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Old 02-13-2012, 07:41 AM   #16
Sendero
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Join Date: Dec 2004
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Looks like that smog pump isn't hooked up...

Any MIL (Check Engine) lights? What are the codes? If the MAF is failing, it will run like crap. If the SMOG/Emissions system isn't properly working or leaking unmetered air, it will run like crap. If it doesn't "see" the rear O2's, it can run like crap. If the IMRC failed you can wire them open and it will run OK, but it should idle slightly rougher than stock around 600-700 rpm.

The MIL light bulb could be out so I would hook a reader into the OBD port and see what codes are stored.
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