P0172 Code Fix? Here’s the Exact Fix (Step-by-Step) Symptoms: Rough idle and decreased engine performance Black smoke from the exhaust pipe, indicating excessive fuel consumption "Check Engine" light illumination with

P0172 Code Fix? Here’s the Exact Fix (Step-by-Step) Symptoms: Rough idle Black exhaust smoke Decreased fuel efficiency Tools Needed: DiagtPro X400 Scanner Multimeter Smoke test kit Step 1: Test Fuel

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P0172 Code Fix? Here’s the Exact Fix (Step-by-Step) Symptoms: Rough idle Black exhaust smoke Decreased fuel efficiency Check Engine Light (CEL) illumination Tools Needed: DiagtPro X400 Scanner (for accurate live