The 1336 will stay until the PCM is able to successfully do a relearn. Sounds like you're doing the relearn correctly. With engine up to temp and idling, slap it to the floor and release when the rev limiter cuts it out. Ask if the car has been anywhere to have had the PCM reprogrammed or replaced. If a new CKP had been installed, the PCM would still be using the original learn and would have no idea it had been replaced. For a PCM to generate that DTC out of the blue, that makes a pretty strong case for a faulty PCM. The down stream O2 DTC would have no effect on the CKP learn.
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Today's Featured Article - An AC Model M Crawler - by Anthony West. Neil Atkins is a man in his late thirties, a mild and patient character who talks fondly of his farming heritage. He farms around a hundred and fifty acres of arable land, in a village called Southam, located just outside Leamington Spa in Warwickshire. The soil is a rich dark brown and is well looked after. unlike some areas in the midlands it is also fairly flat, broken only by hedgerows and the occasional valley and brook. A copse of wildbreaking silver birch and oak trees surround the top si
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