Multiple Misfire P0300

[06T200]

Yeah helps to button things down so you don't crack exhaust parts or other more expensive stuff anyway. Keep us posted.

[Stevezilla]

I put the car back together, I'm getting ready to take it to the dealership. They charge $160 per hour.

I used Torque to monitor misfire events over time.

Using misfire cylinder history - plotting the graph over time, I also included engine load.
Cylinders 2 and 3 are 'misfiring'
over a five second interval the cylinders misfires about 100 times. That does not seem possible.

So the misfire history - what does that record? I thought this was a counter incremented by one when the car has a misfire in this cylinder.

Let me see if I can post some graphs.

[06T200]

Im guessing it needs a CKP relearn. The dealer can do this for you.

[avguy]

Puzzling that there's no performance drop, given what's being reported for misfire. Was there ever any performance issue? (before you replaced anything). What are the fuel trim values? Misfire like you're getting should have corresponding high positive or negative fuel trim values.

[Stevezilla]

CKP Relearn solved the issue. I took it back to same shop and suggested that this might be the issue, and they did the work.
It was $40 cheaper than going to the dealer - but the real benefit was that were located within walking distance to my home.

[Stevezilla]

YES CKP - relearn for the WIN baby

[06T200]

Cool! Thanks for the follow up.