alykat Posted March 2, 2020 Share Posted March 2, 2020 97 Legacy Outback 2.5 Starts instantly runs several seconds,and dies. Key is still on, turn it starts instantly runs a few seconds and dies..repeat. Already replaced the fuel pump and filter. Ideas ? Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted March 3, 2020 Share Posted March 3, 2020 possible IACV hose loose? Link to comment Share on other sites More sharing options...
lmdew Posted March 3, 2020 Share Posted March 3, 2020 1+ disconnected IAC hose, the 1" dia. one going to the air filter box. Had the air filter cover been removed before this started? Link to comment Share on other sites More sharing options...
alykat Posted March 3, 2020 Author Share Posted March 3, 2020 Yes, I believe the air filter had just been replaced . Link to comment Share on other sites More sharing options...
lmdew Posted March 4, 2020 Share Posted March 4, 2020 The IAC hose is not connected to the airbox. I've had shops to this more than once. Easy fix, the 1" dia black IAC air hose is thick/stiff but it can be bent enough to get it back on the nipple without removing the upper half of the air filter box. Link to comment Share on other sites More sharing options...
alykat Posted March 4, 2020 Author Share Posted March 4, 2020 Well the hose was connected and clamps tight. Also tried cleaning the slightly crappy Idle air unit and checked the gasket which was good. Still acting the same way. I think I saw a reference some place about an anti theft system that might act like this ? I don't have an owners manual, so don't know if the car is equipped with one. Link to comment Share on other sites More sharing options...
Numbchux Posted March 4, 2020 Share Posted March 4, 2020 Trouble Codes? My first thought is a post-MAF air leak. i.e. hose off, cracked intake tube, etc. But that's a stab in the dark. Link to comment Share on other sites More sharing options...
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