323's Build

323

Modifier
5,252
3,682
Chicago
Vehicle Model
Civic Si
Body Style
Sedan

Nix

Jötunn Moderator
10,765
8,162
Lew-vul, KY
Body Style
It's A Fast Pig!
This....... build....... is ....... taking....... too...... long.......

buymorepartsnownownownownow.....
 

squiggy

Cartographer
Super Mod
11,183
6,654
Michiana
Vehicle Model
'12 Civic Si
Body Style
DBP II Coupe
Bought my RBC kit!
JDX 70mm TB
RBC ported to match
And 3.5" SRI
Also purchased p2r's thermal gasket and stainless steel clutch line.
And got some Moog endlinks to bring it all together

Which gasket? TB or IM? Also, make sure you read up on grounding if using the IM gasket...maybe TB gasket too.
 

Dar-Dar

Mordorator
19,329
9,900
North NJ
Vehicle Model
Civic Si
Body Style
Fiji Blue Pearl Coupe Coolest Member Since: May 15, 2011
Too lean means that you're not getting enough fuel in the combustion chamber. I don't think it would be your dirty air filter since the ecu will still compensate the a/f regardless of a semi-clogged intake.
 

squiggy

Cartographer
Super Mod
11,183
6,654
Michiana
Vehicle Model
'12 Civic Si
Body Style
DBP II Coupe
Help?

Got this CEL on my way home tonight, just driving normally.
The first thing I thought of is I haven't cleaned my intake filter in almost a year, could it be as simple as that?
Or any other ideas?

Bad injector?
 

Dar-Dar

Mordorator
19,329
9,900
North NJ
Vehicle Model
Civic Si
Body Style
Fiji Blue Pearl Coupe Coolest Member Since: May 15, 2011
Possible solutions.
A lot of times, cleaning the MAF sensor and finding/fixing vacuum leaks fix the problem. If you're on a tight budget, start there, but that may not be the fix for certain. So, possible solutions include:
-Clean the MAF sensor. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
-Inspect all vacuum and PCV hoses, replace/repair as required
-Inspect all hoses and connections in the air intake system
-Inspect and/or test the intake manifold gaskets for leakage
-Check for a dirty fuel filter and proper fuel pressure Ideally you'll want to monitor short and long term fuel trims using an advanced scan tool
-If you have access, you may want to run a smoke test

Read more at: http://www.obd-codes.com/p0171
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