EPROM problem

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Dec 11, 2015 | 10:02 PM
  #1  
I have a 92 tbi that only runs with out the eprom. I've bought a performance one and it didn't work as well. If it's plug in to keep it running you have to keep pumping the gas. Besides that she runs like a champ
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Dec 12, 2015 | 06:12 PM
  #2  
Re: EPROM problem
Quote: I have a 92 tbi that only runs south out the eprom.
So it stalls when you drive east, west, or north?

I have NO idea what you're trying to say.
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Dec 12, 2015 | 06:36 PM
  #3  
Re: EPROM problem
Sorry no clue why I typed that but it runs with out it
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Dec 14, 2015 | 12:02 PM
  #4  
Re: EPROM problem
Have you shorted pins A&B to check for codes? That is the first thing you need to do. See if the ECM can tell you what it doesn't like. Second step might be to get a ALDL cable and datalog. Good luck!
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Feb 17, 2016 | 04:02 PM
  #5  
Re: EPROM problem
No codes and I had the EPROM check it was corrupt had it reprogrammed and a new ecm ran fine for 15 min turn it off and tried to start it again an it wouldn't. Checked the eprom again and it was corrupt again. Any ideas?
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Feb 19, 2016 | 12:59 PM
  #6  
Re: EPROM problem
When you say no codes, did you at least get a code 12??? You should always get a code 12. How are you checking the EPROM? What brand of EPROM is it? Atmel, Intel, SST? I suspect you have an EEPROM. Most people don't use EPROMs anymore. Also, if it is an EPROM with the little window on the top, you need to keep a sticker over it. They are erased by UV exposure.
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Feb 20, 2016 | 11:40 AM
  #7  
Re: EPROM problem
You reprogramed the original eprom? Get a new one and program it for your car/engine. Reprogramming an eprom that was corrupt is not a good idea. The only way an eprom can become corrupt is internal damage or exposure to UV light (unlikely). GL!
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