PLEASE READ BEFORE YOU REPLACE OR ADJUST A TPS

[Mike97gt]

I have seen several people on here break a TPS trying to adjust it to .99 volts. This is not at all needed. the range for the TPS is .53-1.27 volts at idle. Everytime you start your car the PCM takes the lowest TP voltage it sees and assumes thats closed throttle. The way the EEC V setup uses the TPS is a little different then the older EEC IV setups that the 1995 and earlier cars have.

In the EEC V setup in our cars the PCM looks at the TP MODE ( C/T,P/T and W/T) and the throttle angle rate. so as long as your in range at idle (.53-1.27) and your WOT TP voltage is around 4.5 and it increases smoothly as you open the throttle then it's fine.

here is the ford description of the TPS and the pid values table for a 2000 4.6 with M/T ( in the PID table below you will see TP V 1/4 of the way into the table near the bottom of the inputs)

Throttle Position Sensor
The throttle position (TP) sensor (Figure 40) is a rotary potentiometer sensor that provides a signal to the PCM that is linearly proportional to the throttle plate/shaft position. The sensor housing has a three-blade electrical connector that may be gold plated. The gold plating increases corrosion resistance on terminals and increases connector durability. The TP sensor is mounted on the throttle body. As the TP sensor is rotated by the throttle shaft, four operating conditions are determined by the PCM from the TP. Those conditions are closed throttle (includes idle or deceleration), part throttle (includes cruise or moderate acceleration), wide open throttle (includes maximum acceleration or de-choke on crank), and throttle angle rate.

2000 PCED On Board Diagnostics II SECTION 6: Reference Values
Procedure revision date: 12/07/2001

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4.6L 2V Mustang (MAN)
Typical Diagnostic Reference Values
Sensors/Inputs PCM Pin/PID only Measured/PID Values Units Measured/PID
KOEO Hot Idle 30 MPH 55 MPH
FEPS 13 .1 .1 .1 .1 DCV
CKP (+) 21 0 390-450 650-750 970-1030 Hz
O2S12 35 0.1 (D) (D) (D) DCV
ECT 38 .4-1/200-160 .4-1/200-160 .4-1/200-160 .4-1/200-160 DCV/DEG
IAT 39 1.7-3.5/120-50 (K) 1.7-3.5/120-50 (K) 1.7-3.5/120-50 (K) 1.7-3.5/120-50 (K) DCV/DEG
FPM 40 3.5/100 3.5/100 3.5/100 3.5/100 DCV/%
ACCS 41 .1/OFF VBAT/ON (A) .1/OFF .1/OFF DCV/OFF-ON
O2S11 60 0 switching (C) switching (C) switching (C) DCV
02S22 61 0 (D) (D) (D) DCV
FTP V/FTP 62 2.6/0 2.6/0 2.6/0 2.6/0 DCV/IN-H2O
FRPV/FRP 63 3.35/50 3/43 2.8/3.9 2.8/3.9 DCV/PSI
DPFEGR 65 .2-1.3 .2-1.3 .2-4.5 .2-4.5 DCV
OSS 84 0 0 135/1385 240-2500 Hz/RPM
CID 85 0 5-7 10-12 12-16 Hz
ACP 86 VBAT/OPEN VBAT/OPEN VBAT/OPEN VBAT/OPEN DCV/ OPEN-CLOSED
02S21 87 0 switching (C) switching (C) switching (C) DCV
MAF V 88 0 .6-.9 .8-1.3 1.2-2 DCV
TP V 89 .53-1.27 .53-1.27 1-1.2 1.2-1.5 DCV
BPP 92 .1/OFF VBAT/ON (E) .1/OFF .1/OFF DCV/OFF-ON
EFTA PID 50-120 (K) 50-120 (K) 50-120 (K) 50-120 (K) DEG
FLI PID 50 50 50 50 %
LOAD PID (L) 10-20 16-30 20-30 %
MISF PID OFF OFF OFF OFF OFF-ON
RPM PID 0 660-700 1200/1300 1690-1750 RPM
VSS PID 0 0 30 55 MPH



