P0300?

[jorgea3281]

What could be causing my to misfire? Thank you for your help.

 

[zinger002]

http://www.aa1car.com/library/misfire.htm

 

[jorgea3281]

good stuff, thank you. I'll start with buying injector cleaner and some new plugs. Makes me think of whats going on, only had that one code. And the car is running normal.

 

[jorgea3281]

What plugs should I get with the mods that I have.

 

[keymaster]

If you're running an AP you should already have the step colder plugs. I have the Denso ITV22 plugs, they are a step colder and usually the ones that people like.

 

[zinger002]

im still running stock plugs with the mods in my sig.

 

[jorgea3281]

Well I reset the PCM for the code. Then no codes for a day. Ysterday have a new code, P0302 misfire #2 cyinder. At least it has been narrowed down. I'm still planing on buying the new plugs(one step colder).

 

[jorgea3281]

Ordered new plugs(ITV22). No light since I last posted here. At least there is no down side to installing the plugs.

 

[04gixx6]

Ordered new plugs(ITV22). No light since I last posted here. At least there is no down side to installing the plugs.

Where did you order yours from? I have been needing to reorder mine, but i'd like to know if they are pre-gapped.

 

[jorgea3281]

I dont know if I can say from where because they are banned from here, I think.

 

[04gixx6]

Yeah. I just checked their site a few days ago and didn't see the 22's, all they had were the 24's. Ill have to check again. As well if they have them pre-gapped. I think that screwed me over the first time. Although my CEL only comes on 40 degrees and colder. When it's above 40, no CEL for misfire.

 

[keymaster]

I bought mine on Amazon, those were the cheapest prices at the time.

 

[bova80]

Yeah. I just checked their site a few days ago and didn't see the 22's, all they had were the 24's. Ill have to check again. As well if they have them pre-gapped. I think that screwed me over the first time. Although my CEL only comes on 40 degrees and colder. When it's above 40, no CEL for misfire.

you don't want 24's. those are 2 step colder and probably wouldn't work well with few mods.

 

[zinger002]

when would 2 step colder plugs be ideal?

 

[kahmikahze]

werent the 24s for heavy mods, like bigger turbo, forged pistons, etc?

 

[bova80]

they would be ideal when you are running a lot more boost pressure, i'd say 22psi+

 

[04gixx6]

you don't want 24's. those are 2 step colder and probably wouldn't work well with few mods.

Right. I was just stating that they didn't have the 22's on the site. I wasn't planning on getting the 2 step colder

 

[Jay Davidson]

SU (also-known-as "The vendor that shall remain nameless") has them in stock, but it does look like Amazon is cheaper right now.

I've been running ITV22s for several months now. I picked them up when I started getting a P0300. I haven't had a CEL since then, the car runs smoother, and my KRs were greatly reduced. Keep in mind that, just because they say "pre-gapped" doesn't mean they really are. If I recall, only one of the four that I received was gapped between .030 and .032.

-Jay

 

[04gixx6]

SU (also-known-as "The vendor that shall remain nameless") has them in stock, but it does look like Amazon is cheaper right now.

I've been running ITV22s for several months now. I picked them up when I started getting a P0300. I haven't had a CEL since then, the car runs smoother, and my KRs were greatly reduced. Keep in mind that, just because they say "pre-gapped" doesn't mean they really are. If I recall, only one of the four that I received were gapped between .030 and .032.

-Jay

Right on, thank you sir!