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I'm taking mine in Tuesday, same warning. Code P1433 and 1432. Likely a vacuum valve that controls PSE for me.
You may be having same issue. Hard to tell without reading the code(s)
There are other valves that throw the same error. Heater etc. not saying that's your problem, just message is similar to mine. Could also be thermostat is stuck open.
If you have the GMG exhaust (which I believe is valveless) make sure the vacuum line to the original PSE valves is plug. It has been reported that leaving this line unplug will cause temp problem (besides other).
If you have the GMG exhaust (which I believe is valveless) make sure the vacuum line to the original PSE valves is plug. It has been reported that leaving this line unplug will cause temp problem (besides other).
That was the exact problem, line was originally capped and over time eventually fell off. New one installed along with some epoxy.