Possible evap system problem? Only sets P0172 rich bank1 pending code after adding fuel enough to get over 3/4 tank. 900rpm goes along with the code. Don't see high + LTFT. Somehow it sets right after we fill up. Doesn't turn on SES light. Most time code will clear and idle will go back to normal.
We look at data with torque pro enough to see things aren't out wack from normal. What ever causes the code doesn't last long. If car sits next drive cycle the code is gone.
Any idea?
Thanks,
JS
We look at data with torque pro enough to see things aren't out wack from normal. What ever causes the code doesn't last long. If car sits next drive cycle the code is gone.
Any idea?
Thanks,
JS