Q: CEL code P1101, Air intake system

asked by on November 18, 2016

Okay so I've been to the shop a couple times for this code, had my Air intake manifold replaced, hoses are good no leaks at all, the mechanic even cleaned my MAF for free. Car is running great, no poor fuel economy, no surging, it idles quite well. Could it be a fluke in the system with just a CEL on for no reason? I have spent nearly $7,000 in repairs on this car. So hopefully I'm done! Could the wire for the CEL have a short? The mechanic said it is running great and are amazed at this bizarre event. They did offer to bring it back to check on the parts all ready replaced under warranty which is the valve cover gasket and Air intake manifold. What are your thoughts?

My car has 136000 miles.
My car has an automatic transmission.

Hi there. It may be time to find another repair facility. The P1101 code is the MAF (mass airflow) sensor is out of self-test range. This means the voltage parameters the PCM (powertrain control module)/computer expects to see for the MAF, is not within specification. The PCM recognizes the fault and turns on the check engine light. There are test procedures to confirm the diagnoses. It may be, a poor electrical connection between the MAF and PCM. I recommend having your vehicle’s check engine light on be diagnosed and repaired by a certified technician, such as one from YourMechanic.

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

What others are asking

2011 kia sorento "jerking" between 60-80mph on freeway. Mileage is 64000

An issue like this is not unusual and can be resolved if you request an engine diagnostic. During such a diagnostic, the certified mechanic would come to your location and run through all the possible causes of engine misoperation at...

Transmission

The electronic controls in modern cars have a "warm up program" for emissions purposes. By holding the engine revs a bit higher and longer when the engine is cold, it will warm up faster, therefore pollute less. If you are...

How do I return all vehicle personalization to factory settings?

You can customize many of your vehicle’s settings using the vehicle personalization setting. You can also use the vehicle personalization to return all of the customizable features to their factory settings. To return to the factory settings, use the audio...

Something draining the battery

If it ran for 30 minutes after a jump, the alternator is probably ok. I would start by checking the battery first. Alternators are not designed to charge a dead battery. A good battery, that is completely dead, takes more...

would fuel system cleaning gas fuel injection cause service engine soon light to come on?

Hi there. Sometimes certain fuel injector cleaners can aggressively remove carbon deposits from sensors and cause a service light to illuminate but it is very rare. What is more likely is that the service light came on due to the...

I live in Florida and last week it was forecast to have freezing temps for a week or so...Anyways,I could not afford the antifr

If you are running straight water in your cooling system then you are taking the chance the water will freeze in the motor and cause damage to the engine and cooling system.

My car shakes when I drive it and it shut off when it was idle idk what's going on

I would recommend taking your vehicle back to the dealership that installed the alternator and asking them to inspect your vehicle for potential damages. It is very possible that something was removed disconnected or unplugged during the process of the...

put key to start car goes dead leave in run position 2 min then car starts

Your vehicle may have an ignition switch that is not making a good internal contact. GM has had multiple major recalls pertaining to problems with the ignition switch. These recalls may relate to your problem. The only way to see...

Car jerks when taking off then it drives fine after that, when making a turn it feels like I lose power then it's ok again

You should check to make sure the transmission is full and if it is low then top it off and retest. If it is full then take it to the rebuilder to have it checked since it sounds like the...

Related articles

A Buyer’s Guide to the 2012 Chevrolet Silverado Hybrid
If If you’re looking for a half-ton pickup truck that also gets great gas mileage, look no further than the 2012 Chevrolet Silverado Hybrid. While it has the towing and carrying capacity you’d look for in any regular truck, it...
A Buyer’s Guide to the 2012 Chevrolet Avalanche
Few Few vehicles are as distinctive as the Chevrolet Avalanche. Part SUV, part truck, the Avalanche is actually surprisingly practical. On the inside, it feels more like a Chevy Tahoe, except when you look out your rearview mirror, you’ll notice...
P1101 OBD-II Trouble Code: Mass Airflow Sensor Out of Self Test Range
P1101 means there is an issue with the mass airflow sensor system. It is likely due to a faulty sensor, bad connectors, or an air leak.