Engine Performance problem
1999 Lexus RX 300 6 cyl All Wheel Drive Automatic 133802 miles
original codes p0300,302 303 306 0330 0765. Changed plugs and swapped coils. Misfires moved to cylinders 1 and 5 suggesting those coils are no good. Car runs worse now and won't rev beyond 3000 rpm. New codes 0300, 301,330,765,1320,305.I expect to replace 2 coils, but I also think the air fuel mixture sensor(one or both) is bad. I may be wrong, but this would account for the restricted engine rpms.
Thursday, November 5th, 2009 AT 9:10 PM