TPS HELP!!!!!!!

joe 5.0 · April 13th, 2007, 09:33 PM

ok hers my problem or symptoms

I have a bbk 70mm tb I replaced the IAC valve because the idle was loping
now i cant get the idle right when i check the voltage to the tps the lowest i can get it is 1.04 volts
when you start the car it warms up fine but after that idle drops to about 800 in park and in gear it about 650 but in park when you rev it it come down to about 1700 then very slowly drops to 800

PLEASE HELP

fastford3388 · April 14th, 2007, 04:41 AM

maybe tps? or EGR Position sensor. do you have an engine light on?

joe 5.0 · April 14th, 2007, 05:16 PM

no lcheck engine light

tording92lxnotch · April 14th, 2007, 05:34 PM

You can try making the holes a bit bigger in the TPS so you can turn it to get the voltage to drop below 1.0V. I have always had good luck in the .95 -.98 range on the TPS.

joe 5.0 · April 15th, 2007, 09:11 PM

well i took the whole upper intake apart and found alot of carbon build up in the tb and throttle plate also in the egr spacer and gt40 runners so i cleaned it all up and changed the plugs cap and roter now im waiting for my gaskets to come in as noone around here had the gt40 gaskets in stock
so looks like i will have to wait until tuesday to see if this worked

ps also found the thrittle plate was loose i think that is what was causing the whistle i was getting so i tightend that up to see if that will work

thank for your help i will post more as i move foward with this project

April 13th, 2007, 09:33 PM	#1
joe 5.0 Regular 1993 notch Join Date: Mar 2007 Location: Stamford CT Posts: 105 iTrader: 0 reviews	TPS HELP!!!!!!! ok hers my problem or symptoms I have a bbk 70mm tb I replaced the IAC valve because the idle was loping now i cant get the idle right when i check the voltage to the tps the lowest i can get it is 1.04 volts when you start the car it warms up fine but after that idle drops to about 800 in park and in gear it about 650 but in park when you rev it it come down to about 1700 then very slowly drops to 800 PLEASE HELP

April 14th, 2007, 04:41 AM	#2
fastford3388 Regular 1991 Mustang GT Join Date: Feb 2007 Location: Lisle, IL Posts: 367 iTrader: 0 reviews	maybe tps? or EGR Position sensor. do you have an engine light on? __________________ - '90 Mustang LX-Sold "Debbie" - '89 Mustang GT- Deceased "Lucy" - '91 Mustang GT-70,000 mi "The Unicorn"

April 14th, 2007, 05:34 PM	#4
tording92lxnotch Regular Join Date: Apr 2007 Posts: 165 iTrader: 0 reviews	You can try making the holes a bit bigger in the TPS so you can turn it to get the voltage to drop below 1.0V. I have always had good luck in the .95 -.98 range on the TPS. __________________ 92 notch--Shorty headers--Pro 5.0--3G alt--U/D pullies--A/C delete--190 LPH Walbro FP--Compucar N2O kit--FMS alum D/S--Taurus fan--Weld Draglites--Mallory 685 ign Box--dccontrol fan controller 13.0 - 108 mph - 1.9 60' - 90 shot N2O and 175k on the clock

April 14th, 2007, 05:16 PM	#3
joe 5.0 Regular 1993 notch Join Date: Mar 2007 Location: Stamford CT Posts: 105 iTrader: 0 reviews	no lcheck engine light

April 15th, 2007, 09:11 PM	#5
joe 5.0 Regular 1993 notch Join Date: Mar 2007 Location: Stamford CT Posts: 105 iTrader: 0 reviews	well i took the whole upper intake apart and found alot of carbon build up in the tb and throttle plate also in the egr spacer and gt40 runners so i cleaned it all up and changed the plugs cap and roter now im waiting for my gaskets to come in as noone around here had the gt40 gaskets in stock so looks like i will have to wait until tuesday to see if this worked ps also found the thrittle plate was loose i think that is what was causing the whistle i was getting so i tightend that up to see if that will work thank for your help i will post more as i move foward with this project

Remove Advertisements Sponsored Links
Ford Mustang Forum Advertisement

All times are GMT -4. The time now is 01:28 AM.
Contact Us - Modded Mustangs : Ford Mustang Forums - Privacy Statement - Top
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company. Forum is powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.