Subject	R134a cars have a thermistor on the discharge
Posted by	JMartz on October 23, 2019 at 8:13 AM
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In Reply To	AC Compressor Cycling posted by Metacom on October 22, 2019 at 09:20 PM
Message	side of the evap called the TCA or Thermo Control Amplifier. It if fails and gets out of "calibration" (its temp vs resistance becomes skewed) or the evap is occluded with lint, leaves and bugs, the system will cycle. If the calibration fails the comp will get incorrect info. If the evap flows poorly (and pay attention to this one), the TCA WILL NOT be warmed by the heat of the cabin air. The TCA then "tells" the ECU to shut the comp down; as it "thinks" the evap is too cold. Have you cleaned the evap? There is NO CABIN FILTER in the Z32.
Follow Ups	AC Compressor Cycling - Metacom 21:20:17 10/22/19 R134a cars have a thermistor on the discharge - JMartz 08:13:02 10/23/19 Re: R134a cars have a thermistor on the discharge - Metacom 00:26:25 10/24/19 I believe the current ones will also work and are - JMartz 08:23:46 10/24/19 TCAs are easy to test with a battery, a volt meter - JMartz 08:27:05 10/24/19
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