(Home) Toyota previa idle adjustment

hi everyone i have a 1994 2.4 auto petrol previa anyone have any idea where the idle adjustment screw is on the engine please reply asap as when im turning it cuts out

- (#7723) gavin, 10 Jan 04 17:53

If it's anything like other petrol toyotas, I'll guess that you can't adjust the idle speed as it's set by the EFI; however there should be a pair of vacuum pipes connected to a valve in the p/s pump. This is linked in to the idle system to increase the rpms when the p/s pump is under load. Check that side of the system for leaks or blockages...

- (#7723) david miller, 11 Jan 04 04:02

hi david thanks for that i will check that out as soon as i will have time and i will post a message if it does or does'nt solve it,once again thanks

- (#7723) gav, 11 Jan 04 17:09

A long shot but you could try resetting the ECU that controls the EFI by either pulling the appropriate fuse or disconnecting the battery for 30 secs.

- (#7723) Ian Dunse (Derbs), 12 Jan 04 02:56