Originally Posted by
wazza
The times I've had a problem with rego or calibration error messages were either caused by the rego/procon shutters not opening (spring fallen off) or the shaft that hold the LSU in place had popped out on the rear side frame.
If you run auto rego adjust sim 50-22 and you get errors, first take the left side cover off, then the metal plate covering the LSU. Check the large shaft holding the LSU straight in position is correctly seated on the rear side. I've had a few pop out of place over the years causing this same symptom.
Otherwise, confirm the procon/rego sensor cover is opening. I've had the spring fall off inside it, with the solenoid trying to open the cover, but it wouldnt, therefore throwning random rego issues.
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