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Old 02-21-2008, 05:51 PM   #1
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Default Too Much Air??

Ok, so, Im deffinatly not a mechanic so Im gonna just throw this out there...


My birthday is March 2nd and Im gonna order new custom plates, which of course means ECheck time...Well the problem is my "SES" light is on...I dont remember if it was on before all this work was done honestly I cant, but I put on P Logs and ported rear manifold, fwi, 3" downpipe, 3" cat, 2.5" cat back....well my cat is already turning blue, which means its lean? right? well a guy at work suggested that I may need to upgrade my injectors to equal out the the air to fuel ratio?? Again if this is off, dont laugh lol Im not a mechanic and I didnt think of it hahaha HELP!!!
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Old 02-21-2008, 05:58 PM   #2
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Your current fuel injectors are not even close to being maxed out yet. Lean conditions do result in more heat but the catalytic converter is normally very hot. I would get your car on a scan tool and see what'* up; Autozone can even plug in and tell you the code(*) in less then 5 mins It'* very possible you just have a dirty MAF (Mass Airflow sensor) which can be cleaned easy or something of the likes.

Ed
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Old 02-21-2008, 05:59 PM   #3
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stainless steel turns blue/purple from heat... happens all the time on motocross bike mufflers. i think it'* normal on cars too...
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Old 02-21-2008, 08:13 PM   #4
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I'd have to agree. And definatly get the codes pulled. It will at least point you in the right direction of what is malfunctioning.
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Old 02-21-2008, 09:57 PM   #5
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3" is far too big for your current mods, and is hurting you, but that'* not your problem.
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Old 02-21-2008, 10:26 PM   #6
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Thanx for the advice guys...and Wren yes it is my problem?? I mean if its hurting my car?? What exactly is it doing wrong? You're the first to say so...
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Old 02-21-2008, 10:38 PM   #7
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Quote:
Originally Posted by K-OtiK
Wren yes it is my problem?? I mean if its hurting my car?? What exactly is it doing wrong? You're the first to say so...
I think he meant that it'* not the source of your trouble light, not that it'* something to dismiss.
As for hurting, just in the performance department. You might be losing a little bit of power.
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Old 02-21-2008, 10:57 PM   #8
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Quote:
Originally Posted by smellbird
Quote:
Originally Posted by K-OtiK
Wren yes it is my problem?? I mean if its hurting my car?? What exactly is it doing wrong? You're the first to say so...
I think he meant that it'* not the source of your trouble light, not that it'* something to dismiss.
As for hurting, just in the performance department. You might be losing a little bit of power.
Wow, yeah I looked at that wrong...lol sorry if I sounded rude Wren
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Old 02-21-2008, 11:33 PM   #9
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Id be willing to bet anything you're going to find P0420, insufficient catalyst, for the code. I started getting it as soon as i got a 3" DP and cat....

Without pullying down i do kind of agree that 3" is overkill for your mods. However i don't quite buy this whole 3" exhaust is going to hurt your bottom end discussion. I know guys who are pretty involved in the GTP modding scene who claim this is nonsense. Has anyone tested this claim either at the track or on a dyno where the only variable changed was the 3" DP?
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Old 02-21-2008, 11:42 PM   #10
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Yeah I see where you're going....I dont know if you remember this but I had motor trouble and I just had Ed Morad replace it with an L32...Well I still have the Gen 3 */C on there...I was probably gonna get the Gen V in May when we all get that check from Federal, I am going to do the Gen V and a smaller Pulley drop...is this going to help my "performance problem"
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