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Intake, Header, HFC, CBE = Too Lean?

Originally Posted by Nitex Well it seems this thread may have answered my question that no one responded to on my own thread. Seems i threw a lean code P0171,

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Old 03-26-2010, 05:54 PM   #1 (permalink)
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Well it seems this thread may have answered my question that no one responded to on my own thread.

Seems i threw a lean code P0171, unless this is an 02 issue im wondering if i am indeed running to lean with out a tune. However after clearing the CEL my idle rpm returned to 600 from 1k.

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Well from reading this: Stillen CBE, Gen'3s and Berk HFC

It is a safe bet to say you are running too lean. Now if this is what caused the code, I cannot guarantee that. If one of the O2 sensors was damaged you would probably throw a different code, so we can rule that one out.

I would say it is time to get your car on a dyno and find out what that A/F is doing. If it is lean, you will need a tune. If you cannot afford a tune then put the stock intakes back on the car for the time being and I bet ten to one your A/F will go back to where it needs to be...

Tony
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Old 03-27-2010, 10:14 AM   #2 (permalink)
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Well from reading this: Stillen CBE, Gen'3s and Berk HFC

It is a safe bet to say you are running too lean. Now if this is what caused the code, I cannot guarantee that. If one of the O2 sensors was damaged you would probably throw a different code, so we can rule that one out.

I would say it is time to get your car on a dyno and find out what that A/F is doing. If it is lean, you will need a tune. If you cannot afford a tune then put the stock intakes back on the car for the time being and I bet ten to one your A/F will go back to where it needs to be...

Tony
Ahh great thanks! I can afford the tune(aerospace engineer), i was just debating uprev Dyno tune vs Cobb ap or maybee oasis ? just needed to do the research but it seems i may be running out of time. I just hope i havnt done any damage.


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Old 03-27-2010, 11:38 AM   #3 (permalink)
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Ahh great thanks! I can afford the tune(aerospace engineer), i was just debating uprev Dyno tune vs Cobb ap or maybee oasis ? just needed to do the research but it seems i may be running out of time. I just hope i havnt done any damage.


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You have not done any damage, but you are probably just not getting the best gas mileage and all the power you should be, because the system is no running efficiently.
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Old 03-27-2010, 01:17 PM   #4 (permalink)
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Ahh great thanks! I can afford the tune(aerospace engineer), i was just debating uprev Dyno tune vs Cobb ap or maybee oasis ? just needed to do the research but it seems i may be running out of time. I just hope i havnt done any damage.


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Stillen CBE, Gen 3's and Berk HFC
Hopefully you know I wasn't taking a jab at your financial status. I was just stating all of the options. Like Dreamer said, you should be fine just get a tune asap...

Thanks, Tony
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Old 03-27-2010, 01:21 PM   #5 (permalink)
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Originally Posted by Nitex View Post
Ahh great thanks! I can afford the tune(aerospace engineer), i was just debating uprev Dyno tune vs Cobb ap or maybee oasis ? just needed to do the research but it seems i may be running out of time. I just hope i havnt done any damage.


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Uprev tunes seem to be really good with some of the G's. Like G37Sam for example. Also, in the User CP>>Edit Signature. You can write out your sig there instead of writing it out in ever post
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Old 03-28-2010, 08:50 AM   #6 (permalink)
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Uprev tunes seem to be really good with some of the G's. Like G37Sam for example. Also, in the User CP>>Edit Signature. You can write out your sig there instead of writing it out in ever post
Yeah ive just been to lazy to update my profile! Thanks for all the info everyone, ill be contacting uprev this week.
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