NOW COVERED BY OUR NEW 2 YEAR OR 24 MONTH WARRANTY!

The 8691V ECU Monitor provides visual indication of several ECU functions via LEDs on the front panel. These include Start Run Switch, Fuel Pump, Hall Pulse, Fuel Injector Pulses, etc. A digital voltmeter provides sensor voltages, O2 sensor ground, and battery voltage displays. The Coolant Temperature voltage is quite useful in assessing correct operation of your cooling system, specifically the thermostat. As the coolant temperature changes, you can clearly observe the sensor voltage following the change. The Battery Voltage display can alert you in advance of any irregularities in your battery / charging system, as the voltage is displayed to .01 volt accuracy. Many times, ECU sensor variations or failures occur after warm-up, or at different engine speeds, and the ECU Monitor allows these signals to be easily monitored.

We supply this unit in an easy to install "semi-kit" format. By "semi-kit", we mean that most all of the electronic and mechanical assembly has been completed.

First we design our printed circuit boards and have them manufactured by Express PCB in Oregon. We install and solder the electronic components on the circuit boards, and then run a preliminary functionality test on the assembled board. The digital meters are then modified to function in a 12VDC environment by installing 2ea 1% resistors and a decimal point jumper wire. The meters are calibrated using a Tektronix  DC Power Supply and Digital Voltmeter to display the correct voltage within 0.01V @ 12V. Pacific Powder Coating in Sacramento manufactures our front panels, then adds their durable and attractive powder coating and silk screens the text legends. When we receive the front panels, we marry them to the circuit board assemblies, and then wire the digital meter to the circuit board. You receive this assembly completely assembled and tested, pretty much ready to go in a few minutes, after you install the 9V battery, and install the front panel in it's ABS case with four screws. Add rubber feet if you like - That's it!

The only soldering necessary is to solder our prepared 12" cable to your ECU. There are only 13 wires that need to be attached, and the wire ends are pre-stripped, tinned, and bent into small hooks for a simple and fast soldering job. Each wire is also labeled with a number corresponding to its destination on the ECU board. Once the 12" cable is in place, you simply reinstall your ECU, connect the 9' Cable between the 12" Cable and the ECU Monitor, and you are ready to go!