Miata Turbo Forum - Boost cars, acquire cats. - Bouncy oem tach but laptop and logs 100%

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3barboost

01-18-2009 05:39 AM

Bouncy oem tach but laptop and logs 100%

Help !

My oem tach connected to tach output of the MS (spectre unit) is bouncing all over the place - sometimes it seems right then other times it just bounces

the laptop rpm is 100% stable, the logs show that crank input is stable

What have I done wrong ? the MS I have has the inbuilt tach output circuit

xitsam

01-18-2009 05:48 AM

check your Sparks ;)

Braineack

01-18-2009 12:42 PM

why did you need that circuit?

Ben	01-18-2009 02:26 PM

What year is your car?

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