Ok So I check the coil packs and wires all look good. They are all brand new, new wires,coils and spark plugs.


I cut the flange right behind the second set of cats and took the entire muffler and pipe off of the car. I cut muffler open, nothing inside, no chipmunk nests ect. I have the exhaust off up to the cats, no plugs, looked inside the cats and the screen looks ok, not plugged.


I cleaned the metal flap by the air intake with carb cleaner and wiped clean.


I put Lucas Oil injector clean in the gas


I put a bottle of Rislone in oil to remove any engine gunk or lifter chatter. I have no lifter chatter or knocking.



I scanned the computer and get codes:
P0206 - Injector Circuit Open Cylinder 6

P0412 - Secondary Air Injection system switching Valve A Circuit
P0403 - Exhaust Gas Re-circulation Control Circuit
P0155 - 02 Sensor Heater Circuit Bank 2 Sensor 1
P0306 - Cylinder 6 Misfire Detected
P0306 - Cylinder 6 Misfire Detected


There is no power when i hit the gas. In drive when i depress gas pedal fast the car takes a few seconds to get up to speed. Slow take off.


Sounds like the car is sucking in air by the MAF sensor first before the car starts moving. I can hear air sucking when i hit the gas and then the car slowly gets up to speed.



Any thoughts. This one is puzzling me. Also Note I changed all fuel injectors, all are new. MAF sensor new, ECU new, and programmed properly, New CPS sensor.