Actuators/ Outputs PCM Pin/PID only Measured/PID Values Units Measured/PID
KOEO Hot Idle 30 MPH 55 MPH
CD5 1 VBAT VBAT VBAT VBAT DCV
LFC 19 .1/OFF VBAT/ON (B) .1/OFF .1/OFF DCV/OFF-ON
CD1 26 VBAT VBAT VBAT VBAT DCV
CD6 27 VBAT VBAT VBAT VBAT DCV
HFC 46 VBAT/OFF .1/ON (B) VBAT/OFF VBAT/OFF DCV/OFF-ON
EGRVR 47 VBAT/0 VBAT/0 VBAT/0 9.8-10.7/44-50 DCV/%
CD2 52 VBAT VBAT VBAT VBAT DCV
CD7 53 VBAT VBAT VBAT VBAT DCV
EVAPPDC 56 0 0-10/0-100 0-10/0-100 0-10/0-100 Hz/%
EVAPCV 67 0 0-10/0-100 0-10/0-100 0-10/0-100 Hz/%
VSO 68 0 0 65 125 Hz
WAC 69 .1/OFF VBAT/ON (A) .1/OFF .1/OFF DCV/OFF-ON
INJ7 72 0 3.5-3.7 3.8-5.5 4.9-9.6 mS
INJ5 73 0 3.5-3.7 3.8-5.5 4.9-9.6 mS
INJ3 74 0 3.5-3.7 3.8-5.5 4.9-9.6 mS
INJ1 75 0 3.5-3.7 3.8-5.5 4.9-9.6 mS
CD3 78 VBAT VBAT VBAT VBAT DCV
CD8 79 VBAT VBAT VBAT VBAT DCV
FP 80 3.7/75 1.3/28 1.3/28 1.3/28 DCV/%
IAC 83 VBAT/0 10/30 9/45 9/41 DCV/%
HTR11 93 .1/ON (P) .1/ON .1/ON .1/ON DCV/OFF-ON
HTR21 94 .1/ON (P) .1/ON .1/ON .1/ON DCV/OFF-ON
HTR12 95 .2/ON (P) .2/ON .2/ON .2/ON DCV/OFF-ON
HTR22 96 .2/ON (P) .2/ON .2/ON .2/ON DCV/OFF-ON
INJ8 98 0 3.5-3.7 3.8-5.5 4.9-9.6 mS
INJ6 99 0 3.5-3.7 3.8-5.5 4.9-9.6 mS
INJ4 100 0 3.5-3.7 3.8-5.5 4.9-9.6 mS
INJ2 101 0 3.5-3.7 3.8-5.5 4.9-9.6 mS
CD4 104 VBAT VBAT VBAT VBAT DCV
MIL PID OFF OFF OFF OFF OFF-ON
FUELPW1 PID (L) 3.5-3.7 3.8-5.5 4.9-9.6 mS
FUELPW2 PID (L) 3.5-3.7 3.8-5.5 4.9-9.6 mS
LONGFT1 PID (-)20-(+)20 (-)20-(+)20 (-)20-(+)20 (-)20-(+)20 %
LONGFT2 PID (-)20-(+)20 (-)20-(+)20 (-)20-(+)20 (-)20-(+)20 %
SHRTFT1 PID (L) (-)10-(+)10 (-)10-(+)10 (-)10-(+)10 %
SHRTFT2 PID (L) (-)10-(+)10 (-)10-(+)10 (-)10-(+)10 %
SPARKADV PID 0 15-20 28-39 35-42 DEG
OTHER Units
VPWR 71 VBAT VBAT VBAT VBAT DCV
VREF 90 5 5 5 5 DCV

NOTE: All generic OBD II readings under no load (PARK or NEUTRAL).




GENERIC OBD II PID VALUES PID Hot Idle 2500 RPM Units
LONGFT1 (-)20-(+)20 (-)20-(+)20 %
LONGFT2 (-)20-(+)20 (-)20-(+)20 %
LOAD 15-26 15-24 %
MAF 4.7-6 16-19 G/S
SHRTFT1 (-)10-(+)10 (-)10-(+)10 %
SHRTFT2 (-)10-(+)10 (-)10-(+)10 %
SHRTFT11 (-)10-(+)10 (-)10-(+)10 %
SHRTFT12 95-100 95-100 %
SHRTFT21 (-)10-(+)10 (-)10-(+)10 %
SHRTFT22 95-100 95-100 %

 

[§hadow]

Why in the world is my tps voltage at 4 at idle and at 1 at wot? Im pretty sure i tested it right. Its a 2001 4.6. I really need to get this ironed out. The nitrous kit i am installing will not work if the tps voltage does not increase at wot.

can anyone help me out here?

 

[§hadow]

anyone?

 

[GDawg]

Why in the world is my tps voltage at 4 at idle and at 1 at wot? Im pretty sure i tested it right. Its a 2001 4.6. I really need to get this ironed out. The nitrous kit i am installing will not work if the tps voltage does not increase at wot.

can anyone help me out here?

I don't know but mine was the same way. Just recently my curb idle has
climbed. Not sure if I just need a new TPS.

 

[Mike97gt]

please post in the main forum, many who already seen this sticky will not check on it and might miss your posts.. Like how I missed both of these questions.