Q: The engine light is on and displaying a P1101 code on my code reader.

asked by on November 22, 2016

Keep getting a P1101 code. I have done the factory fix of replacing valve cover thought it was the pcv valve but the CEL is still on have 20 lbs of vacuum in the crankcase could it be MAF

My car has 125000 miles.
My car has an automatic transmission.

Mass Airflow Sensor Replacement $188.36 - $786.53 Get a Quote

Hi and thanks for contacting Your Mechanic. The code P1101 means that the mass airflow sensor (MAF) is out of self-test range. Check to see if the clamps to the sensor are tight. A slight leak of air around the sensor will make this code come up. Check the harness and see if the contacts are corrosion free. If everything looks good, then the MAF needs replaced. If you need further assistance with the mass airflow sensor replacement, then seek out a professional, such as one from Your Mechanic, to help you.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Brake pedal not working properly.
The brake master cylinder on your car has two internal chambers and it sounds like you have one of them failing or you have a major fluid leak. The first thing to look at is if the fluid is low...
Trouble with transmission hesitating.
Salvage cars are a gamble because you usually don't know what happened, that being said I would be willing to bet its only a misfire, is the check engine light on? These codes could be helpful, the fact that the...
Car has oil leak
It needs to be determined where the leak is coming from. Is it engine oil? Power steering fluid? Transmission fluid? Some leaks are easy fixes, some can be quite expensive. A qualified mechanic from YourMechanic can come out and diagnose...
Car won't start even though starter and battery tested good
Hi there. This sounds like an electrical issue your truck is experiencing. A bad connection will cause a surge of power just like the one you have. If your electrical system has a bad ground it will cause this sudden...
Key won't turn after inserting into ignition
Hello. It sounds like the ignition has locked up and this is preventing your key from working properly. This sometimes happens if the components inside the ignition gets worn out and gets stuck, preventing the key from turning the ignition....
Car won't start or crank after rebuild and battery replacement.
Hi there: Due to the fact that there are multiple variables that we don't know about what was possibly removed, replaced or loosened up during your major repairs, it's very difficult to give you some ideas of what to inspect....
How much does it cost to replace a CV Shaft on 2007 Dodge Grand Caravan.
Hi there. The shaking could be the CV Shaft joints seized up or the suspension on your vehicle is loose causing the vehicle to shake in both forward and reverse directions. Tires with a bubble or out of alignment tread...
Car is jerking and then correcting itself while driving. Especially when getting off gas pedal and then when pressing again. Not
Hi there. In general, when this situation occurs, it's due to loose or damaged suspension components as you've described above and indicated were recently replaced. It's quite possible that one of the components has come loose and is the source...

Related articles

A Buyer’s Guide to the 2011 Mazda RX-8
The The 2011 Mazda RX-8 is a sporty, two-door coupe that is able to seat four people (two in the front and two in the rear). While this was the final year of production for the RX-8, it definitely made...
How to Buy a Good Quality Camshaft Position Sensor
The The camshaft position sensor is a vital part of your engine’s ability to function properly. It detects the position, speed, acceleration and deceleration of the camshaft, which regulates the injection of fuel into the engine. In order to make...
How Long Does an EGR Pressure Feedback Sensor Last?
In In today's world people are more aware of exhaust gases than ever before. With that said measures have been built into modern vehicles that are meant to cut down on the emissions released into the air. Built into your...