[DonnieDangerous]

I purchased a 2006 BMW 330i e90 from this doctor. He had it sitting in his garage for a couple years. Nearly EVERYTHING on this car is brand new including the engine and transmission. The issue 99% of the work was done but still a few things that need to be plugged in and a few random bolts laying around that I can not identify where they go.

1) wire just under the air intake box next to the alternator. 2 pin have it sitting on alternator for easy viewing

2) Looks like some kind of vacuum line and a bracket (just above air peg with 2 loose bolts) right behind air intake box on left side of engine.

3) 4 random star bit bolts with large spacer washers

Attaching pics, hopefully everyone can see them.

[Efthreeoh]

99% of what work is done? Intake manifold removal? Starter? CCV system refresh?

[DonnieDangerous]

Originally Posted by Efthreeoh

99% of what work is done? Intake manifold removal? Starter? CCV system refresh?

99% as in engine, transmission, suspension, brakes, fuel system all new and installed. Only thing left was to hook up sensors, add lubricants, throw in a battery and gas and start. I have the air box off because I am hooking up everything and as far as I can tell these are last couple items. The bolts could have ben extras, I don't know where they go and why I would like to identify so I can make sure.

[DonnieDangerous]

Any e90 gearheads in the Tampa Florida area could help me out? I hate pulling the disabled vet card but recent health issues have wrecked my finances. I could afford a little cash or barter for help getting her running.

[Efthreeoh]

The bolts look like transmission housing (bell housing) bolts. The intake manifold has some 6 or 8 connectors associated with it. I've only removed the intake on my 325i. The 330i has DISA valves. So the 325i has less connectors. When I did mine I wrote down each type of connector (color, pin count, wire color, and location). I think I still have the piece of cardboard laying around in my shop. I'll see if I can find it. It was several years ago now, but that connector doesn't look familiar.

I looked at my Z4, which has the DISA N52, but did not see any obvious place where that connector would plug into.

[Cal122]

1) Looks like the connector to one of the DISA Valves. The 330i has the 3 stage intake manifold, there are two DISAs - A large one on the outside of the manifold that's easy to see and get to, and a smaller one underneath the intake that's harder to get to.

The 325i doesn't have the 3 stage intake, so they just leave those wires unconnected on the side of the intake manifold as shown in the picture here: https://g42.bimmerpost.com/forums/sh...d.php?t=537916

[gbalthrop]

Originally Posted by DonnieDangerous

... 2006 BMW 330i e90... Nearly EVERYTHING on this car is brand new including the engine and transmission.
The issue 99% of the work was done but still a few things that need to be plugged in and a few random bolts laying around
that I can not identify where they go.
1) wire just under the air intake box next to the alternator. 2 pin have it sitting on alternator for easy viewing
2) Looks like some kind of vacuum line and a bracket (just above air peg with 2 loose bolts) right behind air intake box on
left side of engine.
3) 4 random star bit bolts with large spacer washers...

You will almost certainly need proper Diagnostic Software (INPA/ISTA) or Scan Tool to sort issues. You also need to understand
HOW BMW identifies wiring & connectors. There are 11-digit BMW Part#s on many components. Also ISTA has "Connector View"
which shows what a particular connector (Female Plug) looks like, with shape, number of sockets & Location.

The ISTA wiring diagrams show the wire color & size of each wire in a particular connector. See the example ISTA
Diagrams attached, showing that information for your 5-socket connector that goes to MAF Sensor on the Airbox, shown
in your 2nd photo. There appears to be an error in the Connector View, as the SSP wiring diagram shows 5 wires in that
Connector, but the diagram of Connector shows only 4 sockets instead of 5.

Your "Mystery Connector" is NOT separated. The two (white?) wires on the male connector side appear to have been cut.
To be able to identify the connector, we need a photo of the Female Connector Sockets, & the color of the two
wires inside the loom. You can safely use a Multimeter, Volts Setting, to determine if there is voltage output in either of
the two cut wires, with ignition ON. As example, if you measured voltage at your MAF Connector, with Ignition ON, you
should have ~ 12V Battery Voltage at the Orange wire, X6207/3, & 5V (Sensor Reference Voltage) at the Blue wire,
X6207/2. Note the "5V" above the Resistor/Transistor symbol above the Blue wire, in the DME.

Your Alternator Connector wire for the "BSD" interface (?), to regulate Voltage output, appears damaged.
Also I would check to see what brand & Part# that alternator is. BMW BSD Alternators are wired/controlled differently
from others. Your Alternator connector locations differ from those shown in ISTA.

As for the Vacuum line & loose bolts/screws, I can't see enough from your photo #1 to identify the system, & I have
the later N52KP engine. Any "vacuum" line in that area should be related to the Crankcase Breather and its heater. Is
there an "Oil Separator" toward the Lower-Left-Rear of the block?

The 330i came from the factory with 2 DISA Valves on the Intake Manifold, which added ~ 30 HP. I can't tell from your
photos if your "Replacement Engine" has those valves or not.

As for the bolts, I have NO idea what those 4 bolts are for. Be aware that the N52 Block is Magnesium Alloy, and any bolt
that contacts, or is threaded into Magnesium must be Aluminum to prevent corrosion. Aluminum bolts are Torque to Yield
(T-T-Y), and single use. If they are loosened, they may NOT be re-used. If there is a part# on the bag, that might
help identify. Bolts inserted into Aluminum Head are Steel & may be re-used. A magnet can determine steel vs. Aluminum.

Questions:
1) What are last-7 Characters of VIN?
2) Make/Model of any Scan Tool or Diagnostic Software (INPA/ISTA) available?
3) Replacement Engine is from WHAT vehicle, or what is Engine # (L side of block, viewed between intake ports 1 & 2)?
4) Can you please attach photo (smaller ;-) showing sockets of mystery connector & identify wire colors?
5) Can you please attach photo of bracket/loose bolts/vacuum hose(s)?
6) Do you have a Windows Laptop, or an Android phone? You will need cheap Multimeter: $10 HFT or Amazon.
George

[DonnieDangerous]

I will work on getting you this info. I greatly appreciate the in depth response.

Here is the obd reader I have. Hopefully will work?

[DonnieDangerous]

Originally Posted by Efthreeoh

The bolts look like transmission housing (bell housing) bolts. The intake manifold has some 6 or 8 connectors associated with it. I've only removed the intake on my 325i. The 330i has DISA valves. So the 325i has less connectors. When I did mine I wrote down each type of connector (color, pin count, wire color, and location). I think I still have the piece of cardboard laying around in my shop. I'll see if I can find it. It was several years ago now, but that connector doesn't look familiar.

I looked at my Z4, which has the DISA N52, but did not see any obvious place where that connector would plug into.

I haven't taken off the plastic engine cover but I do see several exact size wire going under it. Of course these could be any similar sized wire though. Will take it off and update.