Air fuel gauge?

If you are going straight to the o2's, the black wire is the signal wire.

Don't think there is a mechanical A/R guage......

Firemanz said:

Don't think there is a mechanical A/R guage......

Click to expand...

Yeah...I believe they are all Electrical.

sorry were can you get an a/f gage and were..how do you install it to get the reading ???

~Stangzorized~ said:

Which wire do I hook it up to?

Mechanical Autometer gauge.

Click to expand...

Is your gauge wide-band or narrow-band ? Thinking of getting one myself. I heard the narrow gauge ones are useless - only indicate stoich. at 14.7 or NOT. Thanks.

Got one....worked fine. The wire you hook it up to depends on the year of the car. Mine in my 98 i think was the white wire on the 02.

Pin out chart

Pin Circuit Wire Color Application Abbreviation
1 315 P/O Shift Solenoid 2 SS2
2 658 PK/LG Malfunction Indicator Lamp MIL
11 91 P/W Purge Flow Sensor PFS
13 107 P Flash EPROM Power Supply FEPS
15 915 PK/LB BUS (-) BUS -
16 914 T/O BUS (+) BUS +
21 349 DB Crankshaft Position Sensor (+) CKP +
22 350 GY Crankshaft Position Sensor (-) CKP -
24 570 BK/W Power Ground PWR GND
25 57 BK Case Ground CASE GND
26 526 DG/LG Ignition Coil 1 COIL-1
27 237 O/Y Shift Solenoid 1 SS-1
29 224 T/W Transmission Control Switch TCS
30 242 DG Octane Adjust OCT ADJ
33 676 PK/O Vehicle Speed Sensor (-) VSS-
35 392 R/LG Heated Oxygen Sensor-12 (R-Right) HO2S-12
36 968 T/LB Mass Air Flow Sensor Return MAF RTN
37 923 O/BK Transmission Fluid Temperature Sensor TFT
38 354 LG/R Engine Coolant Temperature Sensor ECT
39 743 GY Intake Air Temperature Sensor IAT
40 238 DG/Y Fuel Pump Monitor FPM
41 198 DG/O A/C Cycling Switch ACCS
45 228 DB Low Fan Control LFC
46 639 LG/P High Fan Control HFC
47 360 BR/PK EGR Vacuum Regulator Solenoid EVR
48 659 O/W Clean Tachometer Output CTO
51 570 BK/W Power Ground PWR GND
52 527 R/LB Ignition Coil 2 COIL 2
54 924 BR/O Torque Converter Clutch Solenoid TCC
55 37 Y Keep Alive Power KAPWR
58 679 GY/BK Vehicle Speed Sensor (+) VSS+
60 74 GY/LB Heated Oxygen Sensor-11 (F-Right) HO2S-11
61 393 P/LG Heated Oxygen Sensor-22 (R-Left) HO2S-22
64 199 LB/Y Transmission Range Sensor TR
65 352 BR/LG Differential Pressure Feedback EGR Sensor DPFE
67 101 GY/Y Canister Purge Solenoid CANP
69 331 PK/Y Wide Open Throttle A/C Cut-off WAC
71 361 R Vehicle Power VPWR
72 561 T/R Injector 7 INJ-7
73 559 T/BK Injector 5 INJ-5
74 557 BR/Y Injector 3 INJ-3
75 555 T Injector 1 INJ-1
76 570 BK/W Power Ground PWR GND
77 570 BK/W Power Ground PWR GND
78 528 PK/W Ignition Coil 3 COIL-3
79 911 W/LG Transmission Control Indicator Lamp TCIL
80 926 LB/O Fuel Pump Control FP
81 925 W/Y Electronic Pressure Control EPC
83 264 W/LB Idle Air Control Solenoid IAC
84 970 DG/W Output Shaft Speed Sensor OSS
85 282 DB/O Cylinder Identification CID
86 439 T/LG A/C Pressure Switch ACPSW
87 94 R/BK Heated Oxygen Sensor-21 (F-Left) HO2S-21
88 967 LB/R Mass Air Flow Sensor MAF
89 355 GY/W Throttle Position Sensor TP
90 351 BR/W Vehicle Reference Voltage VREF
91 359 GY/R Signal Return SIG RTN
92 511 LG Brake On/Off Switch BOO
93 387 R/W HO2S Heater-11 (F-Right) HTR-11
94 388 Y/LB HO2S Heater-21 (F-Left) HTR-21
95 389 W/BK HO2S Heater-12 (R-Right) HTR-12
96 390 T/Y HO2S Heater-22 (R-Left) HTR-22
97 361 R Vehicle Power VPWR
98 562 LB Injector 8 INJ-8
99 560 LG/O Injector-6 INJ-6
100 558 BR/LB Injector-4 INJ-4
101 556 W Injector-2 INJ-2
103 570 BK/W Power Ground PWR GND
104 529 R/Y Ignition Coil 4 COIL-4


Scott

They're pretty much a light show, but I got it for a really good price. I tapped into the ECU, can't exactly remember the PIN number though. Do a search for A/F ratio guage and I'm sure you'll find more info.....

My friend installed on in his 2002 GT. It does absolutly nothing for him, other then just being a show and changing colors when he floors it. I dunno how accurate they are (i would think that they arnt), and i certainly wouldnt use it to tune obviously. On the other hand, a vaccum guage can be helpfull to make sure that your engine is running smoothly. (by being able to read it you can see engine problems, if you blow a gasket, ect.)
Mike
P.S i do not know how to read a vaccum guage in the manor posted above, i learned of it from a friend whose into classic hotrods.