mazdaspeed 6 all ground locations

[Rogi]

hello all, i am in the process of installing new engine in my 07 mazdaspeed 6. currently having an issue with no voltage to injectors. i traced it down to not having ground at the injector relay in the engine bay. i ended up running a ground wire from the negative terminal on the battery to the other side of the relay to complete the circuit and when i turn the car on i am getting voltage at the injectors. that being said does anyone know all the locations of the grounds in the engine bay? i have triple checked the ground by passenger motor mount, hpfp ground for coils, fat ground by the starter, ground for the negative terminal on the battery, also the ground point that has multiple ground mounted to the frame underneath the driver headlight. i seem to also see that on some other forums it does mention there should be a small ground wire with the fat ground wire next to the starter but maybe the ms6 are different.

 

[SyntheticAtmosphere]

Your best bet based on your current project is to donate to the forum (Click Donate in top bar).
This will give you access to more content here such as Factory service manuals and wiring diagrams plus other features such as For sale sections and special content. It also helps to keep the forum up and running for us all in the future.

 

[DatsunZ]

There are a few pictures in a thread I started going over the grounds in the Speed6. There are a few pictured around the HPFP area, as well as a few near the ABS module that are easily accessible. You can find the FSM around the internet for free, but having gone through the FSM of a 370Z to rewire things for swapping into a 240Z the Mazda ground diagrams pale in comparison to other ground diagrams.

Post in thread 'Cranks No Start after Turbo Replacement'
https://www.mazdaspeeds.org/threads/cranks-no-start-after-turbo-replacement.17772/post-122861