AutoCodes – Lexus – P0202 Lexus

P0202 Lexus Code - Injector Circuit Open Cylinder 2

Quick Answer

Engine Control Module (ECM) checks the injectors circuit resistance and monitors the voltage drop during normal operation. Common causes include Faulty fuel injector 2, Fuel Injector 2 harness is open or shorted, Fuel Injector #2 circuit poor electrical connection. 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: P0202 Lexus indicates Injector Circuit Open Cylinder 2.
Common causes: Common causes include Faulty fuel injector 2, Fuel Injector 2 harness is open or shorted, Fuel Injector #2 circuit poor electrical connection.
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 7,653

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0202 Lexus Description

Engine Control Module (ECM) checks the injectors circuit resistance and monitors the voltage drop during normal operation. The ECM will trigger the P0202 code when the resistance or voltage drop at the injector 2 is out of specifications.

OBDII Code P0202 Lexus - Injector Circuit Open Cylinder 2 - AutoCodes.com — P0202 Lexus Code - Injector Circuit Open Cylinder 2

What does this mean?

What are the Possible Causes of the DTC P0202 Lexus?

Faulty fuel injector 2
Fuel Injector 2 harness is open or shorted
Fuel Injector #2 circuit poor electrical connection

How to Fix the DTC P0202 Lexus?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0202 Lexus 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 P0202 Lexus code?

Need more information on how to fix the P0202 Lexus code? Get Access to Factory Service Manuals

Need Help with the 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 P0202 Lexus Code

1. What does the OBDII code P0202 mean on a Lexus?

P0202 indicates an injector circuit open in cylinder 2, meaning thereâ€™s a problem with the electrical signal or operation of the fuel injector in cylinder 2.

2. What are the common symptoms of P0202 in a Lexus?

Symptoms may include rough idling, engine misfires, reduced fuel efficiency, loss of power, or the Check Engine Light turning on.

3. What causes code P0202 in a Lexus?

Common causes include a faulty fuel injector, damaged wiring or connectors, a bad injector driver in the PCM, or issues with the cylinder 2 injector circuit.

4. Can I still drive my Lexus with a P0202 code?

Driving with P0202 is possible but not recommended, as the misfires and poor fuel injection can lead to engine damage and reduced performance over time.

5. How do I diagnose P0202 on a Lexus?

Diagnosis involves inspecting the injector wiring and connectors for damage, testing the fuel injector for proper operation, and checking the PCM for faults.

6. How can I fix code P0202 in a Lexus?

Repairs may include replacing the fuel injector in cylinder 2, repairing or replacing damaged wiring or connectors, or addressing PCM-related issues.

7. How much does it cost to repair P0202 on a Lexus?

Repair costs vary but typically range from $150 to $400 depending on whether the issue is the injector, wiring, or PCM.

8. Can a dirty fuel injector cause P0202?

Yes, a clogged or dirty fuel injector can restrict fuel delivery and trigger this code, although electrical issues are more common.

9. Does P0202 always mean the injector is bad?

No, it could also be caused by wiring issues, connector problems, or faults in the PCM rather than the injector itself.

10. Can I clear the P0202 code without fixing the issue?

Clearing the code without addressing the underlying problem may temporarily turn off the Check Engine Light, but the code will likely return as the issue persists.