P0304 code

[FL5ghost]

So after weeks of these trouble codes popping up. The car had new spark plugs put in and the 1400cc injectors were set to 1360 within hondata the car was running well with no codes at all. unfortunately this morning when I started the car up I got a flashing CEL which ended up going away I decided to check my trouble codes and BOOM not to my surprise another damn misfire code… yet the car isn’t actually misfiring and felt fine on the way to work. What is the cause? What is the fix? This is starting to become annoying.

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[PointByPatrol]

So after weeks of these trouble codes popping up. The car had new spark plugs put in and the 1400cc injectors were set to 1360 within hondata the car was running well with no codes at all. unfortunately this morning when I started the car up I got a flashing CEL which ended up going away I decided to check my trouble codes and BOOM not to my surprise another damn misfire code… yet the car isn’t actually misfiring and felt fine on the way to work. What is the cause? What is the fix? This is starting to become annoying.

Is this just on a base Hondata tune? I've got 1400's that I'm going to install as well, so this has me a bit concerned. May be worth datalogging and having @Jester04 take a peek at the data.

 

[Jester04]

Is this just on a base Hondata tune? I've got 1400's that I'm going to install as well, so this has me a bit concerned. May be worth datalogging and having @Jester04 take a peek at the data.

Already checked his stuff and everything is on point. It’s a startup thing that sometimes the ecu interprets as a misfire event. Happened to me on stock hardware too. Then it went away.

He does need to adjust his fuel trims which were a bit off.

 

[PointByPatrol]

Already checked his stuff and everything is on point. It’s a startup thing that sometimes the ecu interprets as a misfire event. Happened to me on stock hardware too. Then it went away.

He does need to adjust his fuel trims which were a bit off.

Is it always a P0304 code? Maybe a stuck injector that leaks a little bit of fuel while the car is off?

 

[Jester04]

Is it always a P0304 code? Maybe a stuck injector that leaks a little bit of fuel while the car is off?

He has is jump around, which happened to me on the stock injectors as well. Really nothing to be concerned about.

 

[FL5ghost]

Already checked his stuff and everything is on point. It’s a startup thing that sometimes the ecu interprets as a misfire event. Happened to me on stock hardware too. Then it went away.

He does need to adjust his fuel trims which were a bit off.

Fuel trims were adjusted?

 

[PointByPatrol]

Is this why he's unloading in 3rd?

 

[Jester04]

Fuel trims were adjusted?

I know, now we just have to wait. I know the events have decreased in intensity. Let’s keep an eye on it.

 

[Jester04]

Is this why he's unloading in 3rd?

Fuel map has a nasty hole?

 

[PointByPatrol]

Fuel map has a nasty hole?

I figured as much!

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