Evo 560 Latency Values

[mjannusch]

My 1050s actually ended up being pretty far off from what has been posted for others. I just grab the whole column and increment/decrement it by as much percent as my idle trim is off and usually can get it good in one or 2 adjustments.

Where did you end up with the 1050s? I have the same injectors, and am looking to install them soon to try some E85.

[Chris@Rvengeperformance]

Where did you end up with the 1050s? I have the same injectors, and am looking to install them soon to try some E85.

This is on e85, I think my scaling on pump was ~1071

double checked, pump scaling was 1071

You know what you are doing, but I'd start the scaling about 10% less than that to start out rich.

[mjannusch]

Thank-you, sir. Much appreciated!

[Chris@Rvengeperformance]

Thank-you, sir. Much appreciated!

you are welcome! I'm not going to say they will work for you out of the box, but hopefully its a better place to start than where I did.

[mjannusch]

Hey, anything to reduce the number of flashes - I'm all for it.

[Chris@Rvengeperformance]

Hey, anything to reduce the number of flashes - I'm all for it.

I've never stressed too much about the number of flashes. There's over 100 on mine and I've never had an issue. It even started life as an sl ecu, so the cpu may be originally from 1999.

I did pickup a spare sl ecu just to keep with me if I go road tuning. I don't know if I have just been lucky or the bricked thing is user error most of the time.

[Ray]

I flashed the higher latency values for the injectors today and restored the stock VE table.

Within 40 minutes of driving my trims were almost perfect!

The higher latency values are definitely the way to go both even with the newer injector model.

I've been trying to get my trims within spec for days using the shorter latency values so this was a much welcome surprise.

Great to hear that it worked out better for you. Let us hope that it is this higher latency correction that is the best for these 560cc injectors. I'm still bogging down low rpms at load.

[Unlogic]

I'm still bogging down low rpms at load.

I'm actually seeing the same thing now. Right around 200-300 hz of airflow the car hesitates and bogs. I'm gonna do a pressure test tomorrow and if I don't find any leaks I'll try reverting to my stock MAF and see if it helps.

[Chris@Rvengeperformance]

You probably should lower the tps closed loop delta tps percents to start with. The stock map waits too long to go to open loop.
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[Ray]

You probably should lower the tps closed loop delta tps percents to start with. The stock map waits too long to go to open loop.
Sent from my RM-845_nam_vzw_100 using Tapatalk

Originally flashed 560cc with low latency really bogging low and mid rpm ranges getting cel P0300 random cylinder misfires and running too lean 15-17 afr.
Then flashed 513cc with high latency no cels running 13-15 afr but low rpm load bogging
Today flashed 450cc with high latency ran way better at low and midrange rpms with just a very minor hint of bogging got cel P0170 and P0173 Fuel Trim Bank 1 and 2?
All trims ended up at 150 each
Car has started and idled well within reasonable limits in all the above conditions. BTW may not be relevant but the speedometer goes to 20 mph and then drops to zero and stays there. Do these functions depend on the speed sensor?

Forest, Jim, Alan, Greg or anyone that can help me figure this out. It made no sense that flashing 450cc runs better on 560cc injectors.

At least now I can drive the car to the store and back to feed myself lol

Forest, the reason I used your quote is that it is an example of some of the things I know nothing about or how to change them. Obviously, you guys know way more than I do.

I am continuing to educate myself in these matters, thanks for your opinions.