Big Daddy
Senior Member
- Joined
- Dec 21, 2011
- Posts
- 123
- Reaction score
- 244
- Ram Year
- 2009
- Engine
- Hemi 5.7
Good Morning All
I have a PO 171 code, lean bank1. I checked all the vacuum lines, PCV seal, sprayed the intake with Carb cleaner, same on the throttle body. Before going to the injectors and O2 sensors, I have to ask, how do these hemi's measure air intake? I do not see a MAF or sensor.
Also, the fuel mileage has not been affected but it does stumble at idle when stopping at a red light. The idle will drop from 600 RPMS, down to 400, stumble and go back to 600.
I have a PO 171 code, lean bank1. I checked all the vacuum lines, PCV seal, sprayed the intake with Carb cleaner, same on the throttle body. Before going to the injectors and O2 sensors, I have to ask, how do these hemi's measure air intake? I do not see a MAF or sensor.
Also, the fuel mileage has not been affected but it does stumble at idle when stopping at a red light. The idle will drop from 600 RPMS, down to 400, stumble and go back to 600.
