2002 Pontiac Bonneville SSEI 3.8L Supercharge code P0243 boost control solenoid a circuit

Question

Car still boost regular on low rpm butt when I stomp on it it's not giving me full power feels like it's not getting something recently tuned up so it's not that's if I keep trying it check engine light blinks

Answer 1

P0243 Turbo /Supercharger wastegate solenoid "A"

CK ENG LT blinks? that would be a misfire condition. If the engine boosts at low RPM, you would be able to boost at a higher RPM. Check the sparkplug wire condition. And the ignition coil.

The sparkplug could be good, there is the ignition wire that can leak secondary ignition voltage under load, or even an ignition coil shorting out under load condition, The blinking CK ENG LT has to be addressed.

Listed as # 2 is the boost solenoid. P0243, means you have an improper voltage level at this solenoid. a shorted boost solenoid internally can set P0243.

Answer 2

P0243 PONTIAC Code - Supercharger Boost Solenoid Control Circuit
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