electrical and ignition What The Heck Are These?

[2fysh]

Whilst working under the hood trying to fix a leaking master cylinder reservoir, I looked over and noticed these.  One has a wire running to it, and the other one the similar wire is hanging next to it.  Can someone please tell me what they are?  Could not find it in the book.  TIA

 

 

 

[bento]

I couldn't tell you exactly what each one does but they're part of the emissions system.

[peterschop]

They are part of the emissions equipment. They are electric valves. On my car, they are just decoration. 

[73touring]

Bobbins for HT AC?

[Stevenc22]

Emissions equipment. Removable if your want

[Pierre]

They are obviously not being used on your car.  They are vacuum valves.  One of them connects to the distributor to prevent vacuum advance when cold, and the other connects to the EGR to also prevent operation during cold running.

[Buckeye]

Excellent info/ diagrams on emission

http://www.bmw2002faq.com/topic/64297-emissions-diagrams/

[Mike Self]

Their real purpose for those things is revenge by German engineers for the stupid emissions stuff the Feds made 'em put on their precision engines, making them run poorly and get worse gas mileage than without 'em.  As CD would say...pull 'em off and toss 'em in your neighbor's pool.

 

mike

[2fysh]

Can the whole system be removed without problems.  There is a schematic on the drivers side hood bay that shows everything.  Is there anything in this system that has to stay?

 

Edited August 27, 2014 by 2fysh

[Mike Self]

Yep, it can all be removed.  Just make sure that you securely plug any vacuum ports that are left exposed on the intake manifold, and plug the EGR port in the exhaust manifold.  There should be several posts in the archives that cover this process.  But before removing, make sure your state doesn't inspect for emission equipment presence...

 

mike

[bianchini]

I actually wrote a topic on this. here is a link: http://www.bmw2002faq.com/topic/155300-keep-pull-plug/

[eurotrash]

You will need the resistor wire on 74-76 cars.  its a clear sheath.  trace it back to the source and then extend it as needed to get to the #12 fuse and plug it in there.

[chadley]

Can you please elaborate on the resistor wire? I'm not sure I follow you...

[Stevenc22]

The wire powering the coil is a special resistance wire. Its mixed in with the emissions wiring. You need it unless you switch to a blue coil.

The diagram you posted is for the vacuum lines not the electrical wiring so it doesn't show the resistance wire.

The diagram you posted is for the vacuum lines not the electrical wiring so it doesn't show the resistance wire.

[chadley]

Thank you. I have a blue coil, but just removed the firewall components and was concerned. EGR valve tomorrow...