[CODE4]

My friend with a '79 280Z performed this:

He bought a Autometer A/F gauge (the LED one with lean, stoich, and rich indicators). Now, for most people knowing their mixture is not helpful if they do not know how to adjust it IF it is running too lean/rich. What he did was wire a Potentiometer in place of the coolant temp. sender in his water neck so he can manually adjust the coolant temp as far as the ECU is concerned. I thought it was a pretty cool idea and that I want to do the same with my DSM. Their are two coolant sender units threaded into the water neck on my 99 RS, one is for the gauge, the other is for the ECU.

Chiltons manual says the sender has the following resistances: @77 deg F -9-11 kilo Ohms, and @212 deg F 0.6-0.8 kilo Ohms. Grab a pot. covering those ranges and you can force the ECU to run the mixture lean, rich or anywhere in between =]

It is a cool mod in my opinion and when I perform it I will post pics.