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2017 GT350 4 Emissions Sensors not ready

4356 Views 7 Replies 4 Participants Last post by  hetzerrr
Greetings ALL

I own a 2017 GT350 with just over 2,000 miles. As I purchased it out of state and shipped into CA, the CA DMV wants a smog certificate prior to releasing plates. The car failed smog with about 400 miles on it with 4 readiness monitors reporting not ready (Oxygen, Fuel, Evap). There are no error codes. The vehicle is 100% stock from a Ford dealer and was delivered with 17 miles.

I have an OBDII reader, and, after another 1,600 miles, the sensor states remains unchanged.

A local Ford dealer and ford.com state there is nothing wrong with the car and they will do nothing to it. Other than I cannot get a license plate in CA....

It would be helpful if those of you with OBD readers could check the status of your readiness monitors on your vehicles and reply with their status and the mileage on your vehicle. I can use this information in what appears to be a battle brewing with Ford about the worthiness of this vehicle.

Thanks in advance for any help.
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You will need to complete an OBDII drive cycle to complete monitors. The information to complete it can be found on line, there are out side temperatures that need to be present to perform the monitors. These monitors are normal cleared during normal driving. I have had to drive my 03 Mach I over a month to clear all the monitors. With my GT350 have over 2 years before a test is needed. Good luck it can be a pain to clear then all
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You will need to complete an OBDII drive cycle to complete monitors. The information to complete it can be found on line, there are out side temperatures that need to be present to perform the monitors. These monitors are normal cleared during normal driving. I have had to drive my 03 Mach I over a month to clear all the monitors. With my GT350 have over 2 years before a test is needed. Good luck it can be a pain to clear then all
I have to agree with Snowman, monitors are a pain. Sorta like tying your shoes while standing on your hands. It will help knowing the proper drive cycles, many times they require a driving pattern which seems odd to a normal driver. All cars are like this, just some harder than others to clear the monitors. Good luck, smog techs here in CA have been fighting this for years.
When I received my early 2017 vehicle it wasn't running well. I took it to the dealership and they said the timing and emissions sensor data had never been properly calibrated/reset at the factory. They reset everything and said I had to drive it a hundred miles before all monitors would report back OK so that it would pass an emissions test. What they did immediately made it run smoothly, and it was fine when I got the emissions test done 100 miles after that.
I am seeing random cylinder misfires and failures on code $84 (Inferred catalyst mid-bed temperature) and expect a P0300 at some point

The car is going to Ford service next week even though it still has not stored a code as reading indicates misfire rates low enough will not set a code.

It is over 2,500 miles with no progress on the readiness monitors and I suspect the above are blocking the monitors running.
Hi All

Have about 150 miles since reset of PCM and the pending P0300 is back with a error on $84 as well. This should give the Ford service folks enough to begin trying fixes. At least they can no longer claim the car has no issues.
Had car at Ford dealer last week. They reflashed on of the ECUs which changed the status of some of the emissions monitors.

Yesterday, the vehicle registered a permanent P0025 - B Camshaft Position Timer Over retarded Bank 2.

Hopefully this will lead to a final fix.
The Saga Continues

The random cylinder misfires finally became permanent P0300, P0302. The Fuel System monitor had not yet passed.

Ford has replaced the intake manifold. All monitors reset. Fingers crossed.
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