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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
check injectors, they could be restricted causing the lean condition, the local napa used to have a rebuild service in house, i would take them there and they would test and repair any that were not flowing correctly. looks like he has thrown about every part at it excet those, another thing to check is the exhaust back pressure on that bank, a plugged cat can cause lean codes and a rough run
check injectors, they could be restricted causing the lean condition, the local napa used to have a rebuild service in house, i would take them there and they would test and repair any that were not flowing correctly. looks like he has thrown about every part at it excet those, another thing to check is the exhaust back pressure on that bank, a plugged cat can cause lean codes and a rough run
Thats what I told him too. He says that the cylinder balance test was OK, but it's tough to single one out. Cats are already gone.