ECMlink Car Feels Weak (ECMLink Logs Inside)

[Charlieee]

The car has zero boost leaks, no check engine lights, all maintenance up to date, crank at tdc and timing marks aligned.

Only mods i have are intake, and full exhaust.

Boost goes to 15psi and drops down to 12psi due to the stock valve, but the car feels absolutely power less during cruise.

I really have to get on the throttle to build some boost and get going but really isnt much even in boost.

 

[T is for TURBO]

What turbo? injectors? Fill out your damn profile son.


Airflow shows 21lbs/min. sounds about right for a stock dsm.

Stock DSMs are SLOOOOOWWWWWW

If you are stock, why are there fuel adjustments?

 

[Charlieee]

Don't call me son. Be respectful.

And i did forget to mention i'm running evo injectors, but if you looked at the log you would see what size injectors i'm running.

Stock Turbo and like i said on my first post, the car is stock except for the intake and full 3 inch exhaust along with the evo injectors i just mentioned.

Edit: and yes i know these cars are slow but along the lines of doing maintenance this car has no throttle response.

When i first got it it would pull on light throttle now nothing. i have to go wot to actually feel something.

Maintenance i did before car went down hill were, plugs ngk bpr6es .028, autozone wires, fuel filter, and fixed some exhaust leaks, replaced o2 sensor.

Car has horrible gas mileage.

Thanks for the reply tho

 

[T is for TURBO]

That's why suggest you fill out your profile. People tend to forget to list mods in the their threads.

Your CombinedFT is a bit high during your idle log. Get it closer to zero.

You should really be logging boost and AF/R. Do you have a wideband? Never mind, I found it

Finally, your short pull shows us very little. Do a third gear pull from 2,000rpm to redline.

Edit: You said you did a boost leak... How high of a pressure did you test it too? How long did it take to leak down?

 

[snowborder714]

Looks like you have some airflow tuning to do on the WOT pull. Your goal is to get the AFRatioEst to line up with the logged wideband value.

You can also lean it out to 11:1 AFR at WOT to gain a little pep.

Everything else in the log looks good. As stated, the stock turbo is fairly weak.

 

[Charlieee]

That's why suggest you fill out your profile. People tend to list mods in the their threads.

Your CombinedFT is a bit high, you should really be logging boost and AF/R. Do you have a wideband?

Finally, your short pull shows us very little. Do a third gear pull from 2,000rpm to redline.

Yes i understand, and yes sir, I have a aem linwideband streaming my gauge readings.
I think i got it calibrated pretty good.

Yeah i tried fixing my combinedFT but only could fix the idle by setting up my injector dead time. I'm completely new to tuning and just want to get my car to run proper before throwing in all my mods sitting in my closet.

 

[dot45]

Look at my profile for an example of how to fill it out.
It lets folks know at a glance what you have installed.

I'll check your logs out in the morning, not on the computer with ecmlink atm.

 

[T is for TURBO]

Yeah, I see it now. I missed it some how when I looked through the list.

 

[Charlieee]

@snowborder714: Thanks for the wise words. I was actually planning on leaning it out today but i am pending to get a bov that actually holds the 15psi and doesn't drop to apply those fuel settings.

 

[T is for TURBO]

@snowborder714: Thanks for the wise words. I was actually planning on leaning it out today but i am pending to get a bov that actually holds the 15psi and doesn't drop to apply those fuel settings.

Boostleak test to 20psi and you'll know right away if it holds
If it's the stock plastic one, it's leaking.

 

[Charlieee]

I have done a boost leak test up to 20Psi, the only leak i have is thru crankcase pressure but it is all recirculated back into my intake.

Anyone else seeing something suspicious to why i might have low response during cruise and getting bad gas mileage? Im getting about 180-200mpg a tank.

 

[Charlieee]

I was going thru ecmlink setting today and saw the narrowband simulation.. Should i enable it?

And what is the purpose of it?

Will it replace the o2 sensor with my wideband?

I noticed the o2 cycles different when enabled.

 

[snowborder714]

Did you replace the factory front narrowband sensor with your wideband sensor? If not, leave narrowband sim off.

 

[Charlieee]

I have my WB on the down pipe before the flex. and still using the factory o2, and got ya! Thanks Brian.

Any other takers on the logs, i will love to hear what you guys think.

EDIT: I would love to see if anyone can see any possible cause to my horrible gas mileage on the log.

 

[MY1GDSM]

You milage I'm sure is the result of that car being basically Untuned and that fact that you have the (very rich) Stock maps loaded in DA... Driving habits come into play as well if you are boosting at all the car is hitting I'm sure at least close to the 9.5:1 AFR the car shoots for stock.

 

[Charlieee]

Hmm this is interesting, When i first got the car i had traded my 420a for the Talon. The car ran horrible and drove it 80 miles with a missfire and only burned about 1/8th of a tank on a 80 mile drive.

I did maitenance on the car and found the missfire was due to a burnt out plug. Replaced the plug and it ran like new.

Upon light throttle on the freeway the car responded great even with massive exhaust leaks. Now the car feels like a boat with maintenance up to date and no exhaust leaks or boost leaks.

I noticed my car getting the bad gas mileage as soon as i lost all the power.

It runs decent, but not what it use to be or should be.
Its a nice daily minus the bad gas mileage.

 

[Charlieee]

Does anyone have a guide on the ideal numbers you would want to have your timing curving?

 

[clipto]

Damn son looks like you need learn about tuning... Time to bust out the manual good luck. ecmlink101 [ECMTuning - wiki]

P.S. You can get a remote tune from freelancer like my1gdsm for a good price for a good safe wonderful tune. I just dont want you to blow up your car. Be smart dont blow it up. Start from the basic and then go on. Tons of threads and videos how to do things.

 

[Charlieee]

Thanks clipto, and yes i am new to tuning.

Ive seen the ECM page / Demos and it really doesnt explain everything.

All i got from the Videos on WOT tuning is how to reduce knock from changing timing.

I would love to know whats a good timing curve, how much is too much?

Just the main target values people look for when doing a WOT pull.

Coming for a AFC so this is all new to me.

Thanks for the remote tuning reference but :

Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime.

 

[snowborder714]

Too much is when you see knock.

Depends on what fuel and target AFR you're running as to what a good target is.

 

[snowborder714]

Too much is when you see knock.

Depends on what fuel and target AFR you're running as to what a good target is.

 

[Charlieee]

Im starting to think it might be my transmission making it feels slow.

Its a auto, but if i drive it like a manual as in using the gear selector it feels good.

Im guessing its that it doenst down shift upon light load.