# The 3 day - E30 M50B25NV Swap

**URL:** <https://forums.speedlife.net/t/the-3-day-e30-m50b25nv-swap/48633>\
**Category:** Builds\
**Created:** [May 18, 2008, 10:53am UTC](https://forums.speedlife.net/t/the-3-day-e30-m50b25nv-swap/48633 "2008-05-18T10:53:59Z")\
**Posts on this page:** 1\
**Showing post:** 82

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**Author:** ![turbociv](https://avatars.discourse-cdn.com/v4/letter/t/dfb087/32.png) [@turbociv](https://forums.speedlife.net/u/turbociv)\
**Post date:** [May 26, 2008, 1:42pm UTC](https://forums.speedlife.net/t/the-3-day-e30-m50b25nv-swap/48633/82 "2008-05-26T13:42:56Z")

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ughh, stupid suggestion but do you have the pass side motormount ground on? Is the fuel pump relay getting voltage. I know that without a crank signal the fuel pump wont turn on. might look into that as well. make sure your wiring for the crank sensor is correct.

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