Skip the auto shop - Our mechanics make house calls

Q: Mass air flow sensor

asked by on

I changed it because that was the problem with an old car, so I got a new one and it started doing the same thing again. I can't find anything wrong with wires. It won't even run. If you can help let me know thanks

My car has 550000 miles.
My car has an automatic transmission.

A: Hi, thanks for writing in. Replacing parts ...

Hi, thanks for writing in. Replacing parts is not a cheap way to try and find a problem. You should have the computer scanned to see what codes are stored. You may have to clear the codes and then see what codes return. Disconnecting the MAF causes the ECM to go into failure mode and can mask other problems. Once the codes are received and diagnosed then a pinpoint test can be done to isolate the failure. I recommend checking the intake and inlet tubing between the MAF and throttle body to see if it has cracks. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Motor ticking and stalling

Initially, check the engine oil for correct level and smell it for a gas smell. If the engine oil level is low, add oil until it is correct. If it smells like gas, then you likely have another issue. Regardless,...

Q: Turns over strong but won't start.

With my experience with 04 Corvettes, the issue is likely the battery. With the amount of electrical components, the issue is simply battery drain. There are so many settings that require memory that the battery will drain just enough to...

Q: Won't start after being read with a Genesis Touch reader

I know these two things happened simultaneously but they may not be connected. Check your fuses for your fuel pump. It's turning over which is good, it just sounds like you aren't getting fuel. You could have a bad...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.