What do all these sensors mean?

[cmills26]

My car turned 100k miles and I am looking to replace most all of the sensors. What do all thes abbreviations mean? ECT, IAC, ACT, TPS, IAT. Where can I go and buy all these at? Thanks for all the help!

 

[Rootus]

Engine Coolant Temperature
Idle Air Control
Air Charge Temperature
Throttle Position Sensor

I don't know that I would worry about replacing them. If you want to do a tune up, do plugs/rotor/cap/wires, and if they're stock, O2 sensors. Clean the mass air sensor, throttle body, and IAC. 100k miles is nothing.

Dave

 

[VibrantRedGT]

The FAQ sheet has explanations of all these. It's a sticky thread up top.

 

[red94fiveo]

I don't know that I would worry about replacing them. If you want to do a tune up, do plugs/rotor/cap/wires, and if they're stock, O2 sensors. Clean the mass air sensor, throttle body, and IAC. 100k miles is nothing.

Dave

I would have to agree with Dave. Theres no sense changing them if they're working alright. Do the others things mentioned if its time for a tuneup.