Code 102902 rough idle

[Data OO030QQ]

Originally Posted by M5Rick

Hopefully it's not bad gas, I'd check the fuel filter in the gas tank at that mileage. This can only be done on very low fuel, others have done that and found the filter full of crud restricting flow to the LPFP. That said the HPFP in the engine bay on the affected bank could be crying enough, guys have changed their suspect ones and cars are running fine again, running out of things to say now

We changed the filter and it has the same problem. What do you recommend?

[M5Rick]

Originally Posted by Data OO030QQ

We changed the filter and it has the same problem. What do you recommend?

I suspect now it may be a Valvetronic spring that has popped out one of the intermediate levers that befell post #3's M5 engine after a rebuild but if I were you I'd seek a more technical expert first than those giving advice on here as you've changed a few parts already without a result.

[Data OO030QQ]

Originally Posted by M5Rick

I suspect now it may be a Valvetronic spring that has popped out one of the intermediate levers that befell post #3's M5 engine after a rebuild but if I were you I'd seek a more technical expert first than those giving advice on here as you've changed a few parts already without a result.

Specifically, the author of this post has the same problem with his M5, but I don't know how he solved it https://forums.m3cutters.co.uk/threa...tartup.255177/

[M5Rick]

Originally Posted by Data OO030QQ

Specifically, the author of this post has the same problem with his M5, but I don't know how he solved it https://forums.m3cutters.co.uk/threa...tartup.255177/

From what I read in that thread you put on I would then go for a smoke test to see if there's a leak in an air pipe somewhere, somewhere where you can't check properly.