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jruppert · 04-20-2003, 01:29 PM

I am getting these 2 codes. I just installed a 347 in my '94 and when I start it up the check engine light flashes but doesnt stay on. From what I have been told, the first code has to do with the chip that I have plugged into the computer. The second one I dont know about. It has to do with the 'fuel pump secondary circuit failure'. Anyone know what would be causing this and how I can check it?

04-20-2003, 01:29 PM	#1
jruppert Registered Member Join Date: Jul 2001 Location: Reed City Mi Posts: 106	511 and 543 codes.. help I am getting these 2 codes. I just installed a 347 in my '94 and when I start it up the check engine light flashes but doesnt stay on. From what I have been told, the first code has to do with the chip that I have plugged into the computer. The second one I dont know about. It has to do with the 'fuel pump secondary circuit failure'. Anyone know what would be causing this and how I can check it? __________________ '94 GT, 347 stroker, AFR 185's, Trick Flow stage 2 Cam, Edelbrock upper and lower, 70mm Tbody, 77mm MAF, 24lb injectors, 255 lph pump, underdrive pulleys, 1 5/8 Motorsport Headers, king cobra clutch, tremec tko, 3.73 gears, flowmasters