Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1987STEP VAN P20, 6.2 J, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISCCC TBI TESTS W/CODESDIAGNOSTIC CHARTSCODE 44 - LEAN EXHAUST INDICATION ("SCAN" DIAGNOSTICS)FUEL CONTAMINATION
1987 Chevrolet Step Van P20, 6.2 J, Standard
Fuel Contamination
1987 Chevrolet Step Van P20, 6.2 J, StandardSECTION Fuel Contamination
Water, even in small amounts, near in-tank fuel pump inlet can be delivered to fuel injectors. Water causes a lean exhaust and can set Code 44.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.