P0300 P0102 P0103 P0108 P0340 Diagnosis and Fix for 1996 Chevy Astro Van 2WD
My 1996 Chevy Astro Van 2WD cranks but will not start. It only starts with starter fluid, indicating a serious fuel delivery issue. After draining the fuel tank, the remaining liquid did not smell like gasoline and appeared watery—suggesting possible fuel contamination or system failure. The vehicle is showing multiple OBD-II fault codes: P0300 (Random/Multiple Cylinder Misfire Detected), P0102 (Mass or Volume Air Flow "A" Circuit Low Input), P0103 (Mass or Volume Air Flow "A" Circuit High Input), P0108 (Manifold Absolute Pressure/Barometric Pressure Circuit High Input), and P0340 (Camshaft Position Sensor Circuit Malfunction - Bank 1). I need help diagnosing and resolving these issues to get the van running properly. Fuel pressure should be checked using a fuel pressure gauge as recommended by OBD-II code references.
P0102: Mass or Volume Air Flow "A" Circuit Low Input P0103: Mass or Volume Air Flow "A" Circuit High Input P0108: Manifold Absolute Pressure/Barometric Pressure Circuit High Input P0300: Random/Multiple Cylinder Misfire Detected P0340: Camshaft Position Sensor Circuit Malfunction (Bank 1) For detailed code explanations, refer to OBD-II trouble code database: https://www.obd-codes.com/trouble_codes/\nRecommended next step: Check fuel pressure using a fuel pressure gauge to identify potential fuel system failures or contamination.