The car runs great when cold, but once it heats up it tries to cut off and loses power. The car has headers with straight dual exhaust, and what appears to be one small catalytic converter on each pipe just behind each O2 sensor. I was wondering if they are catalytic converters, could they be causing this problem? I had diagnostics run on it and received eight codes, all representing air/fuel mixture.
P1443-cntrl system control valve malfunction
P0156-02s ckt malfunction 2/2
P0401-EGR flow insufficient
P0420-catalyst efficiency below threshold bank 1
P1131-insufficient switching 02s 1/1 sensor/lean
P1151-HO2s 2/1 insufficient switching lean mean
P1071-system to lean bank 1
P1074-system to lean bank 2
have the same problem?
Tuesday, September 13th, 2016 AT 7:14 AM