1986 325e Help, new motor doesnt run

[robert1700]

New-

325e motor from a member on here, replaced due to previous sucking a valve

Tried:
fuel pressure regulator
three exhaust, manifolds back
three ecu's
two cts
two afms
both fuel pumps
fuel filter
All new vacuum hoses
New cap to spark plugs

Anyone have any ideas why the motor has no power. Idles fine, revs to 1500 rpm.

[EN318isPDX]

Timing

[robert1700]

Timing is spot on.

Also only 32 psi at fuel rail

[Jparkr]

Do a compression check. Inspect the plugs.

[Pdxseth]

Maybe try testing the crank sensors

[e30josh]

Maybe try testing the crank sensors

[robert1700]

130 131 30 on the centers- not trusting those numbers because there is equal air pressure coming out on all cylinders. 136 137

[robert1700]

hmmm this is a weird ecu problem

[robert1700]

I cant even explain this-sometimes the ecu works-sometimes they dont. No revs. Need the best 325e guy out there-willing to pay to diagnosis. BMW Seattle and Car Tender give up

[Wschnitz]

I cant even explain this-sometimes the ecu works-sometimes they dont. No revs. Need the best 325e guy out there-willing to pay to diagnosis. BMW Seattle and Car Tender give up

if its ecu just go to pick n pull and toss one in your bag, they literally dont care, or find one on r3v for free.99.

If you dont know for sure have a 325e guy come and swap with you to see if it fixes it, there are plenty of them around.

[Jparkr]

130 131 30 on the centers- not trusting those numbers because there is equal air pressure coming out on all cylinders. 136 137

Do you mean 130? or is that 30 really 30... if so, you might as well stop since you have a dead cylinder.

If they are all 13x- across the board, why would you not trust the numbers? Good engines are supposed to have equal compression.

Also, did you inspect the plugs? where they new, gunked, smelled like fuel or oily... They will tell you a lot right there.

I cant even explain this-sometimes the ecu works-sometimes they dont. No revs. Need the best 325e guy out there-willing to pay to diagnosis. BMW Seattle and Car Tender give up

You mean they are going to start charging you an arm and a leg, right? They arn't giving up... It just isn't financially wise for them, or you, to continue.

Curious as to why you think its the DME

I have a spare ETA DME you can barrow, possibly buy, if it fixes the issue. Send Andrew down to grab it.

-John

[Jparkr]

Just re-read, you have tried 3 other DMEs according to your first post. I would check fuel pressure at the rail. See if it drops when the engine speed increases.

[robert1700]

Its weird, I take a running ecu out of jaxsons car mine wont start. Use that same ecu in jaxson car runs fine. Im going to swap a i intake and harness with 173 and see what happens

[robert1700]

Doing a 885 head swap with 173. Update Monday

[jswest69]

You're screwed Robert. That is the weirdest "glitch" I have seen. Are you buying beer tonight?