B1773 Engine Trouble Code
What is B1773?
With B1773, 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.
Code Information
| Code Type: | OBD-II Body (B) Trouble Code |
| System: | Body |
| Code: | B1773 |
B1773 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
B1773 Code Structure
Understanding what each digit means in the B1773 body trouble code:
| B | 1 | 7 | 7 | 3 |
|---|---|---|---|---|
| Body Code | Fuel And Air Metering | Fuel Rail Pressure Sensor Circuit Malfunction | Cylinder 10 Contribution/Balance Fault | Exhaust Gas Recirculation Sensor B Circuit High |
How to Fix B1773
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:
VSS concerns may stem from noisy input signals caused by RFI/EMI from ignition wires, charging circuits, or aftermarket equipment. Verify VSS reads 0 mph when transmission is in Park.
Technical Notes:
B1773 DTC specifically relates to camshaft timing. When cam timing is over-retarded, the check-engine light illuminates and this code sets. Verify VCT solenoid operation and check for contamination.
B1773 Description
B1773 engine trouble code is related to Exhaust Gas Recirculation Sensor B Circuit High.
Main Cause
The primary reason for B1773 OBD-II Engine Trouble Code is: Fuel Rail Pressure Sensor Circuit Malfunction.