TPS % issues? Help me please wizards!

**VENOMOUS** · 03-26-2009, 10:18 AM

O.K. after logging my cat for the first few times ever, ( rookie) I noticed that I may have found my low rpm ( 1200-1800rpm) bucking issue may be. My TPS% at say for example 55 mph ( this is just one of many instances throughout the logging) is at 0%. As far as I've read our TPS are not adjustable, correct? So.......maybe I need to raise the TPS via the adjuster screw for idle and do a idle relearn? Any other suggestions?

**JoshieDoom** · 03-26-2009, 10:53 AM

Change the TPS if you havent. Simple and cheap test to see if its actually the sensor

**VENOMOUS** · 03-26-2009, 11:45 AM

Originally Posted by JoshieDoom

Change the TPS if you havent. Simple and cheap test to see if its actually the sensor

Well it seems to work right as I depress the pedal, not missing any range at all, so I figured why spend money on a new one if this one is working.
It is like either the tab on the throttle body that moves the TPS is bent or just needs to be open a hair by idle screw. Any time I'm crusing along in any gear just putting around it is at 0%? My blade is barely open if at all ( pedal is all the way back out pretty much.)

**Frost** · 03-26-2009, 01:50 PM

Unless you are pressing the gas at all it should be zero... or are you saying you are on the throttle and seeing 0 reported?

**VENOMOUS** · 03-27-2009, 05:56 AM

Originally Posted by Frost

Unless you are pressing the gas at all it should be zero... or are you saying you are on the throttle and seeing 0 reported?

I am indeed on the throttle, but cruising speed like 55 in 6th or maybe 35-40 in 4th. Just low rpm crusing. It shows 0% and if I lift off the throttle I can tell I wa barely even in it. Like the minute amount of throttle it takes to do say 55-60 in 6th just isn;t registering TPS wise. I figure that it is putting me in the wrong fuel trim cells throughout the band. Now when I am at WOT it does register 100% and everything in between as a Potentiometer should. It;s just like the Throttle body isn't opening the blade on the TPS as early as it should. Factory TB by the way.