1994 Chevrolet Lumina Engine Misfires You Turn Key Wants Start Makes Boom Noise

1994 CHEVROLET LUMINA
190,000 MILES
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my engine misfires and when you turn the key it wants to start but makes a boom noise can anyone help me , it has a good fuel pump, water pump, alt. ,starter , router, distriubutor , all the hose's are good and thats about it , i tried carb cleaner , didnt work , almost caught the van on fire but thats another story ,, can you help please , i have no money to fix it and thats why im here.
Feb 17, 2013 at 6:27 PM
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HMAC300
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scan for codes by using a paperclipp in a&b in aldl belwo dash on left side. count the flashes then go back to site here an dlook uner obd1 for codes it will be aseries of three flashes like 1 then 2 that wold be code 12. check fuel pressure if port fuel it shold be 41-47 psi if lower then it needs the fuel system looked at.
Feb 17, 2013 at 6:50 PM
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