Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
5.4L 4V Mustang
2009 Mercury Mountaineer 4.6 8, RWDSECTION 5.4L 4V Mustang
SENSORS/INPUTS - 5.4L 4V MUSTANG
| Sensors/Inputs | PCM Pin/PID only | Measured/PID Values | Units Measured/PID | |||
|---|---|---|---|---|---|---|
| Ignition On Engine Off | Hot Idle | 48 KM/H (30 MPH) | 89 KM/H (55 MPH) | |||
| FTP | B3 | 2.63/0.61 (M) | 2.61/0.61 (M) | 2.33/0.61 (M) | 2.33/0.61 (M) | VOLTS/PSI |
| APP1 | B5 | 4.0 | 4.0 | 3.8 | 3.6 | VOLTS |
| ACCS | B15 | OFF | ON | (A) | OFF | OFF ON/OFF |
| APP2 | B17 | 1.43 | 1.43 | 1.57 | 1.66 | VOLTS |
| APP3 | B28 | 0.88 | 0.88 | 1.06 | 1.15 | VOLTS |
| CPP-BOT | B33 | NO | NO | NO | NO | YES/NO |
| GENMON | E5 | 0 | 34 | 20.31 | 20.31 | % |
| FRT | E19 | 1.36/140 (K) | 1.49/132.8 (K) | 2.1/107.6 (K) | 1.93/114.8 (K) | VOLTS/DEG F |
| IAT | E22 | 1.45/131 (K) | 2.28/98.6 (K) | 3.29/60.8 (K) | 3.39/55.4 (K) | VOLTS/DEG F |
| MAF | E25 | 0.01 | 0.6 | 0.92 | 1.7 | VOLTS |
| IAT2 | E27 | 0.83/174.2 (K) | 1.19/149 (K) | 1.91/114.8 (K) | 2.12/107.6 (K) | VOLTS/DEG F |
| O2S11 | E28 | (L) | switching (C) | switching (C) | switching (C) | VOLTS/RICH-LEAN |
| O2S21 | E29 | 0 | switching (C) | switching (C) | switching (C) | VOLTS/RICH-LEAN |
| FRP | E32 | 3.01/43.89 | 2.89/41.92 | 2.73/39.1 | 2.69/38.32 | VOLTS/PSI |
| CHT | E41 | 3.27/217.4 | 3.35/213.8 | 3.49/206.6 | 3.41/210.2 | VOLTS/DEG F |
| TP2 | E60 | 1.29/25.88 | 0.79/15.69 | 1.13/22.75 | 1.13/22.75 | VOLTS/% |
| TP1 | E61 | 4.1/18.43 | 4.35/13.33 | 4.15/16.86 | 4.15/16.86 | VOLTS/% |
| HTRCM11 | E69 | 2.1 | 2.1 | 1.89 | 1.06 | AMPS |
| HTRCM21 | E70 | 2.07 | 2.07 | 1.87 | 1.02 | AMPS |
| OSS_SRC | T3 | 0 | 0 | 1290 | 2361 | RPM |
| O2S12 | T24 | (L) | (D) | (D) | (D) | VOLTS |
| O2S22 | T25 | 0.1 | (D) | (D) | (D) | VOLTS |
| HTRCM12 | T47 | 1.57 (AMPS) | 1.57 (AMPS) | 1.32 (AMPS) | 648 (mA) | mA/AMPS |
| HTRCM22 | T48 | 1.57 (AMPS) | 1.57 (AMPS) | 1.32 (AMPS) | 664 | mA/AMPS |
| APP | PID | 0 | 0 | 6.5 | 10.5 | % |
| BARO | PID | 14.73/158.9 | 14.73/158.9 | 14.73/158.9 | 14.73/158.9 | PSI/Hz |
| B+ | PID | 12.88 | 13-14.5 | 13-14.5 | 13-14.5 | VOLTS |
| DECHOKE | PID | YES | NO | NO | NO | YES/NO |
| ETC_ACT | PID | 7.56 | 1.06 | 3.5 | 7.62 | DEG |
| ETC_DSD | PID | 7.62 | 0.99 | 3.49 | 7.62 | DEG |
| ETC_TRIM | PID | 0 (X) | 0.01 (X) | 0.15 (X) | 0.1 (X) | DEG |
| FLI | PID | 0 (H) | 75.7 (H) | 72.45 (H) | 70.33 (H) | % |
| LOAD | PID | 73.37 (L) | 16.22 | 34.92 | 41.87 | % |
| MISFIRE | PID | NO | NO | NO | NO | YES/NO |
| O2BANK1 | PID | VARIES | VARIES | VARIES | VARIES | RICH/LEAN |
| O2BANK2 | PID | VARIES | VARIES | VARIES | VARIES | RICH/LEAN |
