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blm stuck on 114 at idle?

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Old Sep 15, 2004 | 03:00 PM
  #1  
Markgyver's Avatar
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Joined: May 2004
Posts: 26
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From: Littleton, Colorado
Car: 1992 K15 Blazer
Engine: 383 with TPI, Edelbrock Intake & Runners, 24lb svo injectors, 730, $8d
Transmission: 700r4
blm stuck on 114 at idle?

383, TPI, SD, 7730 ecm.


Im have been working on my VE tables and have noticed that no matter what I do it seems that my BLMs are stuck on 114 at idle.
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Old Sep 15, 2004 | 03:36 PM
  #2  
RednGold86Z's Avatar
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From: Corona
Car: 92 Form, 91 Z28, 89 GTA, 86 Z28
Engine: BP383 vortech, BP383, 5.7 TPI, LG4
Transmission: 4L60e, 700R4, 700R4..
Axle/Gears: 3.27, 2.73
What .ecu are you using? Are you tuning the VE lower table in the 600-1000 range at 30-45 kPa? Are you waiting for closed loop to turn on? Is learning activating? Are other cells changing? What happens if you reset your ecu (disconnect the battery)?
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Old Sep 15, 2004 | 03:56 PM
  #3  
Markgyver's Avatar
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Joined: May 2004
Posts: 26
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From: Littleton, Colorado
Car: 1992 K15 Blazer
Engine: 383 with TPI, Edelbrock Intake & Runners, 24lb svo injectors, 730, $8d
Transmission: 700r4
I am using Super-8dm2.ecu
Yes I am tunning in that range. The Closed Loop is on and the Learn control is Enabled. The other cells are changing. I have not tried reseting the ecm...
Also how long does it take the ECM to learn a new chip?
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Old Sep 15, 2004 | 05:11 PM
  #4  
RednGold86Z's Avatar
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20 Year Member
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Joined: Mar 2000
Posts: 1,692
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From: Corona
Car: 92 Form, 91 Z28, 89 GTA, 86 Z28
Engine: BP383 vortech, BP383, 5.7 TPI, LG4
Transmission: 4L60e, 700R4, 700R4..
Axle/Gears: 3.27, 2.73
How drastically are you changing those points? I've seen some pretty steep VE changes around idle to get BLFs up - like a difference of 10 from the cells around it sounds familiar at least when dealing with non-stock setups and roughed-in tuning.

Once learning activates, it should start immediately incorporating the Integrator into the block learn.
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Old Sep 16, 2004 | 03:34 AM
  #5  
gta324's Avatar
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Joined: Aug 1999
Posts: 2,441
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From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
I had similar problem on one car, check the BPW while your scanning if they drop and BLM is the same, bad O2 or bad injector.

(my case 2 inj. was bad...)

/N.
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