Hondata

Yep, I am having the same problem...

I JUST was messing with the CRX and noticed AF 12s to 11s...
I swapped to my other ecu (hondataed as well) loaded the exact same tune on the new ecu and AF ratio is 14.2 now (consistently).

but i ALSO noticed I have no control of the IAC Duty cycle control bar ...

I was just trying to understand and I have a question...

On hondata display, is there any way to display the AF ratio as in 14.7/1 instead of the Lamba voltage?

I have a hard time understanding the Lamba voltage conversion (and remembering it)

Also what is the exact conversion for an AEM wideband ...

I just noticed that the scroll wheel on the mouse doesn't work (parameters window)
Just a suggestion....

Thanks, the improvement are amazing!

Sweet!

Problem fixed and it was the grounds you mentioned!

Woohooo....

So bad relay and bad grounds were the culprits...

Datalog and tune all tomorrow!!

I am not even mad because I have a huge gain of knowledge after this one!

Thanks everyone again for the help!

:post closed:

I have a couple of question...

what do both those values mean and what do the changes do?

--Scale TPS
--overrun cutoff TPS

I am trying to understand everything and these I do not...

Thanks again!

PS: Your answers mean the world, really do appreciate everything!

I was curious on the actual "tuning" side of s300 (haven't tried just curious)

When I datalog/record a run, I can go back in and watch the run...

Watching the AF ratio during the run, can i...find low area and move the fuel in those columns up then load that to the ecu at a later date?

I don't ...

just swapped the new main relay in and now it gets fuel and spark...tries to start but thats it, just tries....

Both sensors are still throwing codes (6 and 10)...
just tried a new air intake temp sensor and no luck...

so the sensor issue has to be a ground....

I think once I figure out the ...

Thanks for the replies guys...

yes, it was been swapped to obd1 from obd0...but that was 2 years ago (ran 3 weeks ago until my oil pump went out)

So i tore the whole motor down cleaned top to bottom put in a new oil pump, with all bottom end bearings....

swapped from t25 turbo to a t3t4...brand ...

I am trying a new dizzy tomorrow morning...(cam angle sensor (spark/fuel))

I need help! cant figure out why it is throwing the water temp and air intake temp sensor codes...

Is there anyway to electrically test the plugs/sensors??

I am getting no electrical readings on either of those sensor ...

No spark, no fuel...
Throwing codes 6 (water temp sensor) and 10 (intake air temp sensor)

Install new sensors still no spark no fuel throwing 6 and 10...

Tried 2 different ecus - throws both codes 6 and 10

Help!? Any suggestions would be fanatic!

That is what I was thinking, I just needed to confirm that there wasn't an idea A/F ratio to cause more detention than others.

Thanks once again!

Awesome news.

...that is what I was thinking that it was backwards

roughly run 14.7 at idle and push a little rich to 12.5 during boost? (safety First)??

Is there an optimal point where detention occurs always?

Thank you a bunch.

Good thread too, I thank everyone for that too...only facts

14.7 was the number I was trying to confirm.

When you say lower; as in 13.5<14.7 = leaner and 15.2>14.7 = richer?

I have an AEM wideband O2 with gauge; running s300.

Thanks for the information!

Ohh ya, here is my car specs (i might of forgot somethings but ya...)
Car specs:

d16a6 block
d15b ...

that does help the understanding...Thank You

What is the ideal A/F ratio to completely burn 91 octane fuel?

I am curious on the actual ideal fuel air ratio for NA motors and turbo motors.

Should there be a "difference" in ideal A/F ratios between the two?
...I hear there is a difference but not from experts like you guys...

I am trying to understand what idea is and if there is a difference on the two ...