so iv noticed lately my car is getting a random misfire at idle when i start it up, doesnt happen all the time, dashdaq sees it, but it doesnt throw a code, and when i scan for a code on dashdaq there is nothing, but when i clear code, misfire reading on the gauges in the dashdaq goes away. whenever it does this a few seconds later my car sputters a little. Would u say new spark plugs or whats the deal? i got 21k kms on these ones and maybe 6k with tune. i ordered one step colder plugs.

will this fix my problem or is it something else?

 

they are ghost misfires , they are not real. dont worry.

 

what about the engine sputtering whenever it happens? it doesnt do it when i dont get those misfire readings

 

My interceptors read the same thing. I get 7-10 a minute at idle.

 

same thing here with the interceptors. when im idling it'll say 37 misfires.

 

37???!!!!! wow. I get maybe 4 at the most and i thought that was bad

 

Front O2 sensor! 09 Part Number - 12589380

 

but 3 or 4 random misfires every so often is ok right?

 

I've gotten 19 at idle when it's warming up...already have an 02 sensor on order lol but it's normal for that to happen.

 

wow 19? damn. I was worried over nothing i guess then.

 

so my front o2 sensor is bad then? thats gay. why would it be bad already?

 

****, mine misfires all the time. 2-37 on cold starts

 

Tuning the car seems to toast the O2 super quick. BYT or Termi could probably give you a better answer as to why it happens than I can, so I'll just leave it up to them.. hehe