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ECA Checks

ECA PIN VOLTAGE (TOWN CAR 4.6L)(1)(2)

Sensors/Inputs
Sensor/ Input SignalPin # KOEO Hot Idle 30 MPH 55 MPH
OCT ADJ 29 0-.2V 0-.2V 0-.2V 0-.2V
TP 47 .9V .9V 1.0-1.2V 1.1-1.4V
MAF 50 0V .7V 1.2-1.5V 1.7-2.2V
PFE 27 .6V .6V .7-.9V 1.6-4.2V
ECT 7 .6V .6V .6-.7V .6-.7V
ACT 25 1.9-2.0V 2.0-2.2V 3.0-3.3V 3.0-3.3V
IDM 4 55-75RPM 690-750 RPM 1140-1200 RPM 1550-1800 RPM
TOT 49 1.0-1.1V (3) 1.0-1.1V (3) 1.7-2.1V (3) .9-1.1V (3)
PIP 56 4-9 RPM 690-750 RPM 1140-1200 RPM 1550-1800 RPM
HEGO-R 44 0V Switching (4) Switching (4) Switching (4)
BOO 2 0V VBAT (5) 0V 0V
ACCS 10 0-.2V VBAT (6) 0-.2V 0-.2V
VSS+ 3 1 MPH 1 MPH 30 MPH 55 MPH
CID 24 8-10 RPM 8-10 RPM 145-160 RPM 200-235 RPM
HEGO-L 43 0V Switching (4) Switching (4) Switching (4)
MLPS 30 4.4V 4.4V 2.2V 2.2V
FPM -red 8 0V (3) VBAT (3) VBAT (3) VBAT (3)
OSS 5 .05V .05-.06V -.1V -.3V
STI 48 5.0V 3.3-4.9V 3.3-4.9V 3.3-4.9V
Actuators/Outputs 
Act./Output SignalPin # KOEO Hot Idle 30 MPH 55 MPH
INJ 3 39 VBAT (3) 4.0-4.4mS 4.8-5.8mS 6.8-8.4mS
INJ 5 15 VBAT (3) 4.0-4.4mS 4.8-5.8mS 6.8-8.4mS
INJ 4 35 VBAT (3) 4.0-4.4mS 4.8-5.8mS 6.8-8.4mS
INJ 2 59 VBAT (3) 4.0-4.4mS 4.8-5.8mS 6.8-8.4mS
INJ 1 58 VBAT (3) 4.0-4.4mS 4.8-5.8mS 6.8-8.4mS
SS2 51 VBAT (3) VBAT (3) .4V (3) .4V (3)
EVR 33 VBAT (3) VBAT (3) 11.0-VBAT (3) 9.5-11.5V (3)
EPC 38 7.0V (3) 8.6-8.8V (3) 9.3-9.5V (3) 9.1-9.9V (3)
STO/MIL 17 0V VBAT VBAT VBAT
WAC 54 .1-.2V VBAT (6) .1-.2V .1-.2V
ISC 21 VBAT 10.0-11.2V 8.4-9.6V 6.3-7.0V
INJ 7 13 VBAT (3) 0-1% 2-4% 4-10%
FP 22 VBAT .1-.2V .1-.2V .1-.2V
INJ 6 12 VBAT (5) 4.0-4.4mS 4.8-5.8mS 6.8-8.4mS
SAW 36 4-9 RPM 690-750 RPM 1140-1200 RPM 1550-1800 RPM
INJ 8 14 VBAT (5) 4.0-4.4mS 4.8-5.8mS 6.8-8.4mS
SS1 51 .3-.4V (3) .3-.4V (3) VBAT (3) VBAT (3)
CANP 11 VBAT VBAT 9.0-VBAT .2-7.0V
MCCC 53 VBAT VBAT 11.8-VBAT VBAT
OTHER 
SignalPin # KOEO Hot Idle 30 MPH 55 MPH
IGN TIMING TIMING N/A N/A N/A N/A
(1) Monitor 60-pin adapter is required for this vehicle.
(2) Referenced values shown may vary +/- 20% depending on operating conditions and other factors. RPM values are axle and tire dependent.
(3) Monitor in DCV manual mode, reference pin to PWR GND (40/60).
(4) HEGO should switch from rich (red LED) to lean (green LED), or lean to rich, at least once every 3 seconds. HEGO voltage should toggle above and below .450 DCV, but should never be a negative value.
(5) Brake pedal on.
(6) A/C on.
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