ECU Help Please.

I am not quite sure why these three plugs are different ?
either the engine is not what i was told it was ('01 GS300 2jz-ge vvti *auto) or the ECU is not what i was told it was (2jz-ge vvti *auto). And can some one please enlighten me and shine some light on the Immobilizer? Can I bypass it?thanks
Ryan
89666 30070 (08/2002 - 06/2003) 1 $2,056.04
89666 30132 (02/2001 - 06/2001) 1 $2,056.04
89666 30170 TAIWAN SPEC (07/2000 - 06/2001) 1 $2,056.04
89666 30230 (07/2001 - 02/2002) 1 $2,056.04
89666 30231 (03/2002 - 06/2002) 1 $2,056.04
89666 30232 (07/2002 - 07/2002) 1 $2,056.04
89666 30250 TAIWAN SPEC (07/2001 - 02/2002) 1 $2,056.04
89666 30251 TAIWAN SPEC (03/2002 - ) 1 $2,730.03
89661 3A422 1 $2,087.87
89661 3A490 TAIWAN SPEC (08/1997 - 04/1998) 1 $1,944.43
89661 3A491 TAIWAN SPEC (05/1998 - 07/1998) 1 $1,944.43
89661 3A550 (08/1998 - 09/1998) 1 $2,057.70
89661 3A551 (10/1998 - 04/1999) 1 $2,057.70
89661 3A552 (05/1999 - 07/1999) 1 $2,057.70
89661 3A580 TAIWAN SPEC (08/1998 - 09/1998) 1 $1,944.43
89661 3A581 TAIWAN SPEC (10/1998 - 04/1999) 1 $1,944.43
89661 3A582 TAIWAN SPEC (05/1999 - 07/1999) 1 $1,944.43
89666 30030 (08/1999 - 06/2000) 1 $1,884.06
89666 30040 TAIWAN SPEC (08/1999 - 06/2000) 1 $1,884.06
89666 30130 (07/2000 - 08/2000) 1 $1,868.91
89666 30131 (09/2000 - 01/2001) 1 $2,056.04
89666 30170 TAIWAN SPEC (07/2000 - 06/2001) 1 $2,056.04
89661 3F340 (07/2003 - 07/2004) 1 $2,460.51
89661 30B00 (08/2004 - ) 1 $2,356.52
I would suggest posting up in the GS300 section to see if anyone knows which one of those you need.




