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91camaro_rs Member
Joined: 03 Dec 2008 Posts: 1712 Location: Fox Island, Wa
1991 Chevrolet Camaro RS
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Posted: Wed Mar 06, 2013 1:22 pm Post subject: code 51...yet again |
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so i was about to go to the store, remote started my car and noticed it wasnt running right, i go out there and the ses light is sorta flashing, and so i pull the code and prom error (code 51) came up, tried a backup chip i had and still code 51, why does this happen like every 2 months?? im pretty sure ive done everything right on the burning side, idk if there is any grounds under the steering column that might have been bumped when installing the new alarm, any thoughts?
normally i just re burn the chip and it goes away for a few months, _________________
'91 Camaro RS 5.7 TPI- 700r4- 3.27 posi- headers- chambered exhaust- |
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Twilightoptics Hardcore (12sec Club)
Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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Posted: Wed Mar 06, 2013 2:13 pm Post subject: |
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Sounds like some kind of power surge wiping the data on the chip.
No facts or experience to supoort this. Just a theory
I'd try some different chips all rogether _________________ A redline a day keeps the carbon away! |
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91camaro_rs Member
Joined: 03 Dec 2008 Posts: 1712 Location: Fox Island, Wa
1991 Chevrolet Camaro RS
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Posted: Wed May 01, 2013 8:32 pm Post subject: |
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ok so i tried the new updated sst chips and it only lasted a week and erased itself again, can i put a wire to the case of the ECM to the frame of the car for a better ground? there has to be something causing this.... _________________
'91 Camaro RS 5.7 TPI- 700r4- 3.27 posi- headers- chambered exhaust- |
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MrMike98 Member
Joined: 18 May 2010 Posts: 231 Location: Bremerton
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Posted: Thu May 02, 2013 8:28 am Post subject: |
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go back to uv erasable eprom's---no uv in ur car-- no chip wipe---
just a thought |
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91camaro_rs Member
Joined: 03 Dec 2008 Posts: 1712 Location: Fox Island, Wa
1991 Chevrolet Camaro RS
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Posted: Thu May 02, 2013 10:36 pm Post subject: |
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that is a good thought _________________
'91 Camaro RS 5.7 TPI- 700r4- 3.27 posi- headers- chambered exhaust- |
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Fri May 03, 2013 5:48 am Post subject: |
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I disagree. There are millions of people worldwide using EEPROM's without issue in all kinds of electronic equipment. That's like saying "My car broke down, I'll just give up on it and ride a horse."
You have a lot of aftermarket accessories installed. I'm betting on a power surge as Paul mentioned, or maybe a faulty ground. Go through and check everything, especially the ECM circuit (there are several) and the ECM grounds.
I'm betting somebody tapped power for something off one of the nice pink wires under the dash, or maybe a missing ground strap off the block or something.
Also bear in mind that on a VATS car the ignition resistor circuit draws power from the ECM fuse, so if you have a goofy VATS bypass on your car that could be the issue. |
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91camaro_rs Member
Joined: 03 Dec 2008 Posts: 1712 Location: Fox Island, Wa
1991 Chevrolet Camaro RS
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Posted: Fri May 03, 2013 9:23 am Post subject: |
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i have my remote start on the pink wire off the column, and i have the resistor in there, ill take vats off in the tune as well i did forget to do that _________________
'91 Camaro RS 5.7 TPI- 700r4- 3.27 posi- headers- chambered exhaust- |
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Twilightoptics Hardcore (12sec Club)
Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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Posted: Fri May 03, 2013 10:15 am Post subject: |
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Resistor is bad news. Bypass the damn thing properly and be done. _________________ A redline a day keeps the carbon away! |
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91camaro_rs Member
Joined: 03 Dec 2008 Posts: 1712 Location: Fox Island, Wa
1991 Chevrolet Camaro RS
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Posted: Fri May 03, 2013 2:28 pm Post subject: |
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is the proper way just bypassing it in tunerpro? _________________
'91 Camaro RS 5.7 TPI- 700r4- 3.27 posi- headers- chambered exhaust- |
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