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Engine/Power - EJ20T (pre-2006 WRX and JDM)There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.
I recently replaced my downpipe with a cat-less pipe, and the resistor supplied by manufacturer doesn't prevent the CEL. (wow)
Has anyone else had a similar issue, and found an 02 generator to correct this? Many Thanks.