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Ecotec 2.2 Engine Stalls on Acceleration with Codes P0122, P0223, P2135, and P0220

Model: Ecotec 2.2 Fault Code: P0122 Posted: 2014-12-22 15:59

My Ecotec 2.2 engine light comes on and the car almost stalls when I accelerate hard or medium—only allowing a very slight gas pressure to move forward. This issue occurs specifically when approaching a stop sign, where I nearly come to a halt before accelerating while turning. I recently replaced the throttle body sensor, but the problem persists and the same fault codes (P0122, P0223, P2135, P0220) remain. The battery is currently at 67% charge, though it's only six months old; the alternator has been tested and is functioning properly. I plan to recharge the battery and monitor if that resolves the issue. However, I'm seeking advice on potential next steps—any insights into these specific codes or possible underlying causes would be greatly appreciated. Thanks, Anthony

Related fault codes
P0122P0220P0223P2135
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