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re: quirky A/C

Previously I reported:

<<The mechanic said the AC air output was so cold that there was no
question in his mind that the freon was OK. His diagnosis of the problem
was that the ECU was intermittantly receiving a bogus "engine overheat"
signal from the engine temperature sensor, which causes the AC compressor
to be shut off.>>

After posting the above "update" on my A/C problem, it occurs to me to ask
the following question:

If the ECU is really receiving an erroneous "engine overheat" signal
shouldn't I see an overheat warning message from the instrument panel???
[This message has *never* been seen during periods that the A/C compressor
fails to operate.] So is the mechanic full of it??

'89 100

         *  Phil & Judy Rose     E-mail:              *
         *                       pjrose@servtech.com  *