DIY: In depth M52/S52 OBD2 swap

[328ijunkie]

you dont need all the wires obviously but yes.

[choleaoum]

Depends on how you do the wiring but there are wires you need in all of them.

In all 3 of those connectors really?

[328ijunkie]

Depends on how you do the wiring but there are wires you need in all of them.

[choleaoum]

Just took out a S52 wiring harness, you know on the E36, there are 3 plugs where the fuse box on the driverside inside the engine bay? Do I need all 3 of those plugs? Or I just need that ONE larger plug (i believe the x20) because I was not able to seperate it yet without removing the whole entire engine.

[328ijunkie]

Look just do not fuck with those, they are TTY, and precisely angle torqued.

Put rags in the block, and just bend the bracket back and forth, it will snap clean and not affect the cap bolts or make a mess of shavings.

Done it this way 5 times and counting.

lol. ^This works and is what plenty of people do it. Im OCD as hell though and i remove the bracket and replace the 2 main cap bolts. Gives me the chance to look at that main bearing anyway 8-)

[328ijunkie]

I hope this is an acceptable area to ask this question. But, I'm helping a friend swap an S52 into his 90 model E30. We're planning to keep OBDII. He bought the AKG adaptor, primarily out of convenience, but I'm not convinced it's going to work. He did speak with the owner at AKG before purchasing and was told it would work. But, my friend also said the owner's accent made the conversation difficult.

Does anyone have any direct experience with using the AKG adaptor and keeping OBDII? Thanks!

From what ive seen with the AKG adapter a little more wiring will be necessary if you want everything to work. The AKG adapter is designed to be A: Universal and B: for OBD1 primarily.

(Im a vendor for them so am not ripping on their product in any way 8-))

[mtlbloodshot]

Your buddy should have contacted Dave... 328ijunkie.. He knows everything odb2

[craiggroves91]

I hope this is an acceptable area to ask this question. But, I'm helping a friend swap an S52 into his 90 model E30. We're planning to keep OBDII. He bought the AKG adaptor, primarily out of convenience, but I'm not convinced it's going to work. He did speak with the owner at AKG before purchasing and was told it would work. But, my friend also said the owner's accent made the conversation difficult.

Does anyone have any direct experience with using the AKG adaptor and keeping OBDII? Thanks!

I think Dave (328ijunkie) or another wiring guru will have to answer that one. I don't think it would matter though.

I would have him call AKG again and check with them to be sure.

[GrifM3]

I hope this is an acceptable area to ask this question. But, I'm helping a friend swap an S52 into his 90 model E30. We're planning to keep OBDII. He bought the AKG adaptor, primarily out of convenience, but I'm not convinced it's going to work. He did speak with the owner at AKG before purchasing and was told it would work. But, my friend also said the owner's accent made the conversation difficult.

Does anyone have any direct experience with using the AKG adaptor and keeping OBDII? Thanks!

[328ijunkie]

I posted that pic in some other thread. On E36 driveshafts you put the CSB on backwards in relation to how it mounts on an E30 shaft. The biggest thing is making sure the DS is straight from Diff to trans.

[mtlbloodshot]

Concerning the CSB on a e36 drive shaft.. Oem say that the rubber mounting has a collared extension - this MUST face the shaft (rather than the spline) end.

Is it true that I must go against their directions and do the opposite? Basically to mount it backwards would be the that collared extension will with face the spline?

[Mr.SWISS]

Well I shoulda worded it better. Haha what I meant is are they longer and need to buy a shorter bolt for that particular main? If it will bottom out? Thanks!

Look just do not fuck with those, they are TTY, and precisely angle torqued.

Put rags in the block, and just bend the bracket back and forth, it will snap clean and not affect the cap bolts or make a mess of shavings.

Done it this way 5 times and counting.

[mtlbloodshot]

No information on the drive shaft csb? I was reading somewhere a while ago that it has to mounted backwards.. :/

[E30Reed]

Well I shoulda worded it better. Haha what I meant is are they longer and need to buy a shorter bolt for that particular main? If it will bottom out? Thanks!

[evandael]

^ you have to buy $25 dollars worth of main bolts if you unbolt it (they are torque-to-yield and thus one time use only)