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A good starting point would be to look for a vacuum leak. You could check the condition of your vacuum lines (MAP sensor, boost bypass valve, fuel regulator, and the crankcase vent coming off the valve cover). Even if they aren't cranked, they can tend to harden with time, and not form a tight seal over their mounting points. After that, check the idle air control valve lines, your evap canister line, and brake booster lines. Other possibilities might include the throttle body to intake manifold gasket, as well as the intake gasket and fuel injector seals.

Since it's a lean code, if you check all of the above and still have concerns, you'd next want to check out the fuel system and also possibly the health of the upstream heated O2 sensor.

This can be a tricky one once you've eliminated the obvious possibilities, though if you're lucky, it will be something obvious. :)
 

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Discussion Starter · #3 ·
Still no luck

Every thing under the hood seems good. Will order new seals for
Injectors and see if that's a help. Put on new fuel pump as well. Next will check out the injectors. After I put new o rings on the injectors and make sure they are working fine I hope this will fix the lean code if not off to
The garage to get hit over the head:evil:
 
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