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Q: Tough time shifting,now code p0172. Replaced Cam Sensor & Acc. Clog cad conv? on 2004 GMC Envoy

Replaced the Cam Position sensor and Cam position actuator solenoid{plus pigtail}. Running very lil smoother, it seems to have a very hard time shifting into the next gear. Or if I back off on the gas it will shift... thinking maybe clogged cad converter... thoughts or suggestions????
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