Funky Misfire..

[CypressGreenEJ]

So my ES has several codes coming up.. Misfire cylinder 1, misfire cylinder 2, misfire cylinder 3 and random misfire. Has a rough startup and idles funny.. Has a misfire going down the road. I literally changed all plugs (with OE Denso) and all 4 coils a month ago or less. CEL went away for a while then came back.. I checked for intake manifold leaks and I checked all the hoses I could and no leaks or cracks are found. What else could it possibly be? It doesnt seem like a head gasket because there's no mixture of coolant and oil, I literally checked that a week ago and this morning.

It's a D17A2 with an auto trans. Any help would be appreciated. Thanks in advance!

 

[CypressGreenEJ]

How long have you been having this problem?

Did problem start after doing some work on the car?

Any additional CEL codes or just the misfire codes?



Under what specific driving conditions?

No, it just randomly started like that for some reason. It happens pretty much in all driving conditions. I got only those misfire codes and the problem only started a couple weeks ago

 

[CypressGreenEJ]

You may have got some bad fuel. Measure the fuel pressure and check for clogged fuel injectors.

that's a good idea actually.. I didn't think about that