Testing the downstream o2 sensor.
#20
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From what I understood, and I believe I got it in a thread about crankshaft sensors (after swapping one out), this cleared the memory. Obviously there was some misinformation in whatever forum>thread I read that in.
So far the engine light has not come back on. The faith in my wiring work has been restored.
Last edited by KJamesJR; 03-18-2014 at 02:47 PM.
#21
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You do good work mate.
~~~~~~~
Here's a tidbit I dug up on the web about clearing keep alive memory.
Simple, not this voodoo stuff about disconnecting both battery cables and touching them together, or disconnecting the positive cable and touching it to the engine...then turn the headlights on, then off (or some such Gobbledy Gook).
Clearing Keep Alive Memory and Relearning Adaptive Strategy
Keep Alive Memory And Adaptive Strategy:
The Electronic Engine Controls system constantly monitors and adjusts the PCM calibration to correct for normal wear and aging of components. The PCM uses these calibration adjustments to shift fuel delivery calculations and idle speed specifications to compensate for the aging of the vehicle.
When a system component is replaced, the Keep Alive Memory (KAM) should be cleared to erase the information stored by the processor from the original component.
Clearing Keep Alive Memory:
To clear the KAM, disconnect the battery negative terminal for five minutes or more (preferably 15 minutes).
Adaptive Strategy Relearn Procedure:
After repairs have been made and the KAM cleared drive the vehicle for at least ten miles to allow the PCM to relearn the values for optimum performance.
Note: During the ten mile relearn drive, the vehicle may exhibit some driveability symptoms. These should be eliminated when the KAM has relearned the operating values.
~~~~~~~
Here's a tidbit I dug up on the web about clearing keep alive memory.
Simple, not this voodoo stuff about disconnecting both battery cables and touching them together, or disconnecting the positive cable and touching it to the engine...then turn the headlights on, then off (or some such Gobbledy Gook).
Clearing Keep Alive Memory and Relearning Adaptive Strategy
Keep Alive Memory And Adaptive Strategy:
The Electronic Engine Controls system constantly monitors and adjusts the PCM calibration to correct for normal wear and aging of components. The PCM uses these calibration adjustments to shift fuel delivery calculations and idle speed specifications to compensate for the aging of the vehicle.
When a system component is replaced, the Keep Alive Memory (KAM) should be cleared to erase the information stored by the processor from the original component.
Clearing Keep Alive Memory:
To clear the KAM, disconnect the battery negative terminal for five minutes or more (preferably 15 minutes).
Adaptive Strategy Relearn Procedure:
After repairs have been made and the KAM cleared drive the vehicle for at least ten miles to allow the PCM to relearn the values for optimum performance.
Note: During the ten mile relearn drive, the vehicle may exhibit some driveability symptoms. These should be eliminated when the KAM has relearned the operating values.
#22
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Thread Starter
You do good work mate.
~~~~~~~
Here's a tidbit I dug up on the web about clearing keep alive memory.
Simple, not this voodoo stuff about disconnecting both battery cables and touching them together, or disconnecting the positive cable and touching it to the engine...then turn the headlights on, then off (or some such Gobbledy Gook).
Clearing Keep Alive Memory and Relearning Adaptive Strategy
Keep Alive Memory And Adaptive Strategy:
The Electronic Engine Controls system constantly monitors and adjusts the PCM calibration to correct for normal wear and aging of components. The PCM uses these calibration adjustments to shift fuel delivery calculations and idle speed specifications to compensate for the aging of the vehicle.
When a system component is replaced, the Keep Alive Memory (KAM) should be cleared to erase the information stored by the processor from the original component.
Clearing Keep Alive Memory:
To clear the KAM, disconnect the battery negative terminal for five minutes or more (preferably 15 minutes).
Adaptive Strategy Relearn Procedure:
After repairs have been made and the KAM cleared drive the vehicle for at least ten miles to allow the PCM to relearn the values for optimum performance.
Note: During the ten mile relearn drive, the vehicle may exhibit some driveability symptoms. These should be eliminated when the KAM has relearned the operating values.
~~~~~~~
Here's a tidbit I dug up on the web about clearing keep alive memory.
Simple, not this voodoo stuff about disconnecting both battery cables and touching them together, or disconnecting the positive cable and touching it to the engine...then turn the headlights on, then off (or some such Gobbledy Gook).
Clearing Keep Alive Memory and Relearning Adaptive Strategy
Keep Alive Memory And Adaptive Strategy:
The Electronic Engine Controls system constantly monitors and adjusts the PCM calibration to correct for normal wear and aging of components. The PCM uses these calibration adjustments to shift fuel delivery calculations and idle speed specifications to compensate for the aging of the vehicle.
When a system component is replaced, the Keep Alive Memory (KAM) should be cleared to erase the information stored by the processor from the original component.
Clearing Keep Alive Memory:
To clear the KAM, disconnect the battery negative terminal for five minutes or more (preferably 15 minutes).
Adaptive Strategy Relearn Procedure:
After repairs have been made and the KAM cleared drive the vehicle for at least ten miles to allow the PCM to relearn the values for optimum performance.
Note: During the ten mile relearn drive, the vehicle may exhibit some driveability symptoms. These should be eliminated when the KAM has relearned the operating values.
Had I actually disconnected the battery while I was doing the work, I probably wouldn't have had any issues. I guess that makes me moron in more than one way.
But two weeks seems like an awful long time to be riding on an engine light without it adjusting. I mean... I put on 87 miles a week just getting to work, not to mention all the in between honey-do driving.
Last edited by KJamesJR; 03-18-2014 at 03:16 PM.
#23
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For us DIY folx, (not in a shop), no harm in leaving it disconnected overnight. "for capacitors to bleed down" , I've read. Glad to hear you got it,
#24
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Great information.
Had I actually disconnected the battery while I was doing the work, I probably wouldn't have had any issues. I guess that makes me moron in more than one way.
But two weeks seems like an awful long time to be riding on an engine light without it adjusting. I mean... I put on 87 miles a week just getting to work, not to mention all the in between honey-do driving.
Had I actually disconnected the battery while I was doing the work, I probably wouldn't have had any issues. I guess that makes me moron in more than one way.
But two weeks seems like an awful long time to be riding on an engine light without it adjusting. I mean... I put on 87 miles a week just getting to work, not to mention all the in between honey-do driving.
You, my friend, are not a moron.
Carry on.
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