Is my TPS going bad?

[1K9]

I use the PC clone version.

 

[TURBO200R4]

spray all likkages and blow them off. mine sticks once and a while also wd40 tube inside rubber and spray this may cure problem. if the air temp sensor is in the wrong place it will give trouble. hth

 

[EasTexRIII]

spray all likkages and blow them off. mine sticks once and a while also wd40 tube inside rubber and spray this may cure problem. if the air temp sensor is in the wrong place it will give trouble. hth

Yea, I thought my primary TPS was going out, but cleaned & lubed the stepper motor first, then reset everything & it has been working perfect for months now

 

[Jabo75]

Thank you for the garage tip. The filter on the RamAir is new. I have been checking with the Tune ECU gear. Do you know how to adjust the TPS in the front of the throttle bodies? I changed mine by operator error and perhaps correct set up there could help.

The TPS in the front of the throttle bodies (closest to the fork) is the secondary TPS. It does not control the idle.

Here are the voltage settings for Primary and secondary TPS:
Primary: Closed: .6 volt, tolerance is (+/- .02 volts), Open: .72 volt, tolerance is (+/-.05 volts).
Secondary: .6 volt, tolerance is (+/- .02 volts)

The secondary TPS has a longer cable than the primary TPS, but uses the same connector. Other than the cable length, they are identical. Make sure you do not swap them, they are specific to the application.

The voltage for the Primary TPS is found on the "tests" screen of TuneECU. The first click of "adjust ISCV" shows closed voltage. The second click shows open voltage. Make sure you click "reset adaptations" after making adjustments to the primary TPS.

To see Secondary TPS voltage we look in the “Sensors” column on the left of the “Diagnostics” page. Under the label “Throttle” values for throttle position % and voltage will be displayed with the 2nd line showing readings for the second throttle. There is only one setting (Closed).

I have a copy of the TPS adjustment guid for TuneECU. pm me if you want me to send it.

 

[1K9]

Yea, I thought my primary TPS was going out, but cleaned & lubed the stepper motor first, then reset everything & it has been working perfect for months now

Throttle bodies came off for that? I am concerned with messing with the throttle cables to remove the bodies. Is it an easy thing? Disconnecting the gas and cables is easy. Take pics and mark the connectors.

 

[Jabo75]

Throttle bodies came off for that? I am concerned with messing with the throttle cables to remove the bodies. Is it an easy thing? Disconnecting the gas and cables is easy. Take pics and mark the connectors.

You do not need to take the throttle bodies off to lube the primary stepper motor and linkages.

 

[1K9]

Where exactly should I spray lubricant. Anything I should avoid. WD40, Corrosion X, Engine Brightener. What do you use?

 

[Jabo75]

In the rubber boot on the primary TPS stepper motor, as well as around linkages. The primary stepper motor is rearward on the throttle bodies.
Out of that list, I would avoid Engine Bright.

 

[EasTexRIII]

Boeshield T-9 Waterproof Lubrication 4 oz aerosol | eBay

 

[1K9]

Thank you.