# 00 Subaru Outback hiccup at cruise **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [May 24, 2008, 4:09pm UTC](https://community.cartalk.com/t/00-subaru-outback-hiccup-at-cruise/14394 "2008-05-24T16:09:53Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![happyvalley](https://avatars.discourse-cdn.com/v4/letter/h/7cd45c/32.png) [@happyvalley](https://community.cartalk.com/u/happyvalley)\ **Post date:** [May 24, 2008, 4:09pm UTC](https://community.cartalk.com/t/00-subaru-outback-hiccup-at-cruise/14394/1 "2008-05-24T16:09:53Z")
My 2000 Outback 2.5l hiccups at cruise. Usually it is worst at highway speeds, but can happen at any speed if cruising at a constant speed. It will accelerate fine at any speed and idles fine as well. 95% of the time the CEL does not come on, but the other 5% of the time the light comes on as well as the AT Oil Temp light(auto trans) and it shifts hard and stays in gear until I restart the car. It has pulled a P0122 code which is the Throttle position sensor circuit low input a few times thus I have replaced the TPS twice with absolutely no change? Any ideas? I thought something with the ECU trying to lean out the mixture at cruise, but leaning to much? Please Please help this has stumped everyone so far! Thanks! Sean ---
**Author:** ![mcparadise](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mcparadise/32/32_2.png) [@mcparadise](https://community.cartalk.com/u/mcparadise)\ **Post date:** [May 24, 2008, 4:19pm UTC](https://community.cartalk.com/t/00-subaru-outback-hiccup-at-cruise/14394/2 "2008-05-24T16:19:57Z")
Is the engine misfiring or is it something in the transmission? A misfire will turn on the CEL and set a code, but I don’t know why it would also turn on the AT oil temp light. The transmission fluid is clean and at the correct level, isn’t it? ---
**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\ **Post date:** [May 24, 2008, 8:21pm UTC](https://community.cartalk.com/t/00-subaru-outback-hiccup-at-cruise/14394/3 "2008-05-24T20:21:43Z")
The TPS code may be due to a wire connection problem rather than the sensor itself being bad. I would check all the connections between the sensor and the ECU for that circuit to see if there is any problem.