Does the computer leave a trace on the PROM?
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Senior Member
Joined: Jul 2000
Posts: 718
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From: Trenton NJ,Rochester Ny
Does the computer leave a trace on the PROM?
Hey I got a Chip that I bought of a a guy on thirdgen....the chip doesn't work with my car. It matches everything execpt the computers were differer. ( somthing he forgot to mention, and since I am new at this....I thought they were all the same) Well any way the companay said they would exchange the chip if there isn't a VIN burned on the chip. Now my question is. Would his car have put a vin or some kind of info in the chip? If so, would mind have overwrote it? Any help would be greatly appreciated
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89 Rs Camaro TBI
"HM" Air Intake
Pioneer headunit 5200
Polk 3 ways in front and back Pioneer 300 watt amp pushin one 8 Jbl GT
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89 Rs Camaro TBI
"HM" Air Intake
Pioneer headunit 5200
Polk 3 ways in front and back Pioneer 300 watt amp pushin one 8 Jbl GT
Member
Joined: Mar 2000
Posts: 331
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From: Centerline, MI 48015
Maybe they store the VIN in some unused part of chips that they custom-write for a specific vehicle?
Otherwise, it wouldn't make any sense. The ECM itself does not know, or care, what the VIN is of its host vehicle, and even if it did it wouldn't be able to write it to the chip!
Otherwise, it wouldn't make any sense. The ECM itself does not know, or care, what the VIN is of its host vehicle, and even if it did it wouldn't be able to write it to the chip!
Junior Member
Joined: Oct 2000
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From: the Corvette Forum
I read you have to disable the checksum in the chip. Otherwise the ecm does a checksum and if the ecm and chip do not match the car will not start.
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Dan
LPE built 383 A/T Package
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Dan
LPE built 383 A/T Package
Thread Starter
Senior Member
Joined: Jul 2000
Posts: 718
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From: Trenton NJ,Rochester Ny
The Checksum. Whut is that. When I put the chip in the car started it just keep giving me error codes
Originally posted by 383LPE:
I read you have to disable the checksum in the chip. Otherwise the ecm does a checksum and if the ecm and chip do not match the car will not start.
I read you have to disable the checksum in the chip. Otherwise the ecm does a checksum and if the ecm and chip do not match the car will not start.
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