whats the diff between these 2 ECUs
11-09-2009, 01:05 PM
#1
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whats the diff between these 2 ECUs
can any one tell me what the difference is between these to ecu's they both are P72s but the got some different number sequences on them and one is bigger than the other
what one will be better for my 97 gsr?
the top two pic are the same ecu and the bottom two pics are the other ecu
what one will be better for my 97 gsr?
the top two pic are the same ecu and the bottom two pics are the other ecu
11-09-2009, 01:48 PM
#2
Re: whats the diff between these 2 ECUs
The last 3 characters are broken down into 3 parts. "A" generally is used for US ECUs. "G" is European, and "J" is Japanese. There are other versions of this, but you get the idea. The second digit "0" typically means manual transmission, where a "5" means automatic transmission, and the last digit "1" is the version number.
Every ecu has a sticker on the side with various bits of information. The string we are concerned with is a string that fits this format: LLN-LNN, where L is a letter, and N is a number. The first 3 characters will tell you the ecu family, and the last 3 characters will tell you if the ecu is manual or automatic. Generally, ecu's which are manual will have a range of characters starting with -A00 and going to -A49. Autmatic ecu's will be greater than or equal to -A50.
Your first ecu is rather interesting because the last 3 characters starts with 'O'. Supposedly, the first letter is the country code. Haven't personally seen it before.
11-10-2009, 07:18 AM
#6
Re: whats the diff between these 2 ECUs
Say the 003 was made in 94 with the 3rd revision (the 3) and the A01 was made in 95 with the 1st revision... that revision number could possibly be a yearly attribute, therefore meaning the A01 has a higher revision because it may be the 'next generation' ecu.
Personally, I don't see it making any real difference really. I would personally use the 003 temporarily while socketing the A01 for future use. (But that's me).
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