1st let me say this is a Great forum. The wealth of knowledge here is incredible. I have learned a ton about my car just from searching. I was previously signed up as Buschman but could never post for some reason.

Here's what we have. 1992 e34 with the m50 engine & a 5 speed. This is a project that was for my 15 year old son & I which we bought for $350. It's not real pretty but the leather was good & it ran & the AC worked.

We have put in a clutch, A rear bearing, A general module for a door lock & window problem, & a center tie rod. We are still OK money wise but we probably won't have any body work done. It is now inspected & street legal.

It doesn't run as smooth as it should. It bogs down & almost shudders in low rpm. If I am in 5th gear going 65mph & floor it it just shakes & slowly speeds up. It idles fair but not like it should. 5000 to 7000 rpms feel pretty good. It seems to run a little better when it's cold. I can feel it miss sometimes & then smooth out. I get an occasional intake backfire.

Car has over 180# compression in each cylinder. It has new plugs. It has 17 inches of vacume at idle.The old plugs looked great. A BMW mechanic told me if it was a vacume leak that was bad enough cause this much problem it would throw a check engine light & a code. The only code is a 1444 which means there are no codes. I have run one can of Techron through it but plan to run more. I do think the car sat up for a while. The TPS checked ok with a meter.

I have previous experience rebuilding a 1985 K100 rs bike which ran like ass until I cleaned the injectors so I am leaning this direction.

Any good ideas? Thanks in advance!!