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Learn Control - stuck off?

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Old Dec 6, 2009 | 06:45 PM
  #1  
Camaero's Avatar
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Car: 1987 IROC Z/28 Camaro
Engine: 355
Transmission: T56
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Learn Control - stuck off?

I started tuning today after months of... well not tuning. Anyway, my BLMS are stuck at 146 and int at 128... then I noticed that it's not going into learn control. It's going into closed loop just fine. I'm using $6E and I tried both my custom apyp bin and my stock one.... still nothing. The car refuses to learn anything new.

Ideas?
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Old Dec 6, 2009 | 07:16 PM
  #2  
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From: Chasing Electrons
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Re: Learn Control - stuck off?

Originally Posted by Camaero
I started tuning today after months of... well not tuning. Anyway, my BLMS are stuck at 146 and int at 128... then I noticed that it's not going into learn control. It's going into closed loop just fine. I'm using $6E and I tried both my custom apyp bin and my stock one.... still nothing. The car refuses to learn anything new.

Ideas?
To go into BLM learn mode there is a CTS, LV8, and RPM qualifiers. IIRC, some masks also require CCP to be active. I realize that this isn't a lot to go on.

Check the calibration CTS threshold and the RPM limits. These are usually the culprits when learn won't activate.

RBob.
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Old Dec 6, 2009 | 10:09 PM
  #3  
Camaero's Avatar
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From: Central Coast, CA
Car: 1987 IROC Z/28 Camaro
Engine: 355
Transmission: T56
Axle/Gears: 9 Bolt w/ 4.10s
Re: Learn Control - stuck off?

Well I just got back from a test drive after checking everything... no bueno.

Basically I'm using a stock apyp bin with modified maf and spark tables... so for the car to be stuck with learn control disabled... I mean everyone that is using apyp should have this problem, and they don't... So what does that leave? Bad hardware? Could a bad MAF cause this somehow?

Would it help anyone if I posted my bin to look at?

Frustrating.
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Old Dec 9, 2009 | 07:58 PM
  #4  
Camaero's Avatar
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From: Central Coast, CA
Car: 1987 IROC Z/28 Camaro
Engine: 355
Transmission: T56
Axle/Gears: 9 Bolt w/ 4.10s
Re: Learn Control - stuck off?

bump

In tunerpro it should definitely say learn control enabled after it goes into close loop correct? Or at least eventually while driving? No matter what bin I use, it never actually enables.... it always says disabled. The rich/lean flag meanwhile is constantly switching back and forth between rich and lean, the open/closed loop updates properly... they all work... but the learn control always says disabled.
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Old Dec 10, 2009 | 07:43 AM
  #5  
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From: Chasing Electrons
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Transmission: check
Re: Learn Control - stuck off?

Reset the ECM by disconnecting battery power to it. Can do this via unplugging the ECM, removing the fuse (under hood), or the battery cable dance.

Once that is done the BLMs will all be reset to 128.

If they move at all from 128 then the ECM is going into learn mode. Which would most likely mean that the wrong status bit is being displayed on the scan tool.

RBob.
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Old Dec 10, 2009 | 04:09 PM
  #6  
Camaero's Avatar
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From: Central Coast, CA
Car: 1987 IROC Z/28 Camaro
Engine: 355
Transmission: T56
Axle/Gears: 9 Bolt w/ 4.10s
Re: Learn Control - stuck off?

Originally Posted by RBob
Reset the ECM by disconnecting battery power to it. Can do this via unplugging the ECM, removing the fuse (under hood), or the battery cable dance.

Once that is done the BLMs will all be reset to 128.

If they move at all from 128 then the ECM is going into learn mode. Which would most likely mean that the wrong status bit is being displayed on the scan tool.

RBob.
Ahh, thanks! I guess it was just being displayed wrong.... which still seems weird, but I'll reset the ECM and try it again to make sure.
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