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Pin Voltage Charts

PIN VOLTAGE

Selected Item KOEO Units Hot Idle 30 MPH 55 MPH Units
Input 
AC SW OFF/ON N/A OFF/ON OFF/ON OFF/ON N/A
RPM (CMP Position) 0 RPM 750 +/- 50 1200-1650 1850 RPM
ECT 176-220 °F 176-220 176-220 176-220 °F
EGRT 0-4.5 V 0-4.5 0.2-1.0 0.2-1.0 V
Idle Sw. ON N/A ON OFF OFF N/A
HO2S 0 V 0.05-1.2 (3) 0.05-1.2 (3) 0.05-1.2 (3) V
MAF 0.78 V 1.71 2.4 2.8 V
PNP ON N/A ON OFF OFF N/A
PSP SW OFF N/A OFF @ OFF @ OFF @ N/A
TP 0.46/ 4.12 V .46 0.78 1.2 V
VPWR 11-14 V 11-14 11-14 11-14 V
VSS 0 MPH 0 30 55 MPH
VST OFF N/A OFF (2) OFF OFF N/A
Output 
ACR OFF N/A OFF (1) OFF (1) OFF (1) N/A
EGRC ON N/A ON OFF OFF N/A
Fuel PW 0 mS 3.38 4.4-5.5 6.6-7.3 mS
HFAN OFF N/A OFF OFF-ON (5) OFF-ON (5) N/A
IAC 0 % 15-28 71 71 %
LFAN OFF N/A OFF-ON (4) OFF-ON (4) OFF-ON (4) N/A
S-LEARN 100 % 100 90-100(2) 90-100(2) %
SPOUT 15 DEG 15 36 25-35 DEG
(1) A/C On.
(2) Monitor in DC manual mode, reference pin to PWR GND.
(3) HO2S should cycle from rich to lean at least once every 3 seconds. Voltage should cycle above and below 45 volt, and should never be negative.
(4) Brake applied.
(5) Reference values may vary 20 percent, depending on operating conditions and other factors. RPM values are axle and tire dependent.
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