AutoCodes – Infiniti – P1102 2003 Infiniti G35

P1102 2003 Infiniti G35 Code - Mass Air Flow Sensor Circuit Range/Performance

Quick Answer

The Mass Air Flow (MAF) sensor is placed in the stream of the intake air. Common causes include Faulty Mass Air Flow (MAF) Sensor, Dirty Mass Air Flow Sensor, Dirty Air Filter. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1102 2003 Infiniti G35 indicates Mass Air Flow Sensor Circuit Range/Performance.
Common causes: Common causes include Faulty Mass Air Flow (MAF) Sensor, Dirty Mass Air Flow Sensor, Dirty Air Filter.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 6,454

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 20, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1102 2003 Infiniti G35 Description

The Mass Air Flow (MAF) sensor is placed in the stream of the intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It consists of a hot film that is supplied with electric current from the Engine Control Module (ECM). The temperature of the hot film is controlled by the ECM by a certain amount. The heat generated by the hot film is reduced as the intake air flows around it. The more air, the greater the heat loss. Therefore, the ECM must supply more electric current to maintain the temperature of the hot film as air flow increases. The ECM detects the air flow by means of this current change. The Diagnostic Trouble Code (DTC) will be set when the ECM detects a lower than expected voltage from the MAF sensor.

OBDII Code P1102 2003 Infiniti G35 - Mass Air Flow Sensor Circuit Range/Performance - AutoCodes.com — P1102 2003 Infiniti G35 Code - Mass Air Flow Sensor Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P1102 2003 Infiniti G35?

Faulty Mass Air Flow (MAF) Sensor
Dirty Mass Air Flow Sensor
Dirty Air Filter
Mass Air Flow Sensor harness is open or shorted
Mass Air Flow Sensor circuit poor electrical connection
Intake air leaks

How to Fix the DTC P1102 2003 Infiniti G35?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

Before replacing the Mass Air Flow (MAF) Sensor, try replacing the air filter and cleaning the Mass Air Flow Sensor with low compress air or Mass Air Flow Sensor cleaner. Reset the code and drive the vehicle. If the code comes back, it may be necessary to replace the Mass Air Flow Sensor.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1102 2003 Infiniti G35 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1102 2003 Infiniti G35 code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1102 2003 Infiniti G35 Code

1. What are the common symptoms of OBDII code P1102 in a 2003 Infiniti G35 related to the Mass Air Flow Sensor Circuit Range/Performance issue?

The common symptoms include poor engine performance, rough idling, stalling, decreased fuel efficiency, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P1102 in a 2003 Infiniti G35 related to the Mass Air Flow Sensor Circuit Range/Performance issue?

Possible causes include a faulty mass air flow sensor, dirty air filter, vacuum leaks, wiring issues, or a problem with the sensor circuit.

3. How can I diagnose the OBDII code P1102 in a 2003 Infiniti G35 related to the Mass Air Flow Sensor Circuit Range/Performance issue?

Diagnosis involves inspecting the mass air flow sensor, checking the air filter, inspecting for vacuum leaks, testing the sensor circuit, and using a scan tool to monitor sensor readings.

4. Can I drive my 2003 Infiniti G35 with OBDII code P1102 related to the Mass Air Flow Sensor Circuit Range/Performance issue?

It is not recommended to drive the vehicle with this code as it can lead to poor engine performance and potential damage. It's best to address the issue promptly.

5. How can I repair OBDII code P1102 in a 2003 Infiniti G35 related to the Mass Air Flow Sensor Circuit Range/Performance issue?

Repair options include cleaning or replacing the mass air flow sensor, replacing the air filter, fixing vacuum leaks, repairing wiring issues, or resetting the code after addressing the problem.

6. Will resetting the OBDII code P1102 in a 2003 Infiniti G35 related to the Mass Air Flow Sensor Circuit Range/Performance issue solve the problem?

Resetting the code may temporarily turn off the check engine light, but if the underlying issue is not addressed, the code is likely to reappear. It's important to diagnose and fix the root cause.

7. How much does it typically cost to repair OBDII code P1102 in a 2003 Infiniti G35 related to the Mass Air Flow Sensor Circuit Range/Performance issue?

The cost of repair can vary depending on the specific cause of the issue. It may range from a simple air filter replacement to a more complex sensor replacement or wiring repair, costing anywhere from $50 to $500 or more.

8. Can a DIY enthusiast repair OBDII code P1102 in a 2003 Infiniti G35 related to the Mass Air Flow Sensor Circuit Range/Performance issue?

Some repairs, such as replacing the air filter or cleaning the sensor, can be done by DIY enthusiasts with the necessary tools and knowledge. However, more complex repairs may require professional assistance.

9. Are there any preventive measures to avoid OBDII code P1102 in a 2003 Infiniti G35 related to the Mass Air Flow Sensor Circuit Range/Performance issue?

Regular maintenance, such as changing the air filter on schedule, ensuring the sensor is clean, and addressing any engine performance issues promptly, can help prevent this code from appearing.

10. How long does it take to repair OBDII code P1102 in a 2003 Infiniti G35 related to the Mass Air Flow Sensor Circuit Range/Performance issue?

The repair time can vary depending on the specific cause of the issue and the complexity of the repair. It may take anywhere from 30 minutes for simple fixes to a few hours for more involved repairs.