2000 Isuzu Trooper codes P1290,P1125,P1295.How to shut off Check engine light

I was working on my 2000 trooper the other day and i was going to rev up the engine so i turned what i thought was the troddle but instead the engine died.I did this acouple of times untill the engine finally went into reduce power mode.I turned the key off and restarted the trooper and it ran ok but the check engine light came on.I went to local parts store and ran the codes and this is what showed up P1290,P1125,P1295.Under each one of them it said Manfacurer Contrl,Fuel Air metering.I cleared the code and reset the check engine light but it came back on the next day.Please tell me what i can do to keep the check engine light off,and fix the problem with codes.

Sort of a wild guess but it sounds like a vacuum leak. Maybe you dorked a line or pulled one off a fitting. Look at the PCV, EGR and any rubber tubes.