thanks outstanding page very imformative i am getting the following codes but engine is running perfect no problems good idle no misfiring here are the codes #5,6,8,9,18 i check every vacum hose and plug and they seen tight and clean. How do I reset the light? last week i was working on a fuel
problem i installed a new fuel PS regulator and i ran the motor without the air filter could that be a problem? car cranks good hot or cold under 4 seconds