U266A Pontiac Grande Parisienne DTC Code

Pontiac Grande Parisienne Engine Specifications:

Engine Type :	Single Cylinder Engine
Cylinder Type :	Opposite Piston Engine
Engine Air Intake Process :	Supercharged Engine

Your Pontiac Grande Parisienne engine control system detects a problem, the computer stores the diagnostic trouble code U266A in its memory. To figure out what is wrong with your vehicle you must first extract the U266A DTC For Pontiac Grande Parisienne.

To solve U266A Pontiac Grande Parisienne problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs

U266A Pontiac Grande Parisienne DTC Meaning

U	Network Code - Problem is climate control system, lighting, airbags, etc.
2	MFG - Manufacturer Specific
6	Vehicle Speed Control And Idle Control System
6	Vehicle Speed Output Circuit
A	TFP Valve Position Switch-Drive Without Drive Ratio

If your vehicle failed a U266A Pontiac Grande Parisienne test and the U266A Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses U266A a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look U266A DTC For Pontiac Grande Parisienne: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.