ECMlink Closed loop idle..need help

[nice97civic]

For whatever reason, the car is HORRIBLE in closed loop. Once the car switches over to open loop, the car is normal. I must be missing something pretty simple but I'm not sure what it is since the ecu should be making its own adjustments in closed loop, correct?

Mods are, 20g, evo 560cc, small cam, intake, exhaust, walbro 190.

 

[92AWDHX40]

How to fix your idle surge problem. | DSMtuners

Dsm Idle Control | Six Sigma Dyno Tuning | United States (sixsigmatuning.com)

try these

 

[nice97civic]

I should clarify. The idle itself is not a problem. The issue is that the car is not driveable until it has been idling for about two minutes.

 

[92AWDHX40]

Oh i saw idle, so its not idle issue so thats something else no related to have running for a while. So i would call it driveability issue, or not able to drive. With that being said it could be a host of things, what have you done? Have done anything as far as looking at everything?

 

[nice97civic]

Yea I can change the title, I just wasn't sure how to describe it. There are no boost/vacuum leaks, etc. The car drives absolutely flawlessly once it idles for a few minutes. One thing to note, this only started after I switched from black box ecu running ecuflash to my eprom ecu with ecmlink.

 

[92AWDHX40]

Ah well you changed the ecu, so the issue may be with ecu changes.

 

[nice97civic]

Very possible. Wondering why that would be though. ECMLink is setup for my injector size, AFR table is solid and once the car has time to "think", it runs just fine. Not sure what the lag between starting the car and being able to drive it normally is

 

[92AWDHX40]

Could be the dsm gremlins that face us, it happens to us one time or another, thats when we have to dig deeper for our aging platforms.

 

[nice97civic]

After closer inspection it’s an issue while the car is in closed loop. Once the car switches to open loop, things are normal

 

[AWD-Tony]

Post a log

 

[nice97civic]

as soon as i go get my other computer, will do!

 

[nice97civic]

Here is a short log of closed loop. If more is needed I have them.

 

[nice97civic]

before you roast my fuel trims. I'm aware they're way off however when I adjust them, the car dies so something else is off elsewhere I assume but right now I don't know where.

 

[AWD-Tony]

I’ll take a look tomorrow but you’ve most likely answered your own question

 

[AWD-Tony]

Going to need more info than that. Stock MAF? No afpr?

1. Fill out your profile page with list of ALL mods. For now is this all? 20g, evo 560cc, small cam, intake, exhaust, walbro 190
2. Capture & Log ISC position, Battery, WB Factor, ecuboost
3. Zero out your fuel slider
4. Uncheck both boxes in MAF Clamp
5. Under Dash - set your knock cel to 2*
6. Under ECU input - MAP should be undefined or MDP. I'm not sure about this since it's a 2g but I'd say undefined
7. Grab a cruise & idle log after car gets up to temp.

Do you have ecmlink pw & login? I highly recommend watching their demo videos. You can tune idle and cruise on your own. Then tune WOT. It’s a maf car so it shouldn’t take you long before it’s running right

 

[nice97civic]

Sorry I just sent a log of the closed loop nonsense . I'll throw up another cruise log soon. I'll go change those parameters as well. I do have an ecmlink login.

I'll fill out my profile with mods .

 

[nice97civic]

heres a quick log from today. keep in mind I forced open loop for this cruise and then turned that off so you'll see it switch to closed loop and go stark lean towards the end. I attached another one from 2.14 that has longer closed loop duration.

Log today has fuel sliders at 0, maf clamp unchecked, etc as noted above

 

[AWD-Tony]

You have to log and capture wbFactor. Since we don't have the same WB, I can't see your AFR's. You haven't zero'd your fuel slider, and you changed the global to Zero, it should be -18%. Load this, let it get up to temp 180* and start logging. I noticed your front O2 isn't moving but this could be from just needing to be tuned. Do you still have stock egr set up?

 

[nice97civic]

I don't believe there is a blockoff on there, but i'll have to double check. Forgive me, mods done by previous owner and he didn't run it very long in it's current state. Yay.

 

[AWD-Tony]

It’s running MAF correct?

 

[nice97civic]

Where should I see wbFactor? I don't see it as a value I can capture.

MAF is correct

 

[AWD-Tony]

Where should I see wbFactor? I don't see it as a value I can capture.

MAF is correct

It should be there.
Go to Edit
Captured value - if you don’t see it, it could already be there. If so, go to Displayed Value.

 

[nice97civic]

Sorry there are so many here. The first four were just me checking temps but you can see in closed loop its a train wreck then once it switches to open loop things mellow out.

Maybe its called OldAFRatioEst now?

 

[nice97civic]

See if this one is better

 

[AWD-Tony]

Your front O2 isn't moving. I suspect that's why it runs like crap.
Move the 0 & 50hz sliders under MAF comp until the airflowperrev is .25ish. Once that is done, look at your combinedFT. If it's positive, add deadtime to get combinedFT close to zero. Post a log when that's done.