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Re: Ford 4.6 backfire on startup & wierd fuel trims
Posted to Technical Discussion Forum on 11/28/2007 3 Replies

Thanks! I looked over all the sensors and everything looked normal except what I posted. ECT was 30 deg and IAT was 29. Thermometer said 30.6 deg when I left home. With the fuel trims where they are when warm and the Baro being off I suspect I have a junk MAF ... Login to read more.

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