Big TPS issue

[dannyboy1999]

Well my Mac 75mm TB butterfly does sit very flush and the mounting holes are canted as well so when i try to put this thing on im getting 1.25vdc instead of .98-1.0 i adjust it and get .99 but even holding it tight after i tighten it down i end up with 1.15vdc. Now heres the kicker when i had decent voltage i moved the throttle to see if it went up to about 4.75 full open and when i did all i hear was snap.... now my TPS is trash this is my only vehicle right now sold my other. Auto Zone is 5 Miles down the road think i can make it without a TPS? Any other advice greatly appreciated im getting pretty frustrated

 

[dannyboy1999]

Need help

Anyone? Could i make a 5 mile drive without a tps?

 

[Mike97gt]

Yeah you will be fine. Without it you might have some tip in sluggishness and some other odd driveability problems but nothing that will shut the car down on you or blow somthing up.

BTW about the TPS. 1.15 falls within spec for the TPS on your car. It does not have to be at .99 exactly.

IN KOEO mode ( key on engine off mode the pcm needs to see anywhere from .52-1.27 V to opererate correctly and the same voltage for hot idle. It does not have to be a .99. Back in the day in the eec IV cars TP voltage played a much more important role in the computers stratagy. on EEC V fords the PCM pays more attention to the TP MODE ( C/T, P/T and W/T) and throttle angle rate

IN case you don't beleive me here is the reference values out of the ford powertrain control book. 3/4 of the way down you will see the values for TP V thats thottle pos sensor voltage.

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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
AIRM (M) 5 .1/OFF .1/OFF .1/OFF .1/OFF DCV/OFF-ON
FEPS 13 .5-.6 .5-.6 .5-.6 .5-.6 DCV
CKP (+) 21 0 390-450 750-840 970-1030 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 3.5/87-114 3.5/87-114 3.5/87-114 3.5/87-114 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 2.8/3.9 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 0 260/1300 480-2400 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 120-50 (K) 120-50 (K) 120-50 (K) 120-50 (K) DEG
FLI V/FLI PID 50 50 50 50 %
LOAD PID (L) 10-20 16-30 20-26 %
MISF PID OFF OFF OFF OFF OFF-ON
RPM PID 0 660-700 1370-1550 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 1.5/30 1.5/30 1.5/30 DCV/%
IAC 83 VBAT/0 11/20 9/45 7.7/54 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 15-24 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 %





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[dannyboy1999]

that wouldve been nice to know before ibroke it lol

 

[Mike97gt]

Yeah I am going to make a sticky about this. This .99 stuff dates back to the OLD school EEC IV cars, it really don't apply to us.

Every brand of car is different and some differ year to year. some nissans need to have the TPS voltage within .1 of a volt to run right.

 

[dannyboy1999]

good now im sitting pretty at 1.11vdc had high idle when i first put it on but now its fine. Everyone ive seen swears by .98 to 1.0, thanks for the info on 1.27 max vdc

 

[Mike97gt]

well glad I could help.