TwinTurbo.NET: Nissan 300ZX forum - Is the R134 A/C system just not that great in the Z?
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Subject Is the R134 A/C system just not that great in the Z?
     
Posted by Tanley (ATL) on June 11, 2016 at 2:19 PM
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Message Was doing some A/C diagnosis on my 94 TT the other day and ran through all of the system checks in the FSM. According to the performance chart in the FSM (conditions while I was running the performance check were 86°F ambient temp, 30% humidity) I should be getting a discharge temp at the center vents of 57°F - 60°F. I was right around 60°F, that seems too warm to me? Pretty sure my 98 Toyota Avalon has a much lower vent temp in the same conditions.

Seems the pressures were a little out of spec. on the Z, 45 PSI on the low side and 205 PSI on the high side.

Just wondering what everyone else is getting for discharge temps in similar conditions and any ideas on why the pressures are a little off?

     
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