Lots of talk lately about coolant temps and how bad the OEM temp gauge is. I didn't want to spend much $, but wanted a real coolant temp display.
Found this and love it - 500 miles on it so far. It does way more than coolant temp:
Amazon product ASIN B07P37WY1R
Pros:
-easy set up and configure the screen - almost plug in and go
-totally customizable - you choose what and were things are displayed on the screen - easy to change
-reads and clears DTC / engine codes
-Has GPS for speed (no map or anything)
-adjustable speed calibration for the MPH. with 35" tires, this is awesome! Mine is set at 118% for 315/75/16 tires. I set the speed to match my Garmin GPS.
-the screen looks very high quality, Sharp, clear and easy to read. Not too bright for night driving. Looks like a smart phone screen, but no glare.
-Easy double stick tape install
-small!
-low cost
-one button to change setting etc...
-many other features I dont need or use (yet)
Cons:
-Needed to relocate OBDII connector to under the dash on the 1997 80 series - used existing screw, see pic below
-Beeps when firing up each start sequence and after key is turned off
-Only works when engine is running (I think). With key on, engine off, it disconnects quickly. I might be able to change this....
Good Luck and ROAST away!
Sorry about the $hit pics:
Found this and love it - 500 miles on it so far. It does way more than coolant temp:
Amazon product ASIN B07P37WY1R
Pros:
-easy set up and configure the screen - almost plug in and go
-totally customizable - you choose what and were things are displayed on the screen - easy to change
-reads and clears DTC / engine codes
-Has GPS for speed (no map or anything)
-adjustable speed calibration for the MPH. with 35" tires, this is awesome! Mine is set at 118% for 315/75/16 tires. I set the speed to match my Garmin GPS.

-the screen looks very high quality, Sharp, clear and easy to read. Not too bright for night driving. Looks like a smart phone screen, but no glare.
-Easy double stick tape install
-small!
-low cost
-one button to change setting etc...
-many other features I dont need or use (yet)
Cons:
-Needed to relocate OBDII connector to under the dash on the 1997 80 series - used existing screw, see pic below
-Beeps when firing up each start sequence and after key is turned off
-Only works when engine is running (I think). With key on, engine off, it disconnects quickly. I might be able to change this....
Good Luck and ROAST away!
Sorry about the $hit pics:
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