The important engine P2132 Code helps the automobile engineer for solving the car engine problem. The powertrain of the car engine is here faulty and if you fix this problem from the car engine, the car engine problem should be solved. There are now 2 core reasons of cylinder deactivation used today, depending on the type of engine. P2132 code for the pushrod design which uses solenoids to alter the oil pressure transported to the lifters. In their misshapen state, the lifters are powerless to raise their companion pushrods under the regulator rocker arms, as in valves that cannot be activated and continue closed.