Intake, Header, HFC, CBE = Too Lean?

Nitex · 03-26-2010, 05:43 PM

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.

___________________________
Stillen CBE, Gen'3s and Berk HFC

F.I. Inc. · 03-26-2010, 05:54 PM

Quote:

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, 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.

___________________________
Stillen CBE, Gen'3s and Berk HFC

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

Nitex · 03-27-2010, 10:14 AM

Quote:

Originally Posted by F.I. Inc.

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.

____________________________
Stillen CBE, Gen 3's and Berk HFC

theDreamer · 03-27-2010, 11:38 AM

Quote:

Originally Posted by Nitex

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.

____________________________
Stillen CBE, Gen 3's and Berk HFC

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.

F.I. Inc. · 03-27-2010, 01:17 PM

Quote:

Originally Posted by Nitex

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.

____________________________
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

nogoodname · 03-27-2010, 01:21 PM

Quote:

Originally Posted by Nitex

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.

____________________________
Stillen CBE, Gen 3's and Berk HFC

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

Nitex · 03-28-2010, 08:50 AM

Quote:

Originally Posted by nogoodname

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.

03-26-2010, 05:43 PM	#1 (permalink)
Nitex Track Member Join Date: Jan 2010 Location: Seattle Posts: 848 Drives: '13 GTI Stage 2 UNI Rep Power: 17	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. ___________________________ Stillen CBE, Gen'3s and Berk HFC Last edited by Nitex; 03-26-2010 at 05:47 PM.

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