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JFP in PA · 06-11-2011, 12:35 PM

Let me guess: The car (or at least the compressor) was not running at the time? If that was the case, the numbers you posted are not anything meaningful.

With the compressor running at 20C (68F) you should be at around 12.5 Bar (181 PSIG) on the high side, and around 1.55 Bar (22.5 PSIG) on the low. Both low and high side values will vary with ambient temps.

You are also aware that a PSTII/PIWIS can read A/C system condition and faults, even from memory, as well? Usually cuts diagnostics time way down.

It ain’t always as simple as it looks………….

And just a by-the-by, there was no untoward “demeanor” implied or intended in that response, it was totally factual. We see more A/C systems damaged by badly executed repair attempts than you might imagine. One of the most common: Over filling the system because it isn’t blowing cold enough, resulting in a $1500 to $2000 repair when the original problem could have been fixed for less than $100-200…….

06-11-2011, 12:35 PM	#14
JFP in PA Registered User Join Date: Feb 2005 Location: It's a kind of magic..... Posts: 6,277	Let me guess: The car (or at least the compressor) was not running at the time? If that was the case, the numbers you posted are not anything meaningful. With the compressor running at 20C (68F) you should be at around 12.5 Bar (181 PSIG) on the high side, and around 1.55 Bar (22.5 PSIG) on the low. Both low and high side values will vary with ambient temps. You are also aware that a PSTII/PIWIS can read A/C system condition and faults, even from memory, as well? Usually cuts diagnostics time way down. It ain’t always as simple as it looks…………. And just a by-the-by, there was no untoward “demeanor” implied or intended in that response, it was totally factual. We see more A/C systems damaged by badly executed repair attempts than you might imagine. One of the most common: Over filling the system because it isn’t blowing cold enough, resulting in a $1500 to $2000 repair when the original problem could have been fixed for less than $100-200……. __________________ “Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein Last edited by JFP in PA; 06-11-2011 at 01:18 PM.