# My 2008 E4 is jerky on take off
**URL:** https://community.electricforum.com/t/my-2008-e4-is-jerky-on-take-off/17890
**Category:** Uncategorized
**Created:** [January 15, 2020, 1:47pm UTC](https://community.electricforum.com/t/my-2008-e4-is-jerky-on-take-off/17890 "2020-01-15T13:47:07Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Sharkba8](https://community.electricforum.com/u/Sharkba8)
#### Post date: [January 15, 2020, 1:47pm UTC](https://community.electricforum.com/t/my-2008-e4-is-jerky-on-take-off/17890/1 "2020-01-15T13:47:08Z")
My e4 gem car is jerky on take off. Could this be the gas pedal not making smooth contact? I installed a new motor and slowly getting this thing back together… This forum has helped me big time since I joined and i’m hoping from what I learn I can pass it on to others… Thanks for all of your ideas and help…
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### Author:  [@David\_Illingworth](https://community.electricforum.com/u/David_Illingworth)
#### Post date: [January 22, 2020, 11:46pm UTC](https://community.electricforum.com/t/my-2008-e4-is-jerky-on-take-off/17890/2 "2020-01-22T23:46:04Z")
You can test it using a volt meter. Slowly push the pedal and watch the voltage. The voltage should move slowly and not jump around as the pedal is being pushed. I don’t have the manual so I’m not sure which pins you need to check.
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### Author:  [@Sharkba8](https://community.electricforum.com/u/Sharkba8)
#### Post date: [January 23, 2020, 12:32am UTC](https://community.electricforum.com/t/my-2008-e4-is-jerky-on-take-off/17890/3 "2020-01-23T00:32:58Z")
Thanks David. Some of the problem may be in the passenger side cv joint. It seems to be kinda sloppy. I ordered one today but I can still check the pedal voltage while im waiting on my part.
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### Author:  [@David\_Illingworth](https://community.electricforum.com/u/David_Illingworth)
#### Post date: [January 23, 2020, 1:03pm UTC](https://community.electricforum.com/t/my-2008-e4-is-jerky-on-take-off/17890/4 "2020-01-23T13:03:49Z")
AP sensors have at least two signal wires. One will go from around 1 volt when the pedal isn’t pushed and go up to around 5 volts when the pedal is pushed all the way. The other one does the exact opposite. It will start around 5 volts and end up around 1 volt with the pedal pushed all the way down. You can test at the motor controller connector. That way you are testing the wiring at the same time.
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### Author:  [@Sharkba8](https://community.electricforum.com/u/Sharkba8)
#### Post date: [January 23, 2020, 1:30pm UTC](https://community.electricforum.com/t/my-2008-e4-is-jerky-on-take-off/17890/5 "2020-01-23T13:30:59Z")
Thanks i’ll check that today and post my results…