code p1406 ford expedtion
A P1406 error code on a 1996 Pontiac Sunfire indicates a faulty EGR valve. This can result in poor engine performance and should be replaced immediately.
EGR Valve
Trouble code P1406 means:EGR pintle position error
The P1406 code on a 1996 Oldsmobile Cutlass Ciera 3.1 is the code for the EGR pintle position circuit. I know this because it was my question initially and we bought a code reader to check the problem. It is a factory specific code, so the answer is quite specific. Good luck !
Trouble code P0700 means: Transmission Control System (MIL Request)
Trouble code P1627 means: PCM A/D Conversion Malfunction
Trouble code P0351 means: Ignition Coil A Primary/Secondary Circuit
Trouble code P1326 means: ION Sensing Module Combustion Quality
You have a bad o2 sensor (low voltage)
Trouble code P0171 means: System Too Lean (Bank 1)
Trouble code P0420 means:Catalyst system efficiency below threshold