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ECMlink Lean condition after shifts and from stop

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Jacolu3

Proven Member
638
130
Jan 31, 2015
Lake Grove, New_York
1). Any boost, vac, or exhaust leaks?
fixed one small boost leak on the brake booster line

2). Verified mechanical timing?
yes
3). Verified base timing?
yes
4). Ignition system
stock coils and ngk 7s:

5). Motor health (Compression Test)
good

6). Performed basic throttle body adjustments?
Idle Switch:
Throttle Cable:
TPS:between .63-.65
BISS:yes

7). Compression ratio
9.5:1
8). Any known bad sensors or brittle wiring?
no
9). Any DTC/CEL codes?
none
10). Electrical system
Car off (not running):good
Car running:good

11). Base fuel pressure and injector values
Base Fuel Pressure:
Injector Size (cc/min):FIC 1120

12). Properly calibrated and configured wideband sensor
Sensor Brand: Innovate
Calibration Date:less than 3000k miles ago

13). Type of fuel
93 octane

14). Watched ECMlink how-to videos?
yes


So this just started happening. A few weeks ago I went out logging my sd cruise and at the last log I was running good so made no adjustments.
2 weeks later(today) I take her out for a little ride and inbetween shifts it would go lean and bog for a few seconds. And even regular driving It seems to be a little on the leaner side. Also sometimes from a stop it will go lean on accelerating, and then be ok.
I clipped my log to show a spot where it was happening and ill also post the full log.
thanks in advance
-Brian
 

Attachments

  • leancondition.elg
    18.6 KB · Views: 45
  • sunnysatbog.elg
    1.4 MB · Views: 46
Have you calibrated the lc1 lately with the sensor outside the exhaust?
It looks like your VE table still needs significant adjustment.
 
Do you have a log of it running right with the same settings?

Funny you mention this. Before I went out for a drive a smoothed out my VE table with the interpolate tool and I think it adjusted it too much. I was comparing my old logs and new logs and the new values are much lower (about 10-15) when the car goes lean. So I'm going to load the old table in and hopefully this will take care of the lean spots.
 
Just fix the area that is going lean in the VE table or use the fuel sliders to throw fuel at it as a test in that rpm range.
 
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