1994 HYUNDAI GENESIS COUPE
243,165 MILES
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SATS
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1994 Hyundia scoupe 1.5 12v the car starts to back fire when under load I have changed the plug wires , coil, plugs and fuel pump but have no joy please help!
Jan 4, 2013 at 9:38 AM
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ASEMASTER6371
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start with a compression test. also, check vacuum with a gauge for any fluctuation in the reading

Roy
Jan 4, 2013 at 12:18 PM