I am seeking enlightenment and recommendations on what to look at and/or try, to prevent a single fault code, PO245, from being generated and the associated CEL (Check Engine Light) from illuminating.

The scenario: Using a OBDII Code Reader, the fault code is erased and the car’s memory is then confirmed to be clear, which also resets the CEL. The car is then started and within seconds the CEL illuminates and the PO145 fault exists. No other faults are generated. The car operates normally and smoothly with no degradation in performance in all ranges of driving. After a full drive cycle there is still no change in the CEL or fault code. I then repeated the process: (erase the fault code, confirmed memory was clear and started the engine) with exactly the same results.

Fault Code PO245 - Turbocharger Wastegate Solenoid A Low

My question is: "What are the top three things that could generate just the PO245 fault immediately upon start up, and still allow the engine to perform as good as new?"

I performed searches on the Brickboard Forums for "PO245" and "245" without finding anything that would help. I am hoping that the collective knowledge base and brainpower of those that use this Forum might help me.

FYI: As part of a planned major self-service this last weekend, I pressure washed the engine compartment (being careful not to get moisture near the ECU box, alternator or fusebox area). Then replaced the following; Spark plugs, Cap, Rotor, Ignition Wires, Timing Belt, Serpentine Belt, Fuel, Air & Oil filters, gaskets on the turbo oil drain tube, Brake Rotors & Pads, Instrument bulbs (all 25), Rear Hatch Struts, Trani fluid and coolant, installed the IPD Upper engine mount, and cleaned the throttle body. I mention the pressure washing and parts replacement as maybe it or they attributed to this fault?

Thanks in advance for your help.
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Original owner of 1996 TLA Limited Edition 855 T with 71 K miles. She receives lots of regular care and feeding and n return, I continue to get a great ride. Looking forward to driving my way to 200 k on the odometer.

Found the problem. Some good advise from another Forum suggested that I check the control valve under the airbox (with three vacuum lines and a two wire electrical connection). BINGO! I forgot to reconnect the two wire connector. I erased thew fault code and now it isa gone forever! YEHAA!
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Original owner of 1996 TLA Limited Edition 855 T with 71 k miles. She gets lots of care & feeding and n return I get great ride. Looking forward to driving her way to 200 k.

I can not speak to this particular code. However, you mentioned the preasure washing and that made me concerned with the Air Pump and the associated check valve. In my 96 GLT 110K the air pump (located under the battery and tray) became a water pump. It seems that the valve (behind the Oil Cap) (top of Engine) often sticks open and allows moisture to enter what should be an Air Pump. This reduces the abilty to bring air into the exhaust system upon engine start.

I would check to see if this pump is water logged. FCPGroton.com has great price on replacement and upgraded parts. 2 hour job to replace.

Hope this helps