Also, my air intake 'SNORKEL' mid section was flipped and misaligned. I messed it up myself due to the access to the tensioning bands... but corrected by following the printing on the snorkel section and figured out properly. Also - I used a smoke machine from a fuel transfer pump and a cigar, rubber glove over the intake.
I have a 2002 wrx and I was just casually driving and my check engine light came on and I had the code read and it was a po171 but I'm not sure where to location the vacuum hose
P0171 This code just means that there is unmetered air entering the system, there’s many possibilities of unmetered air, you need someone to smoke test the intake for leaks, it could be a vacuum leak or something else like a faulty valve.
P0171 is for system lean, this code means there is a fuel ratio imbalance, unmeasured air or unmetered air, not calculated by the ECM fueling system ,entering the combustion chamber fuel air mixture, which can be caused by multiple fault conditions, such as a faulty sensors or manifold systems vacuum leaks, faulty valve or purge control solenoid.
@@Shxftyy3 need to know some specifications on your specific vehicle like year making and model but genuinely it’s like manual-models 650 + or -100 to automatic-models 700 + or -100 rpm, on (ej series engine). Switches To high rpm 800-RPM with A/C on or for power steering idle up circuit But, varies based on year make and model engine series.
@@Shxftyy3 need to know some specifications on your specific vehicle like year making and model but genuinely it’s like manual-models 650 + or -100 to automatic-models 700 + or -100 rpm, on (ej series engine). Switches To high rpm 800-RPM with A/C on or for power steering idle up circuit But, varies based on year make and model engine series.
I seen a lot of videos on RU-vid with p0171 and p0440 none of them are correct about what's wrong with my car. It's not the air intake system. Trust me it's something that has to do with the fuel. I know that. It smells like gas when I start the car. And sometimes it has trouble starting like as if I'm out of fuel or as if the fuel pump's out. But it's a new fuel pump. And I have a full tank of gas. And the code that popped is p0440 and p0171. They came up at the same time. So it's not air or spark. Both of those codes have to do fuel. And I know because it smells like fuel when my car has trouble starting or when It has trouble starting. There's no visible gas leaks. So I need to find a video that's actually legit.
Sounds like you have a bad Evap system purge control solenoid,the DTC’s you have is for a Evap system fault, it could be stock open.,When it’s supposed to be closed Which would cause your symptoms.
