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ECMlink 2nd and 3rd gear pull

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Galipso

Supporting Member
236
37
Aug 23, 2011
Tampa, Florida
1). Any boost, vac, or exhaust leaks?
Tested Good as far as i can tell

2). Verified mechanical timing?
Good


3). Verified base timing?
Good


4). Ignition system
COP or Stock Coil: Stock
Wire brand and Age: NGK 5 years old, 500 miles
Spark Plug brand, type and Gap: NGK plugs, 5 years old 500 miles

5). Motor health (Compression Test)
N/A

6). Performed basic throttle body adjustments?
Idle Switch: Yes
Throttle Cable: Yes
TPS: Yes
BISS: Yes

7). Compression ratio
2.0 1G bottom end, 2G top end motor


8). Any known bad sensors or brittle wiring?
oil pressure sensor wiring, mechanical ran


9). Any DTC/CEL codes?
None


10). Electrical system
Car off (not running): 13.9V
Car running: 13.7V

11). Base fuel pressure and injector values
Base Fuel Pressure: 53psi
Injector Size (cc/min): 950cc

12). Properly calibrated and configured wideband sensor
Sensor Brand: LC1 Wideband
Calibration Date: Apr 2016

13). Type of fuel
Type: 93

14). Watched ECMlink how-to videos? yes

I've done all the tuning on the car from videos and im looking for some experienced users to give some advice. I've attached a clip of 2nd and 3rd gear pull on the freeway. One thing i notice is that as soon as i boost i run lean (AFR around 9). Do i adjust the sliders on the MAF Comp tab or the Fuel tab?
 

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On a side note: i blew my tire shortly after this log was taken. It was old, no tread... i ran the risk and lost
 

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I don't have the ability to read logs however I can tell you 9 is rich not lean. Super rich, most likely fouled your plugs and oil rich.

You're right, my bad. I'm running rich under boost.

I'd still like someone to take a look at my ECMLink log and discuss how to fix this
 
It's kind of depressing nobody really replies to these much anymore, let me grab my laptop and I'll take a look, by no means am I a tuning expert but I might be able to spot something that's out of line, some feedback is better then none right?
 
One thing i notice is that as soon as i boost i run lean (AFR around 9). Do i adjust the sliders on the MAF Comp tab or the Fuel tab?

Using ECMlink you want to adjust your desired AFR through the Direct access tables, maf comp is for dialing in your WB factor.

I'd bump everything that is lower the a 10.5 TO 10.5 or a bit leaner, 9.5 is just too rich. I'd attach a log with the changes but I'm not on the laptop anymore. Why is your airflow smoothing disabled for SD operation? are you using SD or a MAF?
 
Also your TPS is a bit off, I would adjust that as well. Ideally you don't want to have to rely on the TPS adjust tool if you can get it within spec on your own.

You see how everything got leaned out a little bit at the higher load levels, I'm aiming for an 11.1 ratio on my own setup but ultimately that is your choice, do some research to see about what you'd expect your AFRs to be at WOT.
 

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Also your TPS is a bit off, I would adjust that as well. Ideally you don't want to have to rely on the TPS adjust tool if you can get it within spec on your own.

Why not use the TPS adjust tool?

Also, to the OP i am in your same boat and will be slowly working my way leaner at WOT.
 
Because that' what was always recommended to me by one of the wisemen, and I trust his opinion, I've never questioned it to be honest.

IIRC the only reason your DA tables are calling for that rich is just to keep everything safe in the event of a hose blowing off or bad maintenance, since almost nobody is using rubber hoses anymore and we all do boost leak tests to confirm that our system I working properly it becomes wasteful to be running that rich.
 
