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2002 ECU calif vs fed emissions

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Old 13 Jun 2010, 07:04 pm
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Default 2002 ECU calif vs fed emissions

Hello and thank you for taking the time to read this post. My roomate has a 2002 2.4L AT and thinks she needs a new ECU. The cerror code she has is a 340 ? its the code for the cam position sensor. Anyways she had that replaced and still gets the same cam sensor code. so she has been told that it may be the ECU has failed. My question is this....Can a ECU programmed with fed emmisions code be used on hers which has the CA emission code. Or does she have to get the one programmed for CA?

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Old 13 Jun 2010, 07:21 pm
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Default Re: 2002 ECU calif vs fed emissions

Welcome to the both of you. You should have PXXXX with 4 digits. If you used a aftermarket sensor, that may be a problem. PT's for some problem does NOT like aftermarket sensors. You also need to remove the negative battery for about 15 minutes, that may clear the codes.

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Old 13 Jun 2010, 07:47 pm
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Default Re: 2002 ECU calif vs fed emissions

thank you for your reply... My post may have been a little bit confusing. My question is does it matter if I replace the computer which is programmed with CA emissions, with one that is programmed with Fed emissions.. CA Vs. FED

I have ECU with CA emissions
I want to replace with Fed Emissions

will it work?

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