running too lean

Honda Civic Forum Classifieds Photo Gallery Member List Calendars Search Contact Us Sponsors
Honda Civic News Forum FAQ Timeslips Civic History Recalls TSBs Register Login

running too lean

Printable Version

Honda Civic Forums >> Your Ride >> Nitrous, Super Chargers, & Turbos >> running too lean

Page: [1]

Message

<< Older Topic Newer Topic >>

running too lean - 5/2/2008 7:27:38 AM

civic_turbo

Posts: 12
Joined: 3/6/2008
Status: offline

I have a honda civic d16y7 turbocharged. The ecu is running on crome, but it is running very lean. It gives out black smoke and gives out a very strong smell of fuel.
somebody please help.

Post #: 1

RE: running too lean - 5/2/2008 7:32:15 AM

danomatic93

Posts: 2423
Joined: 10/9/2006
From: Milwaukee, WI
Status: online

if it smells like fuel, isn't that rich?

black smoke is oil
blue smoke is fuel
white smoke is coolant

_____________________________

Build Thread: http://www.hondacivicforum.com/m_576697/tm.htm
For Sale Thread: http://www.hondacivicforum.com/m_558867/mpage_1/key_/tm.htm#559090
Bob Saget!

(in reply to civic_turbo)

Post #: 2

RE: running too lean - 5/2/2008 8:02:35 AM

civic_turbo

Posts: 12
Joined: 3/6/2008
Status: offline

i have a a/f guage, everytime i switch on the car it shows very lean. After a while when the car warms up the a/f guage goes blank. There is no indication on whether the it is burning lean or rich.
My fuel comsuption is very bad.
what can i do?

(in reply to danomatic93)

Post #: 3

RE: running too lean - 5/2/2008 10:06:54 AM

gsumano

Posts: 1184
Joined: 5/3/2005
Status: offline

quote:

ORIGINAL: civic_turbo

what can i do?

Get a better tuned

_____________________________

Turbo d16y8
gt28r @ 7psi

(in reply to civic_turbo)

Post #: 4

RE: running too lean - 5/2/2008 11:32:45 AM

bcivic

Posts: 81
Joined: 8/12/2007
Status: offline

Sounds like your running rich actually and at idle I believe it should be lean get another tune.

_____________________________

1997 Honda civic dx
engine swap b16a dohc vtec stage 3 clutch fidanza flywheel
k&n intake
dc sports 4-1 header
high flow cat
cat back
lowering springs/ strut tower bar
hasport motor mounts
turbo coming soon hopefully

(in reply to gsumano)

Post #: 5

RE: running too lean - 5/2/2008 3:18:26 PM

SovXietday

Posts: 1906
Joined: 6/29/2006
From: Harleysville, PA
Status: offline

quote:

ORIGINAL: civic_turbo

i have a a/f guage, everytime i switch on the car it shows very lean. After a while when the car warms up the a/f guage goes blank. There is no indication on whether the it is burning lean or rich.
My fuel comsuption is very bad.
what can i do?

So, let me ask you a question. If you have very poor fuel consumption, but using very little fuel... where did all that fuel that you didn't use go?

You should probably learn how to read the gauges that are in your car. They're supposed to be there for a reason, not just to look pretty.

The lower the number, the RICHER the car is. It's an air to fuel ratio. IE - 11.5 on the wideband means 11.5:1 or 11.5 parts air to one part fuel. The more parts of air to fuel there are the less fuel there is IE the leaner you are.

14.7 is considered "stoich", not to be confused with "perfect." For sake of the arguement you can call it good for idle. Lower is just more fuel, higher is lean.

Sounds to me like you're running on a basemap. Why don't you go and get it tuned for your car. And do yourself a favor and don't boost it between then and now while you're at it... unless of course you want to lose that engine too.

---------------------------------------

Dan.

Blue is oil, black is fuel.

_____________________________