan motor along with the upper half of the DSM one. Start by removing the three screws on the top side.
This install is on my buddy Dan's 1G, which runs a '96+ 4.6L Mustang throttle body. It has no IAC provisions and his car struggles to idle.
First things first; search the web for part number "E9T170". (Credit to Nicole Decker on the DSM Tuners Facebook page for sharing this part) It's an Evap purge control valve that Nissan used to control emissions on some of their models. Basically all it is is a Mitsubishi made stepper motor (ISC motor) mounted in an external housing. There are many on eBay right now for under $50. Some are a plastic housing and some are aluminum - either housing should work but I'd recommend getting the aluminum housing one so that you can use parts of the sensor as well (more on this later). I paid $25 shipped for the one that I bought.
Pics of the housing:
You must be logged in to view this image or video.
You must be logged in to view this image or video.
You must be logged in to view this image or video.
And here's a comparision of the stepper motors. Notice the differences. The tip that seals in the housing is different. As is the electrical connector.
DSM on the left, Nissan on the right.
You must be logged in to view this image or video.
You must be logged in to view this image or video.
You must be logged in to view this image or video.
So, this means we need to use parts of both to make it work. We need to use the lower housing of the Nissan motor along with the upper half of the DSM one. Start by removing the three screws on the top side.
You must be logged in to view this image or video.
Last edited by a moderator: