# auto ecu?

**URL:** <https://forums.speedlife.net/t/auto-ecu/106907>\
**Category:** SON240sx Automotive\
**Created:** [May 26, 2007, 11:29pm UTC](https://forums.speedlife.net/t/auto-ecu/106907 "2007-05-26T23:29:41Z")\
**Posts on this page:** 15\
**Page:** 1

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**Author:** ![mr240sx](https://avatars.discourse-cdn.com/v4/letter/m/839c29/32.png) [@mr240sx](https://forums.speedlife.net/u/mr240sx)\
**Post date:** [May 26, 2007, 11:29pm UTC](https://forums.speedlife.net/t/auto-ecu/106907/1 "2007-05-26T23:29:41Z")

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i want to know if this auto ecu thing will actually eliminate the speed/fuel cut in a 5spd s13, please pm me back cause im looking to get an auto ecu…dont really want to buy one and have it not doing what people says it does, so if you have a 5spd s13 w/ a auto ecu pm me! thanx

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**Author:** ![simplemind7](https://avatars.discourse-cdn.com/v4/letter/s/0ea827/32.png) [@simplemind7](https://forums.speedlife.net/u/simplemind7)\
**Post date:** [May 27, 2007, 1:06pm UTC](https://forums.speedlife.net/t/auto-ecu/106907/2 "2007-05-27T13:06:45Z")

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yes, they work exactly like people say they do. i have an auto ecu in my car right now and have gone way past where the 5 speed ecu cuts you off.

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**Author:** ![DarkForceJackal](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@DarkForceJackal](https://forums.speedlife.net/u/DarkForceJackal)\
**Post date:** [May 27, 2007, 10:54pm UTC](https://forums.speedlife.net/t/auto-ecu/106907/3 "2007-05-27T22:54:59Z")

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Be aware however that it apparently removes the rev-limiter as well.

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**Author:** ![simplemind7](https://avatars.discourse-cdn.com/v4/letter/s/0ea827/32.png) [@simplemind7](https://forums.speedlife.net/u/simplemind7)\
**Post date:** [May 28, 2007, 4:34pm UTC](https://forums.speedlife.net/t/auto-ecu/106907/4 "2007-05-28T16:34:09Z")

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no it doesn’t, i just hit rev limiter in my car 10 minutes ago.

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**Author:** ![fastback240](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fastback240/32/5591_2.png) [@fastback240](https://forums.speedlife.net/u/fastback240)\
**Post date:** [May 29, 2007, 7:00pm UTC](https://forums.speedlife.net/t/auto-ecu/106907/5 "2007-05-29T19:00:36Z")

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i have one laying around here somewhere

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**Author:** ![rob\_2fast4u](https://avatars.discourse-cdn.com/v4/letter/r/b19c9b/32.png) [@rob\_2fast4u](https://forums.speedlife.net/u/rob_2fast4u)\
**Post date:** [July 26, 2007, 12:33pm UTC](https://forums.speedlife.net/t/auto-ecu/106907/6 "2007-07-26T12:33:00Z")

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shit I found out the hard way there was a rev limiter in my auto ecu, lol did a gear pull from 1st-2nd and didnt get it in second (just stayed in neutral) holly shit I thought the engine was ganna be a bomb when I let go of the clutch and went wot again haha from now on Im ganna make sure its in gear!

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**Author:** ![Osad](https://avatars.discourse-cdn.com/v4/letter/o/3ab097/32.png) [@Osad](https://forums.speedlife.net/u/Osad)\
**Post date:** [July 27, 2007, 8:09am UTC](https://forums.speedlife.net/t/auto-ecu/106907/7 "2007-07-27T08:09:12Z")

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I don’t think there is a rev limiter… I hit 7k in 1st last week and it wasn’t stopping. One word of advice, if you have the auto ECU… dont misshift… EVER!

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**Author:** ![simplemind7](https://avatars.discourse-cdn.com/v4/letter/s/0ea827/32.png) [@simplemind7](https://forums.speedlife.net/u/simplemind7)\
**Post date:** [July 27, 2007, 11:46am UTC](https://forums.speedlife.net/t/auto-ecu/106907/8 "2007-07-27T11:46:34Z")

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it limits you just after 7k.

