Topic: Tacoma Idle

[Dark Chaos]

I own a 2000 Tacoma reg cab when I am in first gear letting my truck idle along at about 800 rpms then all of a sudden it starts speeding up by its self up to 1500 rpms then back down. I was reading were the 2000 EFI systems there is nothing to adjust it is either that the fuel injectors could be dirty or malfunctioning? Experienced Toy mechs please help.

[Marlin]

After you have checked for loose air intake fittings and/or vacume leaks--

The most common problem is a dirty/fouled air flow sensor that is sending a false signal. It is mounted on the air cleaner housing and secured by two screws.
Unplug the wiring harness, and then remove the sensor. I have had some success cleaning the sensor with brake clean and then lighty blowing it off with compressed air.

If all else fails, do it right and install a new sensor

After market, open element air cleaners are know for causing problems with the air flow sensor.

Marlin

[Dark Chaos]

I checked all my hoses they are tight and free of dry rot I am going to go to the part store to pick up some cleaner then I will tell you my results.

[SWAMPER]

Same thing happens to me but I own a 94 3.0 V6 Runner I will try Marlins trick and tell you guys if that helps

[SWAMPER]

I dint get to try Marlins trick because my truck was in the shop and they replaced the Idler pulley and that fixed it

[yotaboy79]

check the tps (throttle positioning sensor)