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ecm looks like a remanfactured one still code 51

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Old Aug 20, 2011 | 08:34 PM
  #1  
Zach/90\irocZ's Avatar
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Engine: 305 to 350
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ecm looks like a remanfactured one still code 51

Just look at ecm looks brand new think last owner got a remanifactured one and I took the ground out of battery to erase trouble code still code 51
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Old Aug 20, 2011 | 09:14 PM
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From: RHODE ISLAND
Car: 1988 iroc-z
Engine: 350 Vortec TPI
Transmission: 700r4
Axle/Gears: 3.73 4th gen Torsen 10bolt
Re: ecm looks like a remanfactured one still code 51

right from alldata:

CODE 51 - FAULTY MEM-CAL OR PROM PROBLEM

CHECK THAT ALL PINS ARE FULLY INSERTED IN THE SOCKET. IF OK, REPLACE PROM, CLEAR MEMORY, AND RECHECK. IF CODE 51 REAPPEARS, REPLACE ECM.
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Old Aug 20, 2011 | 09:16 PM
  #3  
Zach/90\irocZ's Avatar
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Car: 88 Formula, 90 Iroc RIP, 92 RS Sold
Engine: 305 to 350
Transmission: 700r4
Axle/Gears: 10 Bolt
Re: ecm looks like a remanfactured one still code 51

Yea I did that ecm looks new tho its not OEM
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Old Aug 20, 2011 | 09:17 PM
  #4  
regal301's Avatar
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From: RHODE ISLAND
Car: 1988 iroc-z
Engine: 350 Vortec TPI
Transmission: 700r4
Axle/Gears: 3.73 4th gen Torsen 10bolt
Re: ecm looks like a remanfactured one still code 51

what it looks like don't matter.you cant "see" a bad microprocessor or prom.
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Old Aug 20, 2011 | 09:18 PM
  #5  
Zach/90\irocZ's Avatar
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Joined: Aug 2011
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From: San Diego, California For Now
Car: 88 Formula, 90 Iroc RIP, 92 RS Sold
Engine: 305 to 350
Transmission: 700r4
Axle/Gears: 10 Bolt
Re: ecm looks like a remanfactured one still code 51

How to clear memory?? I just removed the fuse and disconnected the ground from battery but left the red wire on battery n waited 40 sec
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Old Aug 20, 2011 | 09:19 PM
  #6  
Zach/90\irocZ's Avatar
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Joined: Aug 2011
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From: San Diego, California For Now
Car: 88 Formula, 90 Iroc RIP, 92 RS Sold
Engine: 305 to 350
Transmission: 700r4
Axle/Gears: 10 Bolt
Re: ecm looks like a remanfactured one still code 51

Yea that's true !!!!
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Old Aug 20, 2011 | 09:47 PM
  #7  
regal301's Avatar
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From: RHODE ISLAND
Car: 1988 iroc-z
Engine: 350 Vortec TPI
Transmission: 700r4
Axle/Gears: 3.73 4th gen Torsen 10bolt
Re: ecm looks like a remanfactured one still code 51

disconnecting a battery cable,pulling the ecm fuse, or unplugging the ecm will all clear the codes.

you can get a prom from here: www.tbichips.com

u will even pick up a few hp.
i run his chips in my car and truck.
give him a call,great guy to deal with.
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