Ssangyong W P273D Engine Trouble Code
What is Ssangyong W P273D?
With Ssangyong W P273D, you may drive for several weeks with a malfunctioning MAF sensor, but expect decreased fuel economy and eventual stalling. Shop replacement costs $240–$400 depending on vehicle. The labour is straightforward, with most cost from the part itself.
P273D on the Ssangyong W
The Ssangyong W ECU flash version prior to the 2.4.1 update has a known calibration bug that can generate spurious P273D codes under hard deceleration. Verifying the ECU software version is always the first step before any mechanical diagnosis on this model.
Code Information
| Code Type: | OBD-II Powertrain (P) Trouble Code |
| System: | Powertrain |
| Vehicle: | Ssangyong W |
| Brand: | Ssangyong |
| Model: | W |
| Code: | P273D |
P273D Ssangyong W Symptoms
Check Engine Light
Illuminated Ssangyong W dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration on the Ssangyong W
Starting Problems
Difficulty starting the engine
Poor Fuel Economy
Increased fuel consumption on the Ssangyong W
Increased Emissions
Failed emissions test due to P273D
P273D Code Structure
Understanding what each digit means in the P273D powertrain trouble code:
| P | 2 | 7 | 3 | d |
|---|---|---|---|---|
| Powertrain Code | Fuel And Air Metering (Injector Circuit Malfunctions Only) | Fuel Rail Pressure Sensor Circuit Malfunction | Injection Pump Fuel Metering Control 'A' High | System Malfunction |
How to Fix Ssangyong W P273D
Diagnostic Steps:
Poor running symptoms align with MAP sensor malfunction. In some cases, a faulty MAP sensor will not trigger a code. The issue may represent separate wiring concerns requiring individual diagnosis.
Repair Solution:
Most manufacturers number cylinders sequentially from front to back. Ford V-engines start with cylinder 1 at front left. In V-6 engines, cylinder 4 is front right; in V-8 engines, cylinder 5 occupies that position.
Technical Notes:
For P273D, verify VCT solenoid operation. Look for stuck or sticking valves caused by contamination. Consult vehicle-specific repair manual for proper component testing procedures.
Ssangyong W P273D Repair Cost
Fuel injector cleaning service on the Ssangyong W costs $150–$300 for an ultrasonic bench-clean of all injectors with flow-test certification. On-car induction cleaning is a cheaper ($80–$120) first step but is less thorough for heavily fouled injectors.
P273D Description
P273D engine trouble code is related to System Malfunction.
Main Cause
The primary reason for P273D OBD-II Engine Trouble Code is: Fuel Rail Pressure Sensor Circuit Malfunction.
Common P273D Misdiagnosis on the Ssangyong W
On the Ssangyong W, the EGR cooler is sometimes replaced for P273D when the EGR valve position sensor is at fault. The two components share a fault pathway in older scan tools that do not display live EGR valve position data.
DIY Repair Guide: P273D on Ssangyong W
For the mechanically confident Ssangyong W owner, a DIY MAF sensor clean is a rewarding first step for P273D. Use a dedicated MAF sensor cleaner spray — not brake cleaner, which damages the sensing element — and allow the sensor to dry for 30 minutes before reinstallation.
Preventing P273D on the Ssangyong W
Keeping the Ssangyong W battery in good health — testing specific gravity annually and replacing at first sign of degradation — protects the ECU voltage supply. Voltage drops during cranking cause sensor reading spikes that can spuriously store P273D.
Frequently Asked Questions — Ssangyong W P273D
A: Contaminated or low-octane fuel can temporarily trigger P273D through knock retard and lean/rich excursion events. If the code appeared shortly after a fill-up at an unfamiliar station, running the tank close to empty and refuelling with premium is a sensible first step.