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

Quick Answer

The P1102 code for a 2003 Infiniti G35 indicates a problem with the Mass Air Flow (MAF) sensor circuit's range or performance. Common causes include Dirty or contaminated MAF sensor, Faulty MAF sensor, Vacuum leak in the intake system. 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 Dirty or contaminated MAF sensor, Faulty MAF sensor, Vacuum leak in the intake system.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P1102 2003 Infiniti G35 Description

The P1102 code for a 2003 Infiniti G35 indicates a problem with the Mass Air Flow (MAF) sensor circuit's range or performance. The MAF sensor is a crucial component of the vehicle's engine management system, responsible for measuring the amount of air entering the engine to determine the correct air-fuel mixture for combustion. When this sensor malfunctions or operates outside the expected range, it can lead to a variety of performance issues.

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

Common Causes of P1102 2003 Infiniti G35

  1. Dirty or contaminated MAF sensor.
  2. Faulty MAF sensor.
  3. Vacuum leak in the intake system.
  4. Wiring issue in the MAF sensor circuit.
  5. ECM malfunction affecting MAF sensor operation.

Symptoms of P1102 2003 Infiniti G35

  1. Engine hesitation or stumbling during acceleration.
  2. Rough idling or stalling at idle.
  3. Decreased fuel efficiency.
  4. Check Engine Light illuminated on the dashboard.
  5. Engine misfires.

How to Fix P1102 2003 Infiniti G35

  1. Start by inspecting the MAF sensor for any visible signs of contamination or damage. Clean the sensor with MAF sensor cleaner if necessary.
  2. Check for any vacuum leaks in the intake system and repair or replace any damaged hoses.
  3. Inspect the wiring and connectors in the MAF sensor circuit for any loose connections or damage. Repair or replace as needed.
  4. If the issue persists, replace the MAF sensor with a new, high-quality unit to ensure accurate readings and proper engine operation.
  5. Clear the diagnostic trouble codes and reset the ECM to ensure the issue has been resolved.

Cost to Fix P1102 2003 Infiniti G35

The cost estimate for repairing a P1102 code on a 2003 Infiniti G35 can vary depending on the specific cause of the issue. Typically, the cost of a new MAF sensor ranges from $100 to $300, depending on the brand and quality. Labor costs at a repair shop can range from $80 to $150 per hour, with the total repair time likely to be around 1-2 hours. Therefore, the total estimated cost for this repair could range from $180 to $450, including parts and labor. It's important to note that prices may vary based on location, vehicle make and model, and the specific diagnosis required. It's recommended to consult with a trusted mechanic or repair shop for an accurate cost estimate.

What does this mean?

Tech Notes for P1102 2003 Infiniti G35

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.

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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.

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