I have rpm problem in my 2001 isuzu rodeo. I have replaced sparks.The rpm jumps from 1000 down. Sometimes shifting from Drive to R the car goes off. Check engine light is on "Reduced Power" light as well. The car barely drives when Reduced Power light is on. I have pulled out two fault codes::::

"Manufacturer controlled fuel and air metering"

"Manufacturer controll vehicle speed idle and auxlilary inputs"


Any suggestion on what might be causing these fault codes, and the Rpm problem? Help would be appreciated Thanks!

What type pf spark plug did you put in there?