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    A/C orfice tube

    I have now repaired the a/c on 2 LX cars, a '91 and a '92. I converted them both to 134a while I was at it. They both started out with working R12 a/c. When converting I had to install an orfic tube on in the high pressure line going into the evaporator to get them to cool. How does the a/c work...
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    How to check codes - '91 4 cylinder LX

    My daughter's '91 4 cylinder LX has a check engine light and has started rattling the values when the engine is under a moderate load. How do I check the codes in the ECM? I have a parts car that I can get parts from if I can figure out what I need. The last car I had that rattled this way was...
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