Inspection And Adjustment Of Idle Speed

(See HINT on page FI-18)


(a) Engine at normal operating temperature

(b) Air cleaner installed

(c) All pipes and hoses of air induction system connected

(d) All vacuum lines connected

HINT: All vacuum hoses for EGR systems, etc. should be properly connected.

(e) EFI system wiring connectors fully plugged

(f) All operating accessories switched OFF

(g) Transmission in neutral range

2. CHECK ISC SYSTEM (See page FI-151)



(a) Using SST, connect terminals TE1 and E1 of the check connector.

SST 09843-18020

HINT: Decrease the rpm after the engine maintains a speed of the 1,000 - 1,300 rpm for 5 seconds.

Idle speed Adjusting Screw

Idle speed Adjusting Screw

Sst 09843 18020

(b) Check the idle speed. Idle speed: 650 rpm or more

(c) If the idle speed is not as specified, adjust the idle speed by turning the IDLE SPEED ADJUSTING SCREW.

Sst 09843 18020

(d) Remove SST. SST 09843-18020



700 ± 50 rpm USA A/T 850 ± 50 rpm CANADA M/T 750 ± 50 rpm CANADA A/T

If the idle speed is not within these values, carry out either of the below listed procedures and then recheck the idle speed.

Carry out a driving test, including stop-go several times at a speed above 10 km/h, or start the engine, idle for 30 seconds and then turn the engine off repeatedly. By doing this, idle data will be stored in the ISC and the idle rpm will be at specified value.

Egr Toyota 1kz

Was this article helpful?

0 0
Simple Car Care Tips and Advice

Simple Car Care Tips and Advice

Put an End to All Your Car Troubles. Does Your Car Break Down Often? Are You Spending More On Fuel Than You Thought You Would? Is Maintaining Your Car Eating Into Your Budget? Make Your Car Last Longer with Some Simple Do It Yourself Tips.

Get My Free Ebook


  • LARA
    Where is the throttle adjustment on a 1991 toyota Camry?
    9 years ago
    How to increase idle on sw20?
    9 years ago
  • russell
    How do i adjust the idle on a 1991 toyota mr2?
    9 years ago
  • lassi
    How to clean efi injectors toyota supra mk2?
    8 years ago
    How to adjust idle speed on toyota hilux 1985?
    8 years ago
  • timo
    How to adjust idle speed on 1991 camry?
    4 years ago
  • pearl
    How to adjust idle speed on 1991 toyota truck?
    1 year ago
  • JENS
    What is the specified idle speed for toyota mr2 spyder?
    1 year ago
  • rowan labingi
    How high does the mr2 1991 idle?
    1 year ago

Post a comment