My car throwing out these two codes time to time. It appears when I do complete stop at lights or parked. RPM makes one jumps to 1200-1500 rpm and slowly decreases to 600rpm. This jump happens only one time. At the same time, engine light opens and P0012 and P0015 codes appears. For an unknown period of time, the engine light stays on and then goes away until another event. When I get these codes, there is no power lose on the engine.
What is done so far:
# Oil and oil filter changed. Did not help.
# Solenoid valves cleaned and then replaced (because oil was leaked and metal brackets that have screw holes are rusted, it was not possible to fit them tightly). Did not help.
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I seen that head gasket leaking some oil but it is related? I am constantly checking oil and coolant levels and make sure they are not low.
My car throwing out these two codes time to time. It appears when I do complete stop at lights or parked. RPM makes one jumps to 1200-1500 rpm and slowly decreases to 600rpm. This jump happens only one time. At the same time, engine light opens and P0012 and P0015 codes appears. For an unknown period of time, the engine light stays on and then goes away until another event. When I get these codes, there is no power lose on the engine.
What is done so far:
# Oil and oil filter changed. Did not help.
# Solenoid valves cleaned and then replaced (because oil was leaked and metal brackets that have screw holes are rusted, it was not possible to fit them tightly). Did not help.
I seen that head gasket leaking some oil but it is related? I am constantly checking oil and coolant levels and make sure they are not low.