has anyone used additional coolant temp sensors as fuel and oil temp sensors?
Im attempting to do this and I cant get the wiring right.

Ive tried both using the AVI / 5V lead and the AVI / ground. With the 5V lead I get 4.95v (room temp) back at the ECU that moves to 5v by the time the sensor is warm to the touch. When a ground is used I get .17v (room temp) at the ECU that drops to .01v when the sensor is hot to the touch. neither way of wiring seems to get results that can even work. Any suggestions?

 

You need this.

http://www.lms-efi.com/catalog/produ...products_id=54

 

Your running direct voltage to the sensor normally you would run something called a current limiting resistor which is based on the sensor you are using.

http://www.innovatemotorsports.com/f...ead.php?t=6097

When doing this you choose a resistor close to the mid range of the sensor you are using. Please note that you will have a new resistance/voltage curve once this is done.

Chris is that what you are doing with that adapter?

 

awesome, I thought it would be something to do with needing a 5v signal wire.

Chris do I need a new calibration curve with your connector? Do you provide it?

 

Yes.

The calibration curve would match the sensor you are using. So if you're using a GM type coolant sensor to do oil temp you would use the same curve as the coolant temp sensor.

 

The calibration file should be within the Calibrations folder for ECU Manager, just use the "Haltech Coolant sensor" file. Should work just fine.