need help with wiring.......easy question

[e30_Drift_Spec]

hey there guys I need help, you know where the intake goes, before the air filter, the wire u connect to the sensor has 2, one for the intake and the other i dont know where it goes. I need to know where to connect the other one.

sorry for the question but when I bought the bmw it need a starter, and so i bought like that, all disassembled. thanks in regards.

[ck_taft325is]

What model and engine?

[e30_Drift_Spec]

its an 86' 325es M20

[e30_Drift_Spec]

but im guessing its the same for all m20's! I already looked for a connection but I nevver found nothing!

[e30_Drift_Spec]

bump
want to try and turn it on for the first time tonight!

[bejbis]

after the air filter, you have the mass air flow, thats a wider connector with i think 4 wires. then there is the idle air control valve, that has 2 wires. and there is the throttle position sensor, that one has 3 wires iirc. those are really the only 3 connectors that need to be plugged in after the air filter that are needed for the car to run proper.

[e30_Drift_Spec]

Thats the one I need, the throttle position sensor. I tryed looking but never found nothing. Where is the sensor located. I only know where the mass air flow one goes. thanks and seems like I really need help. Ill try searching right now for something. thanks for the help though.

[e30_Drift_Spec]

any pics please! I tryed searching google, then realoem.com but came up with nothing. Though my question is, If this is not connected, will this the car not to start. thanks in advance!

[scottinAZ]

tps is under the butterfly on the throttle body. Pics wont work for shit, because its on the bottom of the throttle body, where you cant see shit

[e30_Drift_Spec]

alright thanks, but it's not that one either i know which one u mean though, it's another connector that's wrapped with the same connector from the throttle position sensor.

[techterr]

barometric pressure sensor

You have an ETA and the extra plug is for the barometric sensor that is on the passenger side of the air filter box.... the latter I motors don't have this..
here is a schematic that shows it hooks up to the ecu

http://wedophones.com/Manuals/BMW/1986%20BMW%20325%20Electrical%20Troubleshooting%20Manual.pdf

and here is a pic of the one on my DD


and the realoem link

http://www.realoem.com/bmw/showparts.do?model=1254&mospid=47308&btnr=13_0337&hg=13&fg=15

it is part # 10 I think..
You don't have to have it hooked up for the car to run, it just supposedly fine tunes the fuel injection..
Good luck

[e30_Drift_Spec]

Thank u very much, u really helped me, exactly what I was looking for. Thanks for the help, I discovered later on that the reason the car did not start was because there is no spark! :( Another problem I have now! thanks foe the help though!