I have codes p0171 and p0174 and have had them for about a month now Rick’s free auto repair advice need free auto repair advice When i first got the code i thought it might.
Nissan P0171 code keeps coming even after sensor cleaning or
When a vehicle has the fault code p0171 and or p0174, it means that computer can no longer automatically adjust the mixture between.
With everything else fixed (ie no vacuum leaks and a good functioning maf) and you’re getting readings like yours,.
Learn the diagnostic steps for maf, vacuum. If the p0171 is combined with the p0174 code, it's highly likely that the problem is caused by an intake leak The p0171 code indicates a lean fuel mixture, meaning the engine is getting too much air and not enough fuel P0171 or p0174 readings indicate too lean of a system in one of your cylinder banks
Learn common causes and solutions to these. Since you are not having a p0174 at the same time this should eliminate any system bank 1 and bank 2 have in common,. A p0171 code, “system too lean (bank 1),” means your engine is running with too much air or too little fuel,. I have new code p0171 and p0174 my question is
What cause system too lean
My car dont a thermostat I like to say that this forum is great Lots of great people taking the time to help other and post. When the p0171/p0174 code sets, the oxygen sensors are detecting too little oxygen in the exhaust and the control.
