89661-53721 89663-53371 Denso GEN1 original ECU file – Lexus IS 3.0 231hp

SW numbers next to 89663-53371

The closest SW numbers in the archive, by spelling. They are other files, not equivalents. Worth a look when a digit may have been misread.

Other numbers for the Lexus IS 3.0 231hp

20 files cover exactly this car and engine, on Denso GEN1 (18), Denso, type not listed (2). If your ECU reads differently from this page, 12 of the others:

This ECU and car in figures

Denso GEN1: 2 753 files, 2 709 SW numbers, 331 with a map pack. Makes: Toyota (2 169), Lexus (425), Hino (113), Toyota BUS (38). Most listed: Toyota Hilux (322), Toyota Land Cruiser (279), Lexus IS (171), Toyota Corolla (145).

Lexus IS: 286 files. ECU types: Denso GEN1 (171), Denso D76F019XXX (62), Denso, type not listed (49), Denso 275036-1470 (4). Engine codes: 4GR-FSE (65), 2GR-FSE (29), 2UR-GSE (20), 8AR-FTS (11).

Engine code 3GR-FE: 14 files, on Denso GEN1 (10), Denso, type not listed (4). Listed for Lexus IS (9), Lexus GS (3), Toyota Crown (2).

914 of the 914 files here with HW 8966… are Denso units.

5 122 of the 5 122 files here with SW 8966… are Denso units.