C1627 Engine Trouble Code
What is C1627?
C1627 indicates potential catalytic converter failure. If completely failed, your vehicle may not run properly and fuel economy will suffer significantly. Average replacement cost is $2,000–$2,140. This repair requires professional service and should not be delayed.
Code Information
| Code Type: | OBD-II Chassis (C) Trouble Code |
| System: | Chassis |
| Code: | C1627 |
C1627 Symptoms
Check Engine Light
Illuminated dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration
Starting Problems
Difficulty starting the engine
C1627 Code Structure
Understanding what each digit means in the C1627 chassis trouble code:
| C | 1 | 6 | 2 | 7 |
|---|---|---|---|---|
| Chassis Code | Fuel And Air Metering | Fuel Temperature Sensor B Circuit Range/Performance | Turbocharger Boost Sensor A Circuit Low | Shift/Timing Solenoid Malfunction |
How to Fix C1627
Diagnostic Steps:
The catalytic converter has oxygen sensors before and after it. When warm and in closed-loop mode, the upstream O2 sensor reading should fluctuate, while downstream should remain steady.
Repair Solution:
A/C pressure sensor monitors refrigerant pressure changes. DTC sets when pressure change falls outside calibration. Verify A/C system function, refrigerant charge, and electrical connections.
Technical Notes:
For C1627, verify VCT solenoid operation. Look for stuck or sticking valves caused by contamination. Consult vehicle-specific repair manual for proper component testing procedures.
C1627 Description
C1627 engine trouble code is related to Shift/Timing Solenoid Malfunction.
Main Cause
The primary reason for C1627 OBD-II Engine Trouble Code is: Fuel Temperature Sensor B Circuit Range/Performance.