so the Ultragauge came in today and the following codes were found:

P1590
P0174
P0171

Pending:
P0150
P1172
P1668

so I looked-up the codes for a basic understanding of what they mean. my question(s) is/are- what order should I begin doing the remedies, do I do the O2 sensors first? should I clean the MAF sensor and try again, or just look to replace? The good news is that I have an operating temp of 185-188, 13.8-14.0 volts and apparently about 12mpg.

 

I'd go o2s fo sho. mixed opinions on the maf cleaning and if it really does any good. doubt it hurts to try.

 

12mpg is good news?

 

Yeah, it seems like MAF cleaning is futile, but might as well try it.

 

I second that. I've cleaned two with the right cleaner and they worked for maybe 15 minutes.

 

Take care of your O2 sensors. clear the codes and go for a a drive of at least 20 min and around 50 MPH, this helps reset the ECU. Then see what codes re-occur. I would stay away form trying to clean the MAF. it is not designed as a piece to clean. But you may find that after you do your O2's and clear the codes that your MAF is no longer getting errant info and works just fine. If not just replace it.