Buick Skylark Exhaust

To Car Through Inspection And It Failed Because C0 % Was At 2.47 When It Should Be At 1.20. When Car Is In Park Or Reverse It Sounds Fine...

My Car Wouldnt Start The Other Day After Replacing The Crank Sensor.it Still Wouldnt Start It Seemed It Had Fuel And Sprk So For The Heck Of...

I Changed Plugs. They Were Covered With Carbon. And Drinks The Fuel. Since I Changed The Plugs The Car Does Run Better Once It Is Really...

Car Will Turn Over But Then It Backfires Through Intake. We Have Checked Timing, Catalytic Converter Was Clear, Ignition Module Was Ok, Coil...

Thanks Nos So Far For Your Suggestions. So Far: Car Sat For A Bit Before Returning To Service. Replaced - Transmission, Timing Chain/...