SubieSmart.com » ECU Discussion » Subaru » 1993 EJ18 ECU ~ ROM ID: 733C21
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Author Topic: 1993 EJ18 ECU ~ ROM ID: 733C21  (Read 620 times)
bubba2533
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« Reply #15 on: July 12, 2009, 10:27:54 PM »
Quote from: RoadRunner on July 10, 2009, 05:11:40 PM
Mine specifically was a 1999 Impreza RS EJ253.

I thought 99 RS was EJ251...?
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RoadRunner
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« Reply #16 on: July 13, 2009, 02:48:05 PM »
Nope...

98 RS = EJ25D (DOHC, MAF)
99 RS = EJ253 (SOHC, MAF)
00-04 RS = EJ251 (SOHC, MAP)
05+ RS/i= EJ253 (SOHC, MAF, with AVLS)
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