Engine-CodesBuick – P1237 Buick

P1237 Buick Code - Injector Circuit Cylinder 6 Intermittent

Quick Answer

The P1237 Buick code indicates an issue with the injector circuit in cylinder 6 of the vehicle's engine. Common causes include Faulty fuel injector, Wiring or connector issues, Malfunctioning engine control module (ECM). 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
P1237 Buick indicates Injector Circuit Cylinder 6 Intermittent.
Common causes
Common causes include Faulty fuel injector, Wiring or connector issues, Malfunctioning engine control module (ECM).
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.
Table of contents Created and updated by William Orellana on Sep 26, 2024
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Code P1237 Buick Description

The P1237 Buick code indicates an issue with the injector circuit in cylinder 6 of the vehicle's engine. This means that there is an intermittent problem with the fuel injector that is responsible for delivering fuel to cylinder 6. The fuel injector plays a crucial role in the combustion process by spraying fuel into the cylinder at the right time and in the right amount. When there is an issue with the injector circuit, it can lead to a variety of performance issues and potentially cause long-term damage if not addressed promptly.

OBDII Code P1237 Buick - Injector Circuit Cylinder 6 Intermittent
P1237 Buick Code - Injector Circuit Cylinder 6 Intermittent

Common Causes of P1237 Buick

  1. Faulty fuel injector
  2. Wiring or connector issues
  3. Malfunctioning engine control module (ECM)
  4. Fuel injector driver circuit problem
  5. Clogged fuel injector

Symptoms of P1237 Buick

  1. Engine misfires
  2. Rough idling
  3. Decreased fuel efficiency
  4. Poor acceleration
  5. Engine stalling

How to Fix P1237 Buick

  1. Diagnose the specific cause of the issue by performing a thorough inspection of the injector circuit in cylinder 6.
  2. Test the fuel injector in cylinder 6 to determine if it is functioning properly.
  3. Check the wiring and connectors associated with the injector circuit for any damage or corrosion.
  4. Inspect the engine control module (ECM) for any signs of malfunction and address any issues found.
  5. Clear the diagnostic trouble codes, make the necessary repairs, and test drive the vehicle to ensure the problem has been resolved.

Cost to Fix P1237 Buick

The typical repair costs for addressing an injector circuit cylinder 6 intermittent issue can vary depending on the specific cause of the problem. In general, the cost of replacing a fuel injector can range from $150 to $300 per injector, not including labor costs. Wiring or connector repairs may cost between $50 and $200, while diagnosing and repairing an ECM issue can range from $200 to $500. Labor costs at auto repair shops typically range from $80 to $150 per hour, but rates can vary based on location and the shop's expertise. It's recommended to obtain a detailed estimate from a trusted mechanic to determine the exact cost for resolving this issue.

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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.

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