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Originally Posted by Pokerstar

I have an '01 Boxster S with 102,000 miles on it. I had a check engine light come on yesterday, with the following codes;

DTC Count = 5
Fault Number:P1130
Description:Porsche fault code 361 - Oxygen sensing adaptation
Repair Infomation:idle range bank 2
DTC Count = 5
Fault Number:P0300
Description:Porsche fault code 62 - Misfire damaging to cat.
Repair Infomation:converter
DTC Count = 5
Fault Number:P0306
Description:Porsche fault code 68 - Cylinder 6 misfire damaging to
Repair Infomation:cat. converter
DTC Count = 5
Fault Number:P0305
Description:Porsche fault code 67 - Cylinder 5 misfire damaging to
Repair Infomation:cat. converter
DTC Count = 5
Fault Number:P1128
Description:Porsche fault code 360 - Oxygen sensing adaptation
Repair Infomation:idle range bank 1

I reset the CEL (I have a Durametric)

Today, While driving (Right after changing the oil) the Check Engine light flickered, and the engine felt like it was stuttering a bit. The codes are;

Fault Number:P1130
Description:Porsche fault code 361 - Oxygen sensing adaptation
Repair Infomation:idle range bank 2
DTC Count = 5
Fault Number:P0300
Description:Porsche fault code 62 - Misfire damaging to cat.
Repair Infomation:converter
DTC Count = 5
Fault Number:P0306
Description:Porsche fault code 68 - Cylinder 6 misfire damaging to
Repair Infomation:cat. converter
DTC Count = 5
Fault Number:P0305
Description:Porsche fault code 67 - Cylinder 5 misfire damaging to
Repair Infomation:cat. converter
DTC Count = 5
Fault Number:P1128
Description:Porsche fault code 360 - Oxygen sensing adaptation
Repair Infomation:idle range bank 1

Does this indicate any issues that changing all 4 O2 sensors wont solve?

Thanks!

Your O2 sensors are simply reporting a mixture problem and are probably A-ok. The chance of all 4 sensors failing at once is non existent. Don't change em yet.

1128, 1130...Your car is running lean... to the point of misfire. Driving is not advised until you solve the problem as it can damage your motor. Common causes for this are an intake vacuum leak(loose oil filler cap, dislodged oil filler tube, failed AOS, torn or loose intake boots, loose gas cap, torn vacuum line etc). Another common cause is failed MAF sensor. Maybe no parts needed at all.

More info on P1128 and P1130 is available in this forum using the search function to see how others fixed/did not fix this problem. Good luck.