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TPS VOLTAGE

Posted: Thu Apr 23, 2009 10:59 pm
by b20beast
Hello Everyone Car is Turbo 00 SiR The problem is that, TPS voltage will not go below .47V no matter what. Even if i just plug it without connected to the TB. Still will not go under .47V Also the Voltage Fluctuates Sometimes Sometimes its .47V sometimes .51V thanks everyone in advance

Posted: Fri Apr 24, 2009 1:15 am
by Gaskleppie
do you have a turbo timer or boost controller connected to that tps wire? Maybe there's your problem.

Posted: Fri Apr 24, 2009 12:19 pm
by b20beast
No sir. No turbo timer or anything connected to the tps

Posted: Sat Apr 25, 2009 9:33 pm
by b20beast
someone must have an idea

Posted: Sun Apr 26, 2009 1:06 am
by calvin
turn tps loose the 2 screws

Posted: Sun Apr 26, 2009 12:20 pm
by b20beast
plugged in another tps to harness without connecting TB, and moved the tps sensor manually.... will not go under .47V

Posted: Sun Apr 26, 2009 1:18 pm
by butch11a
check sensor ground is 0v.

Posted: Sun Apr 26, 2009 11:05 pm
by Adam Hopkins
What does it matter? Just correct it through the ectune software by saying that 0% throttle = .47 volts. Problem solved.

Posted: Mon Apr 27, 2009 6:43 am
by calvin
tps calibration tools menu

Posted: Mon Apr 27, 2009 1:31 pm
by b20beast
Thing is sometimes its .47Vidle and other times .51V Thats the problem

Posted: Wed May 27, 2009 6:21 am
by stingg
Got the exact same problem. Issue with this fluctuating tps is that sometimes the fuel cut comes in and sometimes not, the idle also goes crazy sometimes must be due to ecu thinking you pressed the throttle but physically not.I suspect it is something to do with grounding... havent got it fix though :(

Posted: Wed May 27, 2009 10:18 am
by calvin
Adjust fuelcut. Such a small 1% fluctuation should affect everything.

Posted: Wed Jun 03, 2009 10:00 am
by b20beast
Thermostat ground has 3 Ground Wires. 2 Small and one large. ONE Small wire is holding by 1 strand. What is the small wire ground for? alt? injectors?

Posted: Wed Jun 03, 2009 11:11 am
by IHaveTurbos
Small wire is one for some of the sensors, just clip it and add a new ring terminal.

Posted: Wed Jun 03, 2009 12:13 pm
by b20beast
maybe tps,and that was causing my tps voltage to act funky