Throttle Position Sensor

Mazda Forum Mazda Classifieds Photo Gallery Member List Search Contact Us Sponsors
Models Mazda News Mazda Recalls TSBs Timeslips Register Login

Throttle Position Sensor

Printable Version

Mazda Forums >> Mazda Vehicles >> Mazda 323,Mazda 626 & Mazda 929 >> Throttle Position Sensor

Page: [1]

Message

<< Older Topic Newer Topic >>

Throttle Position Sensor - 10/10/2008 1:42:04 AM

ravensoul567

Posts: 7
Joined: 8/20/2008
Status: offline

How do you know when the throttle position sensor has gone out?

Post #: 1

RE: Throttle Position Sensor - 10/10/2008 5:02:05 AM

virgin1

Posts: 4922
Joined: 3/15/2007
Status: offline

Several symptoms that I am aware of are:
1) Car is hard to start when cold followed by a rough idle.
2) Bucking can occur through certain RPM ranges
3) A searching, up and down idle. And
4) Stalling when you let off the gas, especially if you do it quickly.

There may be more, but those are the ones I know about.

_____________________________

"There is no tool you can buy that will replace experience." - Josh Mills, C.K.DeLuxe

(in reply to ravensoul567)

Post #: 2

RE: Throttle Position Sensor - 10/10/2008 5:09:04 AM

virgin1

Posts: 4922
Joined: 3/15/2007
Status: offline

To diagnose you will need a volt-ohm meter ($7 @ Radio Shack or others.) Set the meter to Ohms. Disconnect the plug and connect the probes to the TPS. Have someone SLOWLY depress the gas pedal. The meter needle or gauge should drop slowly. Look for any drop outs (0 resistance points,) or jumps and spikes in the meter.

_____________________________

"There is no tool you can buy that will replace experience." - Josh Mills, C.K.DeLuxe

(in reply to virgin1)