Error codes

[McAllen Boxster]

I have a 2001 boxster 2.7, went to a DE last week, car started to misfire and when I got home I pulled with Durametric the following codes

P0139

P1126

P1128

P1130

P1133

Clear the codes, car misfires and loss power, pulled codes again and same codes come up. I clean the maf, still acting the same, any suggestions

[Loren]

P0139 Aging of Oxygen Sensor After TWC, Bank 1

Possible causes:

- Implausible signal from oxygen sensor

P1126 Oxygen Sensing Adaptation, Lower Load Range, Bank 1 – Above Limit

P1133 Oxygen Sensing Adaptation, Lower Load Range, Bank 2 – Above Limit

Possible causes:

– Incorrect signal from MAF sensor

– Intake air system leaking

– Fuel pressure too low

– Volume supply of fuel pump too low

– Fuel injectors fouled

P1128 Oxygen Sensing Adaptation, Idle Range, Bank 1 – Above Limit or Below Limit

P1130 Oxygen Sensing Adaptation, Idle Range, Bank 2 – Above Limitor Below Limit

Possible causes:

– Incorrect signal from MAF sensor

– Intake air system leaking

– Fuel pressure too low

– Volume supply of fuel pump too low

– Fuel injectors fouled

– Exhaust system leaking