negative timing on a tech 2
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Joined: Dec 1969
Posts: 27,728
From: Little Rock, AR
Re: negative timing on a tech 2
It's not a problem at all 
. Advanced timing (which is what the timing most always is) is actually a negative number. That's because it is BTDC (before top dead center). If it was + or ATDC, your engine would not even run. Different scanners display it differently, depending on what terminology they use to describe timing.
. Advanced timing (which is what the timing most always is) is actually a negative number. That's because it is BTDC (before top dead center). If it was + or ATDC, your engine would not even run. Different scanners display it differently, depending on what terminology they use to describe timing.
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