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P0174

The two codes that you have provided suggest these possibilities, at minimum, which possibilities may exist alone or in combination: an air leak after the mass air flow (MAF) sensor, such as a torn intake boot, or bad intake manifold...

Hi there. The issue that maybe happening is the are fuel injectors that are not firing and there is a vacuum leak on the engine. Possible multiple sensors are not working causing the P2196 (https://www.obd-codes.com/p2196) and P2198 (https://www.obd-codes.com/p2198) codes to...

Hi there. The code P0132 in on for an issue with the upstream oxygen sensor. There could be a broken wire, frayed wire touching something metal, or the sensor could have failed. The code P0174 is on for the Mass...

The codes P0016 (https://www.yourmechanic.com/article/p0016-obd-ii-trouble-code-camshaft-position-a-camshaft-position-correlation-bank-1-by-jay-safford) and P0017 (https://www.yourmechanic.com/article/p0079-obd-ii-trouble-code-crankshaft-position-camshaft-position-correlation-bank-1-sensor-b-by-jay-safford) are related to the crankshaft location and the camshaft location. Check the camshaft position sensor and see if its plugged in. If the wiring harness is in good shape and the wires are...

Hi there. Check the fuel system and see if the fuel injector for cylinder number 2 is malfunctioning. The code P0402 (https://www.yourmechanic.com/article/p0402-obd-ii-trouble-code-exhaust-gas-recirculation-flow-excessive-detected-by-jay-safford) means that the EGR is not functioning and the code P0174 (https://www.yourmechanic.com/article/p0174-obd-ii-trouble-code-system-too-lean-bank-2-by-blake-griffin) means that Bank 2 is lean,...

Noise in exhaust systems occurs due to leaks as well as internal failure of the baffles in the muffler or resonator. So, just because there are no leaks, doesn't mean the exhaust system will be noise free. An [engine/exhaust noise...

As you know, this code relates to a lean fuel condition which can be caused by many different things, some of which you have already addressed. The oxygen sensors, which are part of your emissions system, read exhaust gases to...

Since you have codes that both banks are lean then the problem will most likely be from air entering the intake manifold after the mass air sensor. The idle air control valve should not have any air leaks from the...

Hey there. The codes you have downloaded simply relate to malfunctions in the "engine management system." It appears codes were set for oxygen sensor (https://www.yourmechanic.com/services/oxygen-sensor-replacement) voltage out-of-range, possible EGR (exhaust gas recirculation) problems such as a blockage, and a generic...

Hello. The codes listed are indicative of lean conditions on both banks A and B, as well as issues with the camshaft position sensor for circuit B. A lean condition at both banks can be caused by many things. A...

Hi there - smoke coming out of the EGR valve simply means the valve is either leaking, or stuck in the "open" position. The P0174 (https://www.yourmechanic.com/article/p0174-obd-ii-trouble-code-system-too-lean-bank-2-by-blake-griffin) code indicates a "lean" condition too much air/not enough fuel on the bank of...

Hi there. The codes are referring that that both banks on the engine are reading a lean condition. For a lean condition to occur, the fuel system is not functioning properly. Check the fuel pump, fuel pump relay, and the...

Hi there. What is happening is the codes are reading for a misfire on cylinder number 2 and the system is too lean on bank 2. Check the spark plugs and the fuel injector on cylinder 2 to see if...

Hi there. When the two codes P0171 (https://www.yourmechanic.com/article/p0171-obd-ii-trouble-code-system-too-lean-bank-1-by-andrew-quinn) and P0174 (https://www.yourmechanic.com/article/p0174-obd-ii-trouble-code-system-too-lean-bank-2-by-blake-griffin) come up for a lean system on both banks of your engine, then either all of the fuel injectors are not working properly or your fuel pressure has dropped....

Hello. Thank you for writing in. Due to the p0405 code (https://www.yourmechanic.com/article/p0405-obd-ii-trouble-code-exhaust-gas-recirculation-sensor-circuit-a-low-by-jay-safford), you will want to start by replacing the sensor. This is typically easier and cheaper than replacing the EGR unit all together. If the light continues to illuminate,...

The high positive long term fuel trim suggests a vacuum leak and/or inadequate fuel delivery. But there are other causes that have to be evaluated as well: bad oxygen sensor(s); dirty MAF sensor; stuck open EGR valve; weak fuel pump;...

Hi there. If the engine is running lean, then there could be a plugged fuel filter (https://www.yourmechanic.com/services/fuel-filter-replacement) or a faulty fuel pump (https://www.yourmechanic.com/services/fuel-pump-replacement) with loss of pressure. If the pressure is dropping after 20 to 25 minutes, then there could...

Hi and thanks for contacting YourMechanic. When the engine becomes too lean, then combustion chamber becomes very hot causing the head gasket to burn, valves begin to burn, and the rings being to seize up. Check the camshaft sensor (https://www.yourmechanic.com/services/camshaft-position-sensor-replacement)...

All the generated codes will need further inspection from a mechanic. The P0300, P0301, and P0305 are all misfires in the engine and could also cause some of the additional codes. You will need to have a diagnostics done and...

Hello. A flashing Check Engine Light is an indicator that the computer has detected an issue that may potentially cause harm to the vehicle's emission system components. The code P0174 (https://www.yourmechanic.com/article/p0174-obd-ii-trouble-code-system-too-lean-bank-2-by-blake-griffin) indicates a lean condition on bank 2 of the...