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Re: Tach to Pcm
Quote:
Originally Posted by LeesTruk
You're gonna need what's called a "Pull-UP" resistor. Just put a 1K ohm resistor from your tach power wire to the tach signal wire. Also, if using an aftermarket tach, make sure it's set for a 4 cyl. engine. The PCM tach output is designed with that sort of signal pulse
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I have a in dash Factory style tach but not factory original How do I change it to 4 cyl or can I
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