Misfire Code

[Hurricane87]

Getting the generic P00300. The solution offered by the parts store was to replace all the wires and coils (the plugs are less than two months old). I have a set of wires left over from my Monte Carlo, but I am not spending $500 to replace all the coils for no reason.

Is there any way to get this narrowed down?

 

[Scottydoggs]

cat could be clogged up.

 

[Fivefingerdeathpunch]

A live data scan tool that can read each cylinder for misfires is what you need. This way you can figure out what cylinders are causing the P0300.

 

[tomsteve]

A live data scan tool that can read each cylinder for misfires is what you need. This way you can figure out what cylinders are causing the P0300.

OT here but do you have a recommendation for one? preferrably not one requiring one of them fancy schmancy phones and reasonably priced

 

[Fivefingerdeathpunch]

I believe this one by Bosch does but they also sell a few different version with more features of this style scan tool. I would do some reading and maybe watching reviews to get a better idea.

Amazon.com

I'm spoiled because I have a small handheld scanner for quick stuff and then I use my laptop with tuner software if I really need to figure something out. I haven't looked real hard at what all these scan tools do now. Pretty much something in the $100-200 range should be able to read codes, do live data and also do ABS functions now.

 

[Hurricane87]

Misfire code disappeared when seven others appeared. All those are fixed, and no reocurrence.