Air/Fuel way off need help

Reply Subscribe

Thread Tools

Search this Thread

Sep 9, 2007 | 11:30 PM

Fifedogg

Thread Starter

11 Second Club

iTrader: (15)

Joined: Mar 2007

Posts: 772

Likes: 0

From: So Cal

Air/Fuel way off need help

I got my car dyno'ed yesterday and here is the sheet. Something is deff. wrong here. The guy had the meter in my tailpipe. Is this the reason it is off. I called my tuner and he said it shouldn't be that way. Any help will be appreciated. My car doesn't have any ping's or anything like that. It seems to be running great.

Sep 10, 2007 | 01:29 AM

gametech

TECH Veteran

iTrader: (1)

Joined: Sep 2004

Posts: 4,915

Likes: 908

From: Stockbridge GA

Don't worry too much about the A/F reading. It is OBVIOUSLY wrong. If your A/F was that bad, your motor would have probably blown up on the dyno. In the unlikely event that you didn't melt a piston, you wouldn't have dynoed over 300rwhp with that air/fuel ratio.

Sep 10, 2007 | 07:58 PM

sixvi6-camaro

TECH Fanatic

iTrader: (9)

Joined: Dec 2004

Posts: 1,693

Likes: 0

From: Schaumburg, IL

Quote:

Originally Posted by gametech

I agree.. tailpipe widebands are prone to reading the air outside, or getting false reading from small exhaust leaks..

Edit... your car has cats! a tailpipe wideband will not read correctly regardless. Widebands need to be installed before the cats to work correctly.