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Old 04-18-2012, 08:10 AM   #1 (permalink)
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mpg reporting backwards? 95 saturn

I hooked up my mpguino yesterday and tested it out. The miles per hour are right on (with the speedometer) so I'm sure the vss input is right. The instant mpg screen seems to read backwards, when i accelerate, the mpg goes up in the hundreds, when i coast it goes down to single digits, and acceleration will bring it up again. Any ideas on what to adjust?

I have a 95 Saturn sl1 (1.9 liter 4 cylinder. I am certain I tapped an injector wire from the ecu. I have 12 volts, but must redo the '+' side because I didnt read it should he an always on connection.

Thanks for any help!

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