The only real issue I see is with your ECU config is your TPS. The ECMLink TPS adjustment feature has become a pet peeve of mine. Nearly every log I look at, somebody is using it incorrectly. I strongly believe if you need to adjust the TPS offset or TPS scale more than a value of 2 on either scale, you need to go back and make a manual adjustment to your TPS. You are at a -3 offset, on a 104% scale. That tells me the natural sweep of your TPS sensor is out of wack, and you need to go manually adjust it. On my personal cars, I'm happy when this feature is either disabled, or I'm at 0 and 100%...But that's just me.

One thing i notice is that as soon as i boost i run lean (AFR around 9). Do i adjust the sliders on the MAF Comp tab or the Fuel tab?

9.0:1 AFR would actually be incredibly rich, not lean. The reason you're running so rich is because your Direct access OpenLoopMinOct table is set to 9.5:1 AFR. On 93 octane, I would shoot for around 11.0:1 AFR. You need to go into your OpenLoopMinOct table and lean it out.

It appears your WBO2 is lining up nicely with your AFRatioEst, but I think what's actually happening is your WB reading is maxed out rich. I'd bet when you lean out the fuel table you'll need to do quite a bit of work to the MAF.

Also, is there a reason you're running 53 psi of fuel pressure?

My advice would be to lean your DA fuel table out to 11.0:1 and do another 3rd gear pull. From there you can make more adjustments.

Also, fix your TPS, and list the actual part number for the spark plug you're running. There are literally thousands of NGK plugs, so simply saying you're running an NGK plug is completely useless information.
 
The only real issue I see is with your ECU config is your TPS. The ECMLink TPS adjustment feature has become a pet peeve of mine. Nearly every log I look at, somebody is using it incorrectly. I strongly believe if you need to adjust the TPS offset or TPS scale more than a value of 2 on either scale, you need to go back and make a manual adjustment to your TPS. You are at a -3 offset, on a 104% scale. That tells me the natural sweep of your TPS sensor is out of wack, and you need to go manually adjust it. On my personal cars, I'm happy when this feature is either disabled, or I'm at 0 and 100%...But that's just me.

I've done my TPS adjustment as one of the first things i learned how to do with ECMLink but i havnt thought to double check it. My throttle cable is an aftermarket one since i removed the cruise control and its possible that it needs another manual adjustment before i do TPS adjust again so thank you for that advice.

9.0:1 AFR would actually be incredibly rich, not lean. Oneslowwdsm correct me on this. The reason you're running so rich is because your Direct access OpenLoopMinOct table is set to 9.5:1 AFR. On 93 octane, I would shoot for around 11.0:1 AFR. You need to go into your OpenLoopMinOct table and lean it out.

This is the advice i was looking for. I'll do this over the holiday weekend and repost a new log afterwards.


It appears your WBO2 is lining up nicely with your AFRatioEst, but I think what's actually happening is your WB reading is maxed out rich. I'd bet when you lean out the fuel table you'll need to do quite a bit of work to the MAF.

Also, is there a reason you're running 53 psi of fuel pressure?

i posted a correction after this, i'm at 37 bfp. 53 is what came to mind but i remembered incorrectly.


My advice would be to lean your DA fuel table out to 11.0:1 and do another 3rd gear pull. From there you can make more adjustments.

Also, fix your TPS, and list the actual part number for the spark plug you're running. There are literally thousands of NGK plugs, so simply saying you're running an NGK plug is completely useless information.

i dont have a problem pulling them out and checking, but im clueless as to how this is important information. i did gap them at 28 but other than that, the only reason i would think to check them is if im getting a misfire, which im not.

Using ECMlink you want to adjust your desired AFR through the Direct access tables, maf comp is for dialing in your WB factor.

I'd bump everything that is lower the a 10.5 TO 10.5 or a bit leaner, 9.5 is just too rich. I'd attach a log with the changes but I'm not on the laptop anymore. Why is your airflow smoothing disabled for SD operation? are you using SD or a MAF?
im using the stock MAF currently

Thank you 19gsx91, GST with PSI, and oneslowwdsm. I'll come back over the weekend
 
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