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Engine-Codes – Generic – P1627

P1627 Code - Engine Control Module Analogue / Digital Converter

Quick Answer

The P1627 code indicates an issue with the Engine Control Module's (ECM) analogue to digital converter. Common causes include Wiring issues, Faulty analogue to digital converter within the ECM, Malfunctioning sensor sending incorrect signals to the 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
P1627 indicates Engine Control Module Analogue / Digital Converter.
Common causes
Common causes include Wiring issues, Faulty analogue to digital converter within the ECM, Malfunctioning sensor sending incorrect signals to the 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P1627 Description

The P1627 code indicates an issue with the Engine Control Module's (ECM) analogue to digital converter. The ECM is a crucial component of the vehicle's onboard computer system that controls various functions, such as fuel injection, ignition timing, and emissions control. The analogue to digital converter within the ECM is responsible for converting analog signals from sensors into digital signals that the ECM can interpret and act upon.

OBDII Code P1627 - Engine Control Module Analogue / Digital Converter
P1627 Code - Engine Control Module Analogue / Digital Converter

Common Causes of P1627

  1. Wiring issues
  2. Faulty analogue to digital converter within the ECM
  3. Malfunctioning sensor sending incorrect signals to the ECM
  4. Software glitch in the ECM

Symptoms of P1627

  1. Decreased fuel economy
  2. Rough idling
  3. Stalling
  4. Hesitation during acceleration
  5. Engine misfires

How to Fix P1627

  1. Begin by inspecting the wiring harness connected to the ECM for any visible damage or loose connections. Repair or replace any damaged wires as needed.
  2. Test the analogue to digital converter within the ECM using a multimeter to check for proper functionality. Replace the converter if it is found to be faulty.
  3. Check all sensors connected to the ECM for any issues and replace any malfunctioning sensors that may be sending incorrect signals.
  4. Perform an ECM software update or reflash to address any potential software glitches that may be causing the issue.
  5. Clear the diagnostic trouble codes from the ECM and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1627

The typical repair costs for addressing a P1627 code can range from $200 to $500, depending on the specific cause of the issue and the extent of the repairs needed. This estimate includes the cost of parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check local rates for a more precise estimate.

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Code P1627 Information for Specific Makes

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 P1627 Code

No Frequently Asked Questions about P1627 Code found.

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  • Hi I have a Honda Accord 1998 vtec my battery died and I got a jump as soon as it turned on I got a check engine light on I went to auto zone to get it check out and they found a code saying p1627 but they couldn't find what it meant any help

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  • Please double check the code, there is no information about the P1627 code in the Honda factory service manual.

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