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Got a cel fot ramdom misfire about 1.5month ago (all 4). Today ran it again though my scanner and got misfire cyc. 2 , cyc. 3 and cyc. 3.
Is it because I am running to lean?

List of mods:
HKS Log Style Manifold
Garrett T25 Ball Bearing Turbo
SF Fuel System
IK20 Spark Plugs
Johnny Racecar Intercooler
HKS SSQ BOV
AEM Cam Gear
AEM Tru-Time Pulley
Hallman MBC
Synapse Missing Link
Custom Made Intercooler Piping and Downpipe

Exedy Organic Clutch &
ACT XACT Streetlite Flywheel

 
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could be from running rich also. what psi

 
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running at 6 psi b4. now turn it down to 4.5-5.

 
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when i am on vac. it would be around stoich and when I go into boost it will go from rich/stoich to lean. Let off the gas/out of boost, it go back to rich.

(dam it, i should have gotta a wideband)

I am thinking it is the fuel system.

 
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It could also be an issue with your spark plugs. They might need to be regapped. But see if you can get a wide band on it. A compression test wouldnt hurt either.

 
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what should the plugs gapped at?

 
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should be .44, i know dsm guys who have theirs gapped at .32, are your running 93oct or higher?

 
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running 93oct
have to stop somewhere and get a gapper first.

off topice: SODJAZERO - what kinda fuel system are you using?

 
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funny you should ask, i have guns old set up, with the alcy injection

 
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on a side note, the k20s should come pre gapped,

 
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check your plugs ... a few things happened to me when I was turbo'ed with the sf kit:

- the white plastic parts on the plugs cracked due to detonation, which caused my plugs to misfire (plastic was covering the spark electrode)

- sf fuel pump was cracked and leaking ... causing me to run lean and detonation (I didn't know until I sold the kit)

 
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my spark plugs got messed up because i was running so rich i screwed them up they are very easy to **** up man

 
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I am getting to the point of doing a k20a3 or upgrade the whole fuel system to RSX-s Injectors w/ e-manage and tune it.
I really don't want to do a swap, because of all those $$$ I had alreeady put into this turbo (not to mention about the upgrade tranny (clutch & flywheel))

What do you guys think?

 
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I only run 91 octane. That is all that is available to me in Phoenix. I think its because its so fuc*in hot here. Its been 104 and sh** the last few days. Winter can be freezing, but no snow or anything. I think thats why we only have up to 91 (other than race gas down the street)?? race gas is too much money.

 
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Turbo IK20's should be gapped about.30. check the plugs and their burn if not then you may be having fuel problems

 
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mine did that alot with my emanage, i never figured out why or even tryed to figure out why. I was a temporary thing till I got the new comp.

 
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I just turn my boost level down to 4 - 4.5 psi. Until I get some injectors, emanage, and tunning.