Question about Pontiac Sunfire

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I have 4 codes- po440 evap sys, c1224, c1235, c1228 (wheel speed sensor) thanks

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  • dwironmaiden Aug 26, 2010

    it's the right rear wheel sensor? and p0440- it's not an emissions code?

  • dwironmaiden Aug 26, 2010

    bad fuel sending unit- like a fuel pump? and those wheel sensor codes- it's a right rear one?



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The evap sys code has to do with the handling of gas vapors in the evap canister.

The wheel speed sensor error will affect the abs brakes and traction control if so equipped.

Posted on Aug 26, 2010


P0440 is a bad fuel sending unit
C1224, C1235, and C1228 are ABS wheel sensor codes

You need a new hub assembly/bearing (the hub assembly holding the bearing and the WSS, you can’t just change the WSS or just the bearing)

Posted on Aug 26, 2010


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