16197427 PCM Information $0D

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Dual vs single knock sensors:

V8 apps use single sensor. 4.3 V6 uses dual sensors wired in parallel. Code 43 will set if voltage on KS line is incorrect. Dual sensors can be used on V8 or single on V6 by changing max voltage parameter to set code 43.

Single Sensor
; ERROR 43
; KNOCK SYSTEM FAIL
;---------------------
L4E6A: FCB $A0 160 ; 16 SEC'S. HI VOLTS CK PERIOD
L4E6B FCB $E6 230 ; 4.5 VDC A/D UPPER VOLTS LMT
L4E6C FCB $14 20 ; 0.390 VDC A/D LOWER VOLT LMT

Dual sensors:

L4E6A: FCB $A0 160 ; 16 SEC'S. HI VOLTS CK PERIOD
L4E6B FCB $A2 162 ; 3.17 VDC A/D UPPER VOLTS LMT
L4E6C FCB $14 20 ; 0.390 VDC A/D LOWER VOLT LMT