Crankshaft position sensor?

Anyone ever have to replace your crankshaft position sensor and still have an SES light? I've had an SES light for weeks. I could get rid of the light by disconnecting the battery, but anytime I turned on the A/C the light would be there the next time I started up. I ran the ODBII codes on my 02GT and it came up that I had a problem with my crankshaft position sensor.

I replaced the sensor this weekend and the SES light was gone since I disconnected the battery, but wouldn't you know that when I used the A/C the light came back on!

The crankshaft sensor and wiring is right next to the a/c compressor so somehow the a/c is causing it to not read properly. Since I already replaced the sensor, should my next move be to check the wiring going to the sensor, or should I still hold out hope that the SES light will go away in a few days.

Any input would be greatly appreciated, thanks!

Anyone?

vtecgsr952000 said:

are you sure you dont mean SRS light? never heard of an SES light. the SRS light is supplemental restraint system (airbag), and you need ford diagnostic equipment to pull codes from the SRS module. hope this helps.

frank

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Sorry, by SES I meant the Service Engine Soon light. I replaced the crankshaft position sensor because the only ODBII code that came up was for the crankshaft position sensor. However even after replacing it the Service Engine Soon light is still on.

wickedgt70 said:

I may be wrong, but I think that there are some codes that must be "erased" from the ECU's memory and will not go away even if the battery is disconnected. That means getting the code read and erased. The above may be incorrect info, but I had to buy a diagnostic code reader/eraser in order to remove a different code...

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Hmmm, that's interesting. I think I have heard of having to "hard remove" error codes with an eraser when disconnecting the battery doesn't work. You would think the computer would sense the crankshaft sensor is working properly now though .

Anyway, thanks for the idea, I'll look into it.