ECMlink new to sd values in gray ?

[donniegst]

1). Any boost, vac, or exhaust leaks?
yes to 24 psi

2). Verified mechanical timing?
yes
3). Verified base timing?
yes

4). Ignition system
stock 1g
5). Motor health (Compression Test)
Cylinder 1:
Cylinder 2:
Cylinder 3:
Cylinder 4:

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

7). Compression ratio
stock

8). Any known bad sensors or brittle wiring?

9). Any DTC/CEL codes?

10). Electrical system
Car off (not running):
Car running:

11). Base fuel pressure and injector values
Base Fuel Pressure:
Injector Size (cc/min):1000cc rochesters (940cc according to ecm wiki deadtime set to 450)

12). Properly calibrated and configured wideband sensor
Sensor Brand: aem
Calibration Date: sept-2016

13). Type of fuel
Type: pump 93


14). Watched ECMlink how-to videos?
yes









ok so i just switched to sd the car ran great but after switching everything over i knowtisted that some of my captured values arnt showing up there in gray witch is weird

i bought my sd from ecmlink with the cable and everything just so u know what sensors i have any input or help would be great i think im the only one in my general area that switch to sd thanks heres my log did a few throttle blips to

 

[donniegst]

fixed gray issue for got to say car has bc 272 cams heres a new log any input would be great

 

[rabenne]

Looks like its time to dial in your idle settings. Have you set the base idle speed?

this consists of clicking on the boxes to ground timing and diag via the eccmlink software, then setting the BISS on the throttle body to idle the engine at 750rpm, then unchecking the boxes?

Your idle is set to 750 from the drop down box and you are idling much higher. This along with the ISCposition being very low or 0 in some places says that too much air is likely entering the engine at idle. The ECU is telling your ISC to close the valve and let less in. This could just be due to improperly set BISS. So, fi you didnt set your base idle speed yet, do that and put up another log afterwards.

Otherwise you might have some gremlins to work out before you go too far.

 

[rabenne]

Also, I recommend adding battery voltage to your captured values, it can be handy to have in the logs.

 

[donniegst]

ok thanks for the tim il add that

 

[rabenne]

No prob, but did you do the base idle speed setup procedure yet?

 

[donniegst]

im new to the whole tuning thing all i did was set the ecu pins and thats it didnt want to take the chance of messig it up

 

[Jacolu3]

Check out this link. It should help you set things up

http://www.dsmtuners.com/threads/how-to-tune-a-1g-v3-sd-ecmlink-with-no-maf.395564/

 

[donniegst]

that says 1g? dose it matter that im a 2g ?

 

[Jacolu3]

no it applies to both 1g and 2g. I used it to setup my SD on my 2g. Couldnt have done it without it.

 

[1990TSIAWDTALON]

Donnie, does the wideband show up on your log? I have you 3rd log up and I dont see the wideband on the log. Your STFT's show that you need to play with the deadtime up or down to get it close to zero.

One thing Donnie, don't be scared. My car didn't even run so I had to play with it just to get it started now it's a beast. If something gets goofy you can just go back to a previous logs values.

I also don't see the IAT anywhere. Are you using one with your SD setup? It will run without one but I don't see it on your log either.

 

[boostdawd]

Make sure u go into ECU inputs and select the lock baro and temp checkbox below ECU input locks. Your idle looks good. Time to start messing with the tune if you dialed in your global fuel already.

If your injector deadtime has been set, your AirflowperRev is a bit high. Goal is 0.25-0.26gm/rev.
Try increasing or decreasing the deadtime. Then u may want to adjust your VE tabe. Read up through the info provided. It will guide you in the right direction.

 

[1990TSIAWDTALON]

He will probably have a hard time getting to that target with his cams. I know mine isn't close but it has alot of overlap. I don't worry too much about it if my fuel trims are working out but now that is just me and my shared experiences.

 

[rabenne]

Dont be scared. Watch the demo videos on ecmlink site and give it a shot.

