bogs down on acceleration

1994 CHEVROLET SUBURBAN
260,000 MILES
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MPLSBADBOYZ
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I got a 94 Chevy 350 motor it starts fine and runs fine but when I excelerate and give it a lot of gas it bogs down
Apr 20, 2013 at 8:01 AM
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HMAC300
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scan for codes and check fuel pressure first
Apr 20, 2013 at 8:17 AM
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MPLSBADBOYZ
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fuel pressure is fine anything else
Apr 20, 2013 at 8:33 AM
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HMAC300
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what is pressure? did you scan for codes. if hti sis tbi did you check for soft hose going to map sensor or blown gasket under tbi unit?
Apr 20, 2013 at 8:50 AM
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MPLSBADBOYZ
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how do I check for codes in an 94 Chevy Suburban 350
Apr 20, 2013 at 9:00 AM
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HMAC300
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cross A & B on the aldl with a paper clip turn key on an dwatch light flashes, light will flash three times twice like once then twice =12 get allcodes and come back to site look under OBD1 diagnostics. code 12 is normal with key on and engine not running.check fuel pressure it should 9-11 psi for tbi.
Apr 20, 2013 at 9:05 AM
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