I have a 2006 Toyota Corolla and the check engine light has come on. It comes back at P2769, otherwise Failed Solenoid Valve. Is this hard and/or expensive to fix?

The symptoms of a bad EGR Valve Control Solenoid in a 1996 Toyota Corolla 1.6L include rough idling or stalling, a smell of fuel, increased fuel consumption, pinging, tapping, or knocking sounds, failed smog test, and check engine light on . If you are experiencing any of these symptoms, it is recommended to get your vehicle checked by a professional mechanic.

In terms of DIY, you can try cleaning the solenoid valve with throttle body cleaner and then test the solenoid electronically with a 12-volt supply. If that doesn't work, you can replace the EGR valve, vacuum modulator, and VSV (if equipped) and clean out the carbon buildup to the intake from the EGR valve.

Please note that if you decide to drive the car without the EGR valve and the EGR Valve Solenoid working, you can keep cancelling the code. The ECM will try and work things out and compensate. However, it is not recommended to bypass the EGR valve .

Automatic idle control module and the valve it controls on the engine need attention. Sometimes a simple cleaning of the valve is all that's needed.

P0440 EVAP mulfunction , EVAP valve or hoses leak

DTC P2716 - Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)

If you need to test this electrical components and wiring. Tell me if you need the TSB about this DTC.

this solenoid is part of the solenoid pack that is located on the valve body inside the transmission.

This is a torque converter clutch solenoid code internal to the transmission. the computer has detected a fault in the operation of the solenoid. It will need to be diagnosed by a trained technician and may very likely require internal trans repairs.

Are you sure you dont have an 05 corolla if so you need to replace the Engine ECU

There is a technical service bulletin to correct this condition. Replacement of the car's Electronic Control Unit (the computer) will cure this. Take it to a Toyota dealer and have them replace it for free.

p0440 code means that the evap system has a leak. This could be caused by a bad or improperly installed gas cap. Either that or the purge solenoid has failed or the canister is plugged and not working properly.