| RPM | PID | 0 | 660-780 | 1200-1300 | 1450-1740 | RPM |
| VSS | PID | 0 | 0 | 48km/h (30MPH) | 89km/h (55MPH) | km/h / MPH |
ACTUATORS/OUTPUTS - 5.4L 4V MUSTANG
| Actuators/Outputs | PCM Pin/PID only | Measured/PID Values | Units Measured/PID | |||
|---|---|---|---|---|---|---|
| Ignition On Engine Off | Hot Idle | 48 KM/H (30 MPH) | 89 KM/H (55 MPH) | |||
| FP | B12 | 75/OFF | 21.59/ON | 21.26/ON | 22.41/ON | %/ON-OFF |
| EVAPCV | B13 | OFF | OFF | OFF | OFF | ON/OFF |
| WAC/ACCR | B14 | OFF | ON | (A) | OFF | OFF ON/OFF |
| FPM | B21 | 99.71 | 99.71 | 103.4 | 99.71 | % |
| GENCMD | B32 | 3.79 | 0 (Q) | 0 (Q) | 0 (Q) | % |
| HFC | E4 | OFF | ON (B) | OFF | OFF | ON/OFF |
| EVMV | E6 | 0/OFF | 574/VARYING | 633/VARYING | 666/OFF | mA/OFFVARYING |
| LFC | E7 | OFF | ON (B) | OFF | OFF | ON/OFF |
| SPKDUR_8 | E9 | 0 | 1.84 | 1.56 | 1.65 | ms |
| SPKDUR_5 | E10 | 0 | 1.81 | 1.59 | 1.4 | ms |
| SPKDUR_2 | E11 | 0 | 1.81 | 1.62 | 1.5 | ms |
| SPKDUR_3 | E12 | 0 | 1.78 | 1.4 | 1.59 | ms |
| SPKDUR_4 | E14 | 0 | 1.87 | 1.68 | 1.68 | ms |
| SPKDUR_6 | E15 | 0 | 1.68 | 1.78 | 1.59 | ms |
| SPKDUR_7 | E16 | 0 | 1.75 | 1.71 | 1.37 | ms |
| SPKDUR_1 | E17 | 0 | 1.56 | 1.46 | 1.5 | ms |
| HTR11 | E69 | OFF (O) | ON | ON | ON | ON/OFF |
| HTR21 | E70 | OFF (O) | ON | ON | ON | ON/OFF |
| HTR12 | T47 | OFF (O) | ON | ON | ON | ON/OFF |
| HTR22 | T48 | OFF (O) | ON | ON | ON | ON/OFF |
| EGR_EVAL | PID | NO | NO | NO | NO | YES/NO |
| EVAP020C | PID | NO | NO | NO | NO | YES/NO |
| EVAP020D | PID | ALLOW | ALLOW | ALLOW | ALLOW | ALLOW/ DISALLOW |
| EVAP020R | PID | NOT READY | NOT READY | NOT READY | NOT READY | READY/NOT READY |
| EVAPSOAK | PID | NO | NO | NO | NO | YES/NO |
| EVAP_EVAL | PID | NO | NO | NO | NO | YES/NO |
| FUELSYS | PID | OPEN LOOP | CLOSED LOOP | CLOSED LOOP | CLOSED LOOP | OPEN/CLOSED LOOP |
| LONGFT1 | PID | (L) | (L) | (-)20 TO (+) 20 | (-)20 TO (+) 20 | % |
| LONGFT2 | PID | (L) | (-)20 TO (+) 20 | (-)20 TO (+) 20 | (-)20 TO (+) 20 | % |
| MIL | PID | OFF | OFF | OFF | OFF | ON/OFF |
| SHRTFT1 | PID | (L) | (-)10 TO (+) 10 | (-)10 TO (+) 10 | (-)10 TO (+) 10 | % |
| SHRTFT2 | PID | (L) | (-)10 TO (+) 10 | (-)10 TO (+) 10 | (-)10 TO (+) 10 | % |
| SPARKADV | PID | 10 | 14.5 | 31.75 | 33.25 | DEG |
OTHER - 5.4L 4V MUSTANG
| Other | PCM Pin/PID only | Measured/PID Values | Units Measured/PID | |||
|---|---|---|---|---|---|---|
| Ignition On Engine Off | Hot Idle | 48 KM/H (30 MPH) | 89 KM/H (55 MPH) | |||
| VPWR | B35/36 | 12.69 | 13-14.5 | 13-14.5 | 13-14.5 | VOLTS |
| VREF | B40/E57 | 5 | 5 | 5 | 5 | VOLTS |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.