95 LT1 lean bank at WOT

[95lt1383]

Can anyone help me, just got a tune from Solomon put it in the PCM took the car out to log it, sent log to Solomon and he replies that my driver side is running very lean at WOT.
Searched for vacuum leaks and nothing, searched for exhaust leaks and nothing, going to get a fuel pressure gauge but not sure how the fuel pressure would only drop at WOT.

Any help would be great

[MKCoconuts]

When you hit WOT, the computer is supposed to go into "power enrichment" mode, which adds extra fuel to prevent going too lean at WOT which can be very bad. If it's only doing it on one side and there's no exhaust leaks, I would suspect an injector issue. Ohm them out and see what you get.

[MoeHorsePower]

swap out injectors from bank to bank to eliminate a faulty injector

[95lt1383]

Thx for the help guys, I pulled the plugs and #3 cylinder is very white the rest of the plugs look good. Going to check spark and fuel pressure before I get into the injectors.

[tleed]

You can loosen the fuel rail pressurize the system then lift the rail and look for leaking injectors