Hey all,

Finally got my ultra gauge up and working. However, i get an alarm for pending trouble codes P0150 and P0174 every couple minutes. I don’t have a check engine light. Is it potentially warning me some things are on their way out? Or is my ultra gauge the problem?

 

Pending means just that -- pending.

The conditions that may eventually lead to the Service Engine Soon light coming on.

Given those pending codes, you may have a Bank 2 upstream O2 sensor replacement in your near future.

Since you have an UltraGauge, you can set up a page to monitor O2 sensor activity real-time.

Here's a pic of the O2 monitoring page I have set up on my truck. Output volts are at the top for each cylinder bank, with short-term and long-term fuel trims in the four spaces below. Monitoring even just the O2 voltages would give you a window into what is triggering the pending codes.