I have a CEL code P0021, says

"A code P0021 refers to the VVT (variable valve timing) or VCT (variable camshaft timing) components and the car's PCM (powertrain control module, also called an ECM). That consists of a few different components but the P0021 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is above a set limit (over-advanced), the engine light will be illluminated and the code will be set. The "A" camshaft is either the intake, left, or front camshaft. A P0021 engine code is basically the same as a P0011 code, except this is for Bank 2, not Bank 1."

Curious to know if others have seen this and if so what the cause actually is. I have a severe loss in power; can hardly get up my drive way (1/4 miles steep hill). Any help, input or advice is much appreciated. Thanks, Ryan

 

What kind of car?

 

I guess that would have been a good thing to mention. 1997 Volvo 850 Wagon Non-Turbo

 

Well an update on the issue. Recently I had an axle replaced because the rubber seal to the transmission when bad. Well that same seal came undone for whatever reason causing all the issues I was having. (No transmission fluid at all). I'm assuming it threw a faulty code because of it. Added a quart before heading to the garage and it cured the sluggishness and exceptionally high revving and low speed. At least it was covered under warrantee for the part and I have to pay nothing