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Re: 1991 Piguar rich runner (long post)
Posted to Technical Discussion Forum on 7/16/2005

Correct. It is a bank fired injector system with a distributor. The EI module looks an awful lot like an early GM. Not a bypass system though, the engine ECU controls ignition timing at all times.

Although the 92 12 cyl XJ-S does have a TDC sensor in additio... Login to read more.