Aftermarket Tach for 454 P30
I want to add a tachometer to my 1993 Georgie Boy, its 454 P30 chassis. Do you guys have any recommendation for aftermarket tachs. Also where do I pickup the signal for the tach on 454? On my boat th...
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I'm surprised that '93 is still using the old ECM - guessing the engine is '92? I built the 2 transistor circuit. Use a USB to serial adapter. For the money, if I were doing it again, I would probably just buy the OBDI to USB adapter. 8192 baud. The update is way faster than you can see. There is a bazillion (OK only ~220) things I could look at, if I want to. You can create your own dash board, so you choose what you want displayed and how you want it displayed. Everything from the O2 sensor, to your BLM - meaning mixture correction, to injector pulse width. Virtually anything the ECM is thinking about, you can display it on the screen. Yours being an older ECM, you won't have as many points of data, but still anything you would ever care about.
