hey i have a 99 ram with a 5.9L that tripped a check engine light. i went to autozone and it ran the code PO175 system too rich. what are some things that i could check and any ideas on how to fix it without paying the "man" at the shop? thanks!

 

had the same problem finally went away after installing the o2simm from fastman

 

Check your plenum, spark plug , spark plug wire, and injector.

 

try to clean your O2 sensors with some electric parts cleaner.

P0175 FUEL SYSTEM TOO RICH A rich condition has been reported by an abnormally large lean correction.

 

Alldata info

Coolant sensor calibration failure
engine mechanical problem
Fule pressure out of specification
Upstream O2 sensor heater
Fuel system rich or lean does not reoccur