on_alert

Are lean codes something i really have to worry about?
I have gotten one front bank code (where my egt meter is) and i think 3 rear bank codes (no meter).

Should I be worried about this, i have heard no sounds of detonation or knocking. I did a search on the code and came up with:
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The Front Heated Oxygen Sensor for the right bank sent signals to the Engine Control Module indicating an
excessively lean fuel mixture. The ECM attempted to correct this problem by directing the fuel injectors to
supply more gasoline. Further signals from the Oxygen Sensor indicate that the attempt to correct the lean
mixture condition was unsuccessful, and the fuel mixture continues to be too lean.


Possible causes include ...
- Intake air leaks
- Defective Front Heated Oxygen Sensor
- Fuel injectors
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Faulty Mass Air Flow Sensor
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I am using an 8:1 fmu, and run 8 psi of boost.
I havent done a compression check since i added boost.

On a side note, the other day i was getting on boost hard and for some reason my boost controller misbehaved. My boost shot up to 14 psi for a split second, i have warning lights hooked up for anything over 10 and as soon as i saw it I let off. Could that cause any severe engine damage?

LatinMax

iTrader: (1)

Have you pulled your plugs yet.
Plugs tell it all.