help with wideband readings... - SRT Forums

immyz · 04-11-2006, 04:13 PM

well first off ill try to get the most important things out in the open
50trim, 750's, return line, fuel pump, return like set at 44psi

right now i have a huge exhaust leak at the silly flex dumb tube, so im only running 13psi.

at 13psi, my a/f reads 12.2, or high 12's...

at idle its 14.7-15.00

can somone help me out here, it's the zeitronix wideband

immyz · 04-11-2006, 04:26 PM

bump, for some answers

Klop · 04-11-2006, 07:42 PM

Is the exhaust leak before the O2 sensor? If so you will need to fix that for sure. It will cause false readings.

hydrohopper · 04-12-2006, 07:27 AM

A/F at idle is fine. However at WOT you really should lower boost or richen thing up. What is your A/F towards redline?

a7594217 · 04-12-2006, 09:07 PM

Fix your exhaust leak asap and recheck your af's. You exhaust leak will suck in a little air which leans up your af's. Even if the exhuast leak it slightly behind the sensor it may still lean it up a little.

JDM_SRT-4 · 04-12-2006, 09:25 PM

Quote: Originally Posted by hydrohopper

A/F at idle is fine. However at WOT you really should lower boost or richen thing up. What is your A/F towards redline?

12:1 isnt that bad??

You guys much be used to PIG rich horriblely rich tunes or something... 12:1 on a boosted car is VERY ideal

My car is daily driven for over a year on 12:1 AFR's with 450whp on pump gas... I love makeing great power along with 27-30mpg... i dunno about you guys tho..

fix your exhaust leaks, but from what i see... nothing is that wrong w/ ur AFRs that i see.

jeremy6 · 04-12-2006, 09:55 PM

Sounds kinda lean for having 750's a return line and a pump on only 13PSI??

hydrohopper · 04-14-2006, 06:19 PM

Quote: Originally Posted by JDM_SRT-4

Quote: Originally Posted by hydrohopper

A/F at idle is fine. However at WOT you really should lower boost or richen thing up. What is your A/F towards redline?

12:1 isnt that bad??

You guys much be used to PIG rich horriblely rich tunes or something... 12:1 on a boosted car is VERY ideal

My car is daily driven for over a year on 12:1 AFR's with 450whp on pump gas... I love makeing great power along with 27-30mpg... i dunno about you guys tho..

fix your exhaust leaks, but from what i see... nothing is that wrong w/ ur AFRs that i see.

Yeah, I do agree but her also mentioned that 12.2 or higher. So I'm assuming that he could be saying 12.5/12.6/12.7/etc. On mine, the first inital punch is 12.2 as RPM rise it richens up to about 11.5