Failed emissions test due to 2 check engine codes P0174 a...
Responses
Mike V.
226 days ago
Hi, my name is\*\*\*\*\*’ve been a technician on Just Answer since 2007 and I'll be helping you today. I'm sorry to hear you are having difficulties with your vehicle. I know how inconvenient car trouble is, but together, we will get your vehicle back up and running quickly.
May I ask whom I am chatting with today?
Customer
226 days ago
My name is \*\*\*\*\* \*\*\*\*\* I am actually researching for my son Mike
Mike V.
226 days ago
Hi Karen, it's nice to meet you.
Can you tell me the year, make mode and engine size of the car?
Customer
226 days ago
2007 Nissan Maxima. I think v8
Mike V.
226 days ago
Ok, that's good enough.
Is the engine running rough or the idle speed fast that you know of?
Customer
226 days ago
idle is running fast.Engine seem fine otherwise
Mike V.
226 days ago
Ok
This P0174 code is for what we call a lean fuel mixture. The computer is adding fuel to try and make it correct which s why the engine is running fast.
The first thing to check is for any vacuum leaks, possibly a split hose or line that has come off, also have him check the large hose to the throttle body. If it's a hose it might be a fast and inexpensive repair.
Have him check these and let me know.
Thanks
Customer
226 days ago
we are to see if any of the hoses are loose, cracked or off? He just had an oil change, would of they said something if there was?
Mike V.
226 days ago
Not if they didn't notice, but also, if the fast idle wasn't an issue before the oil change, take a very close look at the air filter box and the tube to the throttle body.
Still not sure what you need?
Have a certified mobile mechanic diagnose what's wrong with your car, at your home or office.
Top Questions
Trending Topics
What others are asking
Engine turns over but won't start
An engine needs three things to run: compression, fuel and ignition. If one of these are missing, your engine will not start. A test for spark and fuel should reveal the most likely culprit (e.g., fuel pump, crankshaft/camshaft sensors or...
my question is can a rear main seal leak spray oil up into the engine compartment on top of the valve cover area on passenger sid?
It may be possible since the oil can run down the oil pan and then get into the belts and slug up the passenger side of the motor. This is not as likely as the front of the engine crankshaft...
It won't start. It goes click, click, click rapidly. Is it the battery or the starter?
Hello there. A crank but no start is a very common problem on your 2003 Honda Accord. Many faults can cause this but the first one to rule out would be the battery (https://www.yourmechanic.com/article/how-to-check-a-car-battery), a load test must be performed...
How fast and how long can I drive with a broken CV shaft?
Once the boot of the CV joint has broke open then over a short time the grease will be washed and slung out of the joint. At the same time you are losing the lube you are getting dirt, dust,...
Car will not move in gear after we bleed the clutch slave cylinder 2011 Dodge Caliber
Hello - if releasing the clutch (https://www.yourmechanic.com/question/how-does-a-clutch-work-by-richard-manning) pedal with the car in gear does not produce forward motion with the transmission in a forward gear, then yes, the clutch has likely failed. This would be a failure of the clutch...
AC Condenser
Hi There, Based on what you are describing, it sounds like your AC condenser cooling fan (https://www.yourmechanic.com/services/ac-condenser-fan-replacement) is not coming on as it should. As you drive down the road, there is typically enough air blowing through the AC condenser...
2004 Chevy impala ss sunroof will not close, make clicking noise and motor sounds like it is laboring
Hi There, It sounds like the sunroof is binding up inside the track causing it to get stuck and ultimately overpower the motor. This will likely require the sunroof panels to come apart to determine what may be causing it...
Location of bank 2 sensor 1 on a 2014 Ford Mustang 3.7L V6
Hi There, This oxygen sensor (https://www.yourmechanic.com/services/oxygen-sensor-replacement) is located on the passenger side of the vehicle in front of the catalytic converter (https://www.yourmechanic.com/services/catalytic-converter-replacement). If you need additional help replacing this, please reach out to us here at YourMechanic as we are...
I accidentally tapped the battery with a wrench and it sparked. now car won’t start, it doesn’t click, and radio won’t start.
Fuses and fusible links may have opened due to the short circuit. Inasmuch as the vehicle does not start, the simplest thing to do is diagnose the starting circuit first as, in the course of that, other fundamental failures (for...
Browse other content
Cities
Maintenance
Failed emissions test due to 2 check engine codes P0174 and P0507. I know the codes, I just need to know the cheapest way to get them fixed Mechanic's Assistant: Okay, I'll connect you to the Mechanic to go over that infor...
Failed emissions test due to 2 check engine codes P0174 and P0507. I know the codes, I just need to know the cheapest way to get them fixed Mechanic's Assistant: Okay, I'll connect you to the Mechanic to go over that information regarding your car. Before I do, is there anything else you want him to know? On a very tight budget due to Covid, so just need t pass the test