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Re: 99 Ford Winstar diagnose eng. light on w/codes
Posted to Technical Discussion Forum on 12/3/2001 4 Replies

[...trimmed text...]

HI Jerry,

That isn't much info. to go on. Two very important things you left out are:

1. What are long and short term fuel trims?

2. Are the O2's active?

Alan Punk Pack

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4 Replies Received (View Replies)