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**Author:** ![a\_ahmed](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/a_ahmed/32/5411_2.png) [@a\_ahmed](https://forums.speedlife.net/u/a_ahmed)\
**Post date:** [July 27, 2007, 9:39pm UTC](https://forums.speedlife.net/t/auto-ecu/106907/9 "2007-07-27T21:39:36Z")

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well i havent tried to go beyond… but… in 1 and 2 (in the automatic 1st gear, and then 1st gear, 2nd gear), i once was in 1 from a launch and well it goes up pretty fast in revs and i had 7000+rpm… it i think hit 7200rpm, it bounced and i was like oh crap… lol stupid.

Also when in 2, if i floor it, it hits about 120km/hr in 2 at 7000rpm, i only took it to 7100rpm a few times, didn’t risk ever since, i never do this anymore, always let it be up to 6500rpm.

Also in neutral as far if I remember there is also a rev limiter.

Definetely no speed limiter though, although when in D, with overdrive it gets stuck at 5000-5500rpm, doesn’t get much faster heh…

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**Author:** ![Osad](https://avatars.discourse-cdn.com/v4/letter/o/3ab097/32.png) [@Osad](https://forums.speedlife.net/u/Osad)\
**Post date:** [July 27, 2007, 9:51pm UTC](https://forums.speedlife.net/t/auto-ecu/106907/10 "2007-07-27T21:51:31Z")

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So wait, you are driving auto, or have an auto ECU? Are the stories true 😮

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**Author:** ![Dimen240](https://avatars.discourse-cdn.com/v4/letter/d/958977/32.png) [@Dimen240](https://forums.speedlife.net/u/Dimen240)\
**Post date:** [July 29, 2007, 7:58am UTC](https://forums.speedlife.net/t/auto-ecu/106907/11 "2007-07-29T07:58:16Z")

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Auto ECU’s with 5 speed do have rev limiters at like 7200RPM.

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**Author:** ![Pants](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pants/32/5590_2.png) [@Pants](https://forums.speedlife.net/u/Pants)\
**Post date:** [July 29, 2007, 1:10pm UTC](https://forums.speedlife.net/t/auto-ecu/106907/12 "2007-07-29T13:10:43Z")

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i have a auto ecu. but the car wont go faster than 240ish it just sits at 5500 and wont move

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**Author:** ![DarkForceJackal](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@DarkForceJackal](https://forums.speedlife.net/u/DarkForceJackal)\
**Post date:** [July 29, 2007, 5:35pm UTC](https://forums.speedlife.net/t/auto-ecu/106907/13 "2007-07-29T17:35:14Z")

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> [@6/18 Taffy's Sunday Meet - 8pm](https://forums.speedlife.net/t/6-18-taffys-sunday-meet-8pm/13456/25):
>
> i have a auto ecu. but the car wont go faster than 240ish it just sits at 5500 and wont move

That should be the 5,500 RPM limiter in 5th gear kicking in… (I believe it’s removed by a sensor wire that goes into the transmission IIRC…not sure of any ill-effects if disconnected)

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**Author:** ![a\_ahmed](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/a_ahmed/32/5411_2.png) [@a\_ahmed](https://forums.speedlife.net/u/a_ahmed)\
**Post date:** [July 29, 2007, 9:58pm UTC](https://forums.speedlife.net/t/auto-ecu/106907/14 "2007-07-29T21:58:35Z")

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^More info?

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**Author:** ![DarkForceJackal](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@DarkForceJackal](https://forums.speedlife.net/u/DarkForceJackal)\
**Post date:** [August 1, 2007, 4:02am UTC](https://forums.speedlife.net/t/auto-ecu/106907/15 "2007-08-01T04:02:31Z")

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There’s some info in here I believe, have a look…

[http://forums.nicoclub.com/zerothread?id=133834&page=2](http://forums.nicoclub.com/zerothread?id=133834&page=2)
