Question about oem ECU

Originally Posted by Black kNight I wanted to ask why most cars A/F ration from factory comes rich ??? and can someone help with more Info about A/F ratio so

		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Tuning
Question about oem ECU

LinkBack

Thread Tools

Display Modes

07-10-2009, 03:24 PM

#9 (permalink)

K20A2_S

Base Member

Join Date: Mar 2009

Location: Houston

Posts: 67

Drives: 04 RSX

Rep Power: 273

Quote:

Originally Posted by Black kNight

I wanted to ask
why most cars A/F ration from factory comes rich ???
and can someone help with more Info about A/F ratio so I can understand

Thanks

the main reason is b/c they don't know where teh car is going, your a/f ratios will vary greatly running in 100 degree houston weather, than 30 degree Chicago weather........

When the air is that dense in the cold you need more fuel to compensate.........so I'm guessing they "tune" the stock ECU to handle those type of A/F rations b/c it's better to run rich then lean like most have mentioned.....

Bookmarks

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Trackbacks are On Pingbacks are On Refbacks are On Forum Rules

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
General question???	Xavier Raymond	Nissan 370Z General Discussions	7	03-09-2009 04:08 AM
7AT Question	sbkim	Engine & Drivetrain	5	03-06-2009 02:22 PM
Question Ordering a Z	Devil Z	Nissan 370Z Pricing / Ordering Discussions	10	02-13-2009 08:35 AM
Question about red on 370z	sbkim	Nissan 370Z Photos / Spyshots / Video / Media Gallery	8	01-27-2009 07:00 PM
Dumb question...	molamann	Audio & Video	3	01-12-2009 05:07 PM

All times are GMT -5. The time now is 08:13 AM.