Cel With Numerous Codes - Help...?

Discussion in 'SN95 V6 Mustang Tech' started by moonrises2, Jul 3, 2014.

  1. moonrises2

    moonrises2 New Member

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    Hi, I have a 1999 Mustang coupe with the 3.8 v6 and 5 speed. A Craiglist special.

    Yeah, it's not some showroom classic, it's just a fun little cruiser - I hope.

    The car runs poorly - it runs at 2000 rpm always - and when I attached a scan tool to the car, it shows these codes:

    P0443 - Evaporative Emission Control System Purge Control Valve Circuit
    P1451 - EVAP Control System Canister Vent Solenoid Circuit Malfunction
    P0412 - Secondary Air Injection System Switching Valve A Circuit Malfunction
    P0135 - Oxygen O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
    P0141 - Oxygen O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
    P0155 - Oxygen O2 Sensor Heater Circuit Malfunction (Bank 2, Sensor 1)
    P0161 - Oxygen O2 Sensor Heater Circuit Malfunction (Bank 2, Sensor 2)
    P1409 - EVR Control Circuit Malfunction

    From reading other posts on these forums, it appears that these codes may be masking the actual problem, but I am not sure where to start.

    I'm sure it's possible that all four O2 sensors failed, but is there a way to test before I start spending all kinds of money on sensors and other stuff?

    Thanks in advance.
     
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