Engine Performance problem
1999 Acura TL 6 cyl Front Wheel Drive Automatic 148000 miles
I replaced my O2 (bank 1) sensor and a week later my vehicle began misfiring on all cylinders. I ran the codes and it said P0301, P0302, P0303, P0304, P0305, and P0306 - all cylinders misfiring - as well as the Multiple Misifre code of course. It also registered P1399 - Manufacturer Control Ignition System or Misfire - which is not an acura trouble code. I therefore replaced all my spark plugs, my EGR Valve, and one Coil Pack that had a hairline fracture. I cleaned my EGR Valve Ports using Sea Foam twice and used MAF Sensor cleaner to clean the MAP Sensor. The vehicle still registered P1399. Shortly after, P0305 registered followed by the remaining P030's. The vehicle feels like it's misfiring. My catalytic converter needs replaced soon. What can be the cause of the misfire? And what would cause the P1399 trouble code?
have the same problem?
Monday, December 29th, 2008 AT 8:41 AM