1995 Chevrolet Lumina Runs Rough Above Half Throttle Hill Low Engine Speed

1995 CHEVROLET LUMINA
180,000 MILES
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Runs rough above half throttle or up hill at low engine speed I changed plugs and wires but that only raised the speed that the roughness seems to start
Jan 3, 2013 at 12:00 AM
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RASMATAZ
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Check the fuel pressure with a gauge if its within specs, also the exhaust system for excessive backpressure then report back your findings-we start here

https://www.2carpros.com/articles/engine-misfires-or-runs-rough
Jan 3, 2013 at 12:06 AM
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