Questions & Answers for: Buick LaCrosse misfire code

...ultra sound & spray pattern matched I will guess you have as most vehicles do today ignition misfires,then you can check the egr valve,O2 sensors,clean maf sensor & basically just make

...Code P2097 has to do with the performance of the down stream, O2 sensor (after the CAT). P0301 refers to a misfire detected on cylinder #1. Testing needs to be performed. Check oil quality and level. ...

a bad coil pack or spark plug. If the engine light was flashing at any point, its probably a bad coil pack. Run a scan to see which cylinder had a misfire code, this will indicate where the problem is

misfire code when it sees a lag in the signal from the crankshaft position sensor. If the crank's rotational speed suffers a power loss from a cylinder not putting out as much power as the others, the