# any of you OBD II guys run open loop all the time? **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [January 23, 2009, 5:19pm UTC](https://forums.speedlife.net/t/any-of-you-obd-ii-guys-run-open-loop-all-the-time/201616 "2009-01-23T17:19:54Z")\ **Posts on this page:** 2\ **Page:** 2
**Author:** ![GNocide](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gnocide/32/5947_2.png) [@GNocide](https://forums.speedlife.net/u/GNocide)\ **Post date:** [January 26, 2009, 7:49pm UTC](https://forums.speedlife.net/t/any-of-you-obd-ii-guys-run-open-loop-all-the-time/201616/21 "2009-01-26T19:49:29Z")
> [@ATTN: Myspace Nerds & Stalkers v.privateprofiles](https://forums.speedlife.net/t/attn-myspace-nerds-stalkers-v-privateprofiles/39381/23): > > For that past year or so I have run my Typhoon in open loop all the time, it is OBD I. I haven’t had any issues at all except for highway driving it will sometimes hit a rich spot, but ive pretty much worked out alot of driveability issues. my typhoon runs open loop on a Saudi chip all the time…but it also doesn’t know what a knock sensor, o2 sensor and egr valve is. the atr chip runs closed loop-i dont use this one as much -all i know is the open loop helps me run faster in the quarter ---
**Author:** ![2003\_SSEi](https://avatars.discourse-cdn.com/v4/letter/2/b77776/32.png) [@2003\_SSEi](https://forums.speedlife.net/u/2003_SSEi)\ **Post date:** [January 28, 2009, 5:35pm UTC](https://forums.speedlife.net/t/any-of-you-obd-ii-guys-run-open-loop-all-the-time/201616/22 "2009-01-28T17:35:20Z")
> [@fs:1985 camaro (parting out)](https://forums.speedlife.net/t/fs-1985-camaro-parting-out/36365/14): > > If the LTFT’s lock to 0.0, then it is not carrying trims over, cause theres no way your running 0.0 LTFT’s all the time… no the trims lock 0.0 when the car enters PE, and i have said i have tuned the car so that the trims are within +/-3, and that is better than what our specific 3800 vendors recommend of +/-5 01GPGT let me know if you need any help, id be glad [Previous page](https://forums.speedlife.net/t/any-of-you-obd-ii-guys-run-open-loop-all-the-time/201616.md?page=1)