toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Throttle Body|Testing and Inspection|Page 1210 > < Cold Start Injector Time Switch <--> [Thermo Time Switch]|Locations|Page 1206
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Throttle Body: Testing and Inspection

Fig.59 Vacuum Routing

Fig.60 Vacuum Port Chart

1.

Move throttle linkage through full operating range and ensure that throttle does not bind or stick in any position.

2.

Start engine and check vacuum at throttle body ports.

3.

Vacuum should only be present as indicated in Fig. 60.

4.

If vacuum switching is not as described, or if throttle binds or sticks in any position, remove throttle body and repair or replace as needed.

Throttle Body|Testing and Inspection|Page 1210 > < Cold Start Injector Time Switch <--> [Thermo Time Switch]|Locations|Page 1206