Hi,

I need to adjust my '92 Max GXE idle speed to 750,
mine is running 600 right now. According to
Chilton's, I "MUST" close Auxiliary Air
Control(ACC) on the Electronic Control Unit(ECU)
first. But I can't find ECU's location by just
looking at the picture in Chilton's. Anyone knows?
Anyone done this by yourself before? Seems like a
lot of checking the lights after adjusting, are
these steps really necessary? Thanks in advance.

T2029

 

Is located on intake manifold right next to the Throttle body. What they mean is to unplug the connector and adjust your idle. Once you have it right then plug the connector back in.

 

Hi,

Thanks for the reply. Sorry I'm not familiar with car components, only common ones, like spark plugs, brake fluid bottle, water bottle, etc. Do you mind give a specific location, something like 2" north to water bottle, or 3" northwest to the air filter, etc? Can you see the ECU from top or it hides below some hoses? Can you see the screw on the ECU without removing any cover? Is the screw facing upwards, left, right, or down? From the picture of Chilton's, ECU is something like 1"x5" box with a screw near the left end. Is that right? Thanks a lot.

T2029

 

The ECU is located in the middle console, to the left of the passenger side foot area. If you look down in that area you'll see a panel that can be taken off. Once you take that off you'll see a device with two LED lights(ECU) and your in business. Good luck!

JF