11p transmission 4l60e holding gears

General Tuning Questions And Discussions
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vp304
Posts: 451
Joined: Wed May 19, 2010 2:21 pm

Re: 11p transmission 4l60e holding gears

Post by vp304 »

Thanks immortality
'quipt4it
Posts: 675
Joined: Sun Oct 28, 2012 12:57 pm

Re: 11p transmission 4l60e holding gears

Post by 'quipt4it »

Just noticed that 2-1 at 0 throttle is greater than the 1-2 at 0 throttle.
Nudge it down below that 13.69 figure.
vp304
Posts: 451
Joined: Wed May 19, 2010 2:21 pm

Re: 11p transmission 4l60e holding gears

Post by vp304 »

Should be ok if i flip it around ie 1-2 i put at 15kph
and down change 2-1 at 13kph?
just when coasting slow into a stop sign or give way changing back to 1st gear at 13kph gives you a little bit more go than laboring away in 2nd gear ?
'quipt4it
Posts: 675
Joined: Sun Oct 28, 2012 12:57 pm

Re: 11p transmission 4l60e holding gears

Post by 'quipt4it »

Knock yourself out :lol:
The auto will thank you for it!
vp304
Posts: 451
Joined: Wed May 19, 2010 2:21 pm

Re: 11p transmission 4l60e holding gears

Post by vp304 »

hehe
thanks for the help mate :)
vp304
Posts: 451
Joined: Wed May 19, 2010 2:21 pm

Re: 11p transmission 4l60e holding gears

Post by vp304 »

Im back with more questions hehe.
So my idle and cruise are pretty good around 14.5 af ratio or so give or take a little.

I hooked my wideband up of a spare battery this morning and fired up the car cause i had a feeling it was a little rich when cold. I know most cars need 20% more fuel at idle. When car is stone cold to aim for around 12.5 afr on petrol and taper off to say 14.5 7 at 50 60 deg c coolant temp.

The ute fired straight up no worries around 12.5 af ratio tho when i give it a lite stab of the throttle it bogs down mega rich to around 11.0 10 af ratio stumbles and comes back up. Stalled once on me from this this morning.
Is there some kind of transient throttle giving 2 much fuel on that initial stab of the throttle setting when cold somewere.

I have a small mazda 4 cylinder engine i tuned for myself couple of years ago and i know the cold starts need a lot of work to get right. Mine was a aftermarket ecu so needed more work again to get decent.

As the engine started to warm up say after the 1st min of running from cold i could see the afr starting to lean off up to around 13.5 13.8 afr so i know that part of the tune was doing its job ok
immortality
Posts: 3416
Joined: Thu Apr 09, 2009 12:31 pm
cars: VH, VN, VS, VX

Re: 11p transmission 4l60e holding gears

Post by immortality »

Check out the Transient - Acceleration Enrichment - Transient AE temperature factor Vs Coolant temp table.
vp304
Posts: 451
Joined: Wed May 19, 2010 2:21 pm

Re: 11p transmission 4l60e holding gears

Post by vp304 »

See pic as the injectors are nearly double the size im guessing this is the data for the standard 19lb at 3bar injectors
super 6 36lb at 3.5 bar
if i take subtract say 45% of all these values in the table should that put me closer to were i should be ?
I can wideband again from stone cold and see how it is
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'quipt4it
Posts: 675
Joined: Sun Oct 28, 2012 12:57 pm

Re: 11p transmission 4l60e holding gears

Post by 'quipt4it »

Have you adjusted the Run A/F parameter: Displ/injector flow rate
vp304
Posts: 451
Joined: Wed May 19, 2010 2:21 pm

Re: 11p transmission 4l60e holding gears

Post by vp304 »

Yes I think of top of my head it's set around. . 10
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