Scoupe L4-1468cc 1.5L SOHC VIN J MFI (1994)
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Poor combustion in the cylinder. Faulty ignition plug, ignition coil, injector, incorrect compression
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Air leaks in the intake manifold
Using Scan Tool
Using Voltmeter
NOTE: When the vehicle is new (within initial operation of about 300 miles, the mass air flow sensor air quantity may be about 10% higher.