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Codes 232 and 221 700 1990

posted by  Rule 308 on  Tue May 10 03:47 CST 2005
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last visit: Tue May 8 09:20 CST 2012
[RELATED]

You need to figure out which direction the control unit is in. Has it marched the intergrator values rich or lean? With the factory tool it is no problem as it will tell you straight up on the status page, it will say "upper limit" or "lower limit". Without knowing this piece of information it is kind of tough to say which direction to go in. I would start by checking it over for vacuum leaks to start.

Mark






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