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Old 07-23-2014, 03:44 PM
Danny Weimer Danny Weimer is offline
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1990 302 back fire need help

I have a 1990 bronco full size with a 302 efi we have rebuilt the engine over a year ago. i am have a problem with back firing through the intake. This happens after being on the road for about 10 miles an running fine. the truck runs fine then loses power an when i give it gas the motor back fires. I have run Koer test an made all the repairs to that which was a egr switch an a broke line. I have have tested the fuel pressure when i turn the key on i get 23 psi i start the motor i get 35 i reve the motor it jumps to 40. the exhaust is only about 6 months old an the fuel was just topped off i am lost an ideas i live in the Dover Delaware an work in federalsburg Md if you would like to c or help me
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