 

[boostdawd]

Your right. I have 272s and had a hard time getting it to go that low. I had to put my ve tables around high 30's low 40's.

 

[1990TSIAWDTALON]

Yes that is where mine are too. IIRC its 35-36. I just don't get caught up terribly on a modded motor, its gonna be different but if all is in order then I'm ok and the car runs great...and at just shy of 40lbs of boost now.

 

[boostdawd]

Oh man that's awesome. I haven't been able to drive my car as much as I'd like due to the carrier bearings being shot. Thing makes crazy thumping noise when I'm driving. Luckily I sold my R1 for some funds to fix this and get my hx35 build completed.

 

[donniegst]

Donnie, does the wideband show up on your log? I have you 3rd log up and I dont see the wideband on the log. Your STFT's show that you need to play with the deadtime up or down to get it close to zero.

One thing Donnie, don't be scared. My car didn't even run so I had to play with it just to get it started now it's a beast. If something gets goofy you can just go back to a previous logs values.

I also don't see the IAT anywhere. Are you using one with your SD setup? It will run without one but I don't see it on your log either.

bottom left aem wide band

 

[donniegst]

yea i forgot to add the ait on the displayed values my bad cat really go out and mess with it now thres something about a 3 inch straight pipe at 10:17pm that might get the cops called ill post a new log tomorrow see if i can adjust it at all maybe get a log with a short pull up the road and back its not legal on the road yet

 

[Jacolu3]

I'm running 280 Cams and also was not able to get my air flow per revs to 25ish but my fuel trims are good so I'm happy.
Good luck with setting it up. It's very rewarding once your done knowing that you tuned your own car.

 

[rabenne]

I remember people saying that they were getting a slightly higher afperrev after a cam change. I am struggling with understanding why it would actually happen tho. I suppose it makes sense because the geometry of the ports and valves on the throttle body doesnt physically change, but changing valve event timing may affect the speed at which the air is trying to flow through them. But why doesnt setting the BISS correct this? Is it because people with larger cams cant get their car to go down to 750 rpm during base idle speed set?

Anybody with cams please tell me what issues you had trying to set base idle? Im just looking to understand a bit better. Esp before I upgrade...

 

[Jacolu3]

I am new to this tuning so I am not the best source but I also have a smim and a 74mm Tb. So I'm also assuming that affects my air flow per revs. But I could be completely wrong.

 

[1990TSIAWDTALON]

I remember people saying that they were getting a slightly higher afperrev after a cam change. I am struggling with understanding why it would actually happen tho. I suppose it makes sense because the geometry of the ports and valves on the throttle body doesnt physically change, but changing valve event timing may affect the speed at which the air is trying to flow through them. But why doesnt setting the BISS correct this? Is it because people with larger cams cant get their car to go down to 750 rpm during base idle speed set?

Anybody with cams please tell me what issues you had trying to set base idle? Im just looking to understand a bit better. Esp before I upgrade...

Well when a cam gets big enough to have a lot of overlap of the intake and the exhaust valves, it effects vacuum which will effect airflowperrev. If there is a better explanation, please feel free to correct me.

 

[rabenne]

That makes some sense. I just don't get why changing the BISS setting cant compensate for it. It def affects airflow at idle, but with less vacuum we should expect less airflowperrev, right? So I would expect to see smaller airflow per rev at a given RPM while idling with cams.

To calibrate the amount of air entering the engine at idle you have to lower your idle speed to 750 with the 2 boxes highlighted in ecmlink. This tells ensures a proper range of adjustment either way. If the cams are keeping you from physically getting your engine to idle at 750 during this calibration, you shouldnt expect to see "normal" results. So is that generally the issue?

 

[rabenne]

I guess I am not focusing on the relevant information because most people notice an increase in airflowperrev after installing cams. So I guess ill ask if people are setting base idle again after installing the cams? If you dont than I wouldnt expect it to fall into normal ranges. If you do, what problems actually keep people from getting them back down into that range? Does this BISS bottom out and RPM still too high?

Or does it go down to the 750rpm as you would expect?