P1117, P1121, Po131, Po151, Po137, Po157

[root_werks]

Well, this could very well be my first post on the 986 Forum! Nothing like an introduction with problems.

I picked up my 3rd 986 a couple of weeks ago. Been struggling with this one a little. MAF is 3 years old, cleaned it with warm water.

O2's are about 1 year old, I did replace one of them, all codes remain.

I've been checking the harness, cannot find any broken or shorted wires, but I'm still working on that.

Any other places to start looking?

Replace the MAF anyway? I ordred my OBDII cable so I can run the datalog. That'll help as well.

Thanks for any help,
Dan