a/c wiring

New Member Posts : 3 Reputation : 0 Join date : 2017-02-23

Hi all,

We recently swapped 2zz on my car and apparently a/c compressor doesn't kick in. Checked all the wiring and everything is intact. Jumped the pressure switch still no-go.

This leads me to believe that there's no rpm signal going to the a/c amplifier or if there is it might be too weak for it to understand. My tachometer is working using tach adapter so I assume the amplifier should also see that.

Does anyone knows how many volts an RPM signal needed for the a/c amplifier?

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