51 Switch Signal
Diagnosis
* No "IDL" signal, "NSW" signal or "A/C" signal to ECU, during diagnosis check.
Trouble Area
* A/C switch circuit
* A/C switch
* A/C amplifier
* Throttle position sensor circuit
* Throttle position...
Well, it looked like it was coming from everywhere because it was. It turned out both valve covers, both cam seals, both #1 caps and the CPS were all leaking. Not to mention the PS reservoir was leaking out of the cap and both lines (which I knew already).
So now, all thats left is the leaking...
Interesting, after I got digging into it today, it was pretty apparent that the dealership who rebuilt this motor the 1st time really didn't pay too much attention to the FIPG notes in the TSRM. Surprising it didn't leak more, earlier.
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