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

P0172 Code? Here’s the Exact Fix (Step-by-Step) Symptoms: Rough idle Black exhaust smoke Decreased fuel efficiency Illuminated check engine light Tools Needed: DiagtPro X400 Scanner Multimeter Smoke machine for leak

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 Step 1: Test Fuel Trim Values Hook

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

P0172 Code Fix? Here’s the Exact Fix (Step-by-Step) Symptoms: Rough idle and decreased fuel efficiency Black exhaust smoke indicating rich fuel mixture Illuminated Check Engine Light (CEL) with P0172 code

P0172 Code Fix? Here’s the Exact Fix (Step-by-Step) Symptoms: Rough idle and decreased engine performance Black exhaust smoke indicating excessive fuel consumption Illuminated "Check Engine" light on the dashboard Tools

P0172 Code Fix? Here’s the Exact Fix (Step-by-Step) Symptoms: Rough idle Black exhaust smoke Decreased fuel efficiency Engine light on with P0172 code (Bank 1 Too Rich) Tools Needed: DiagtPro

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: Measure Fuel

P0172 Code Fix? Here’s the Exact Fix (Step-by-Step) Symptoms: Rough idle and decreased fuel efficiency Black exhaust smoke indicating rich fuel mixture Check Engine Light (CEL) illuminated on the dashboard

P0172 Code Fix? Here’s the Exact Fix (Step-by-Step) Symptoms: Rough idle and decreased engine performance Black or dark exhaust smoke Decreased fuel efficiency Illuminated Check Engine Light (CEL) Tools Needed: