NAVY

I went to the dyno test my car brought 345 on whele the suid the AFR raion is low 13.8 so how can I program it whith the EFI LIVE do i program the ( Injector flow compensation based on fuel pump voltage
voltage or the injectors flow rate ) and how much shouid i add on the ( Injector flow compensation based on fuel pump voltage
voltage or the injectors flow rate ) ?? they told me to add 1% that right or wrong .

what can i do???



thank you
navy

SSpdDmon

iTrader: (10)

If you want to bandaid the problem, you can manipulate the Inj. Flow Rate table to dump more fuel in and tweak WOT with the PE table. Most people on here will disagree with that method and say tune the VE, PE and MAF tables to get your fueling right....why "fool" the pcm into thinking the injectors flow less fuel than they really do to get them to dump more fuel in?

brad8266

iTrader: (23)

The BEST IMO way to do it is to set first dial in the VE table and then recalibrate the MAF table, this will ensure that the sensors are reporting the actual amount of air entering the engine. Then you can set the PE table to whatever AFR you wish to run. The idea is to tune VE and MAF to report accurately so that if you do ever want to change AFR it is as simple as just doing the simple math and plugging it into the PE table. Check out the thread i started a few days ago, think it was called "Why so lean at WOT" There was some good info posted there.

jimmyblue

iTrader: (11)

You need to step back and figure out the source
of the error. Garbage in, garbage out, and just
stirring it doesn't usually help.

Not to mention the untrustworthiness of the
tailpipe wideband and the unlikeliness of the
sort of leanness we're talking on a stockish (?)
car.

NAVY

ok now im add 1% injectors flow rate that right .

SSpdDmon

iTrader: (10)

If you have a WBO2, you'll see how changing that table will affect the tune. However, I would guess that you would want to decrease that table to say that the injectors flow less than they really do so that the pulse width stays open longer (which adds fuel). Saying they flow more should decrease the pulse width and take fuel away. Please tell me that you're using a wideband before attempting this....

oztrack

Changing the IFR will push the airflow to a different level and change your timing at all load points. Best to just change the VE table and PE table to get the afrs you want.

NAVY

i dont have WBO2 so how to can calculat afr ( dyno ) .
i changing the timing i copy the Spark high-Octane Table for Spark Low-Octane Table ,Knock Fast Attack Gain (2) and delete the O2 sensors .