Retrofitting an '88 Legend FE display.

[nowhhs]

bobski asked: "Where are you tapping into power to drive the unit? I found that if you power it from an accessory circuit (stereo, cigarette lighter), it sees the injectors as running at 100% duty cycle until the fuel system power is switched on. This is simply a result of how the fuel injector circuit is set up and where the info display samples the state of the injectors."

I tapped the VSS and injector signal directly from the ECU. The switched 12vdc, the constant 12vdc, the ground and the lighting dimmer I tapped from the factory clock plug and haven't had any problems. I had been using a DMM to monitor the duty cycle of the injectors before installing this also using the same tap point without a problem. I never saw 100% duty. It may be a problem if you are tapping the injector under the hood and get the wrong side. I'm just guessing though.

I also wanted to address TomO's comment as to where to find these units. They seem to be standard on the Legend LS models, irrespective of the Bose stereos. When I was searching for mine, I had to go through several yards and several times got excited when I found Bose stereos based on what he had said, but didn't find a mileage computer until I found the LS. Thats not positive, but I'm reasonably sure.