Skip the auto shop - Our mechanics make house calls

Q: Reduced engine check engine

asked by on

I own a Honda Passport. The “Reduced Power” light and the “Check Engine” light came on. The car won’t go over 30 mph. It gave me 2 codes for the Throttle Position Sensor and Accelerator Sensor, and I have changed both of those parts. It worked fine for about 40 miles, and then the lights came back on. The car lost power again. Does anyone have any ideas about what the problem could be?

A: It is possible that this could be related t...

It is possible that this could be related to your mass air flow sensor on your 2001 Honda Passport. The mass air flow sensor and the throttle position sensor work in conjunction with each other to send signals to the powertrain control module.

From there, the powertrain control module will decide how much or how little fuel to add to each cylinder depending on the amount of air coming through the intake. If the throttle position sensor is known to be a good part, I would recommend having a certified mechanic run a test on the mass air flow sensor to determine if it is working properly. If the sensor is not working properly, I would recommend having it replaced as this will likely resolve the issues you are having with your vehicle. If you would like to have this checked first, a certified technician from YourMechanic can diagnose your vehicle’s loss of power and let you know what needs to be done.

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: How does the security system work in a 2012 Honda Accord?

If your Accord has a security system as a standard feature (all but LX models), you have built in anti-theft protection. The system is designed to flash the lights and honk the horn if someone tries to enter the vehicle...

Q: 1999 Jeep Grand Cherokee dies while driving

A faulty idle air control valve would cause the exact issues you describe. The idle air control valve will be located right next to the throttle body inlet. The idle air control valve controls the idle speed of the engine....

Q: What does the parking brake warning mean?

If your parking brake is on, you’ll see the Parking Brake light on the dash. However, you will also see a warning shown in the vehicle information display that tells you the parking brake is set. This warning is meant...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...