Announcement
Collapse
No announcement yet.
S52 OBDII Wiring Kamasutra 2007
Collapse
X
-
No more e30s for me.
88 black BMW OBDII 332is dedicated track [sold]
88 BMW OBDII bronzit 332is [RIP 03/08]
91 BMW 325i [sold]
86 Corolla 'Ae86' HB 20v trd [sold]
http://youtube.com/watch?v=pTj7Hn9v5Rs
-
I always splice engine harnesses. Solder after splicing if you want, but never crimp.
The coolant temp sensor is one wire from the c101/x20 adapter. Use the "brown top" m20 temp sensor. If you have an OBD2 engine/head, you won't have a place to thread it into. The OBD1 heads had two temp sensors. One for the computer. One for the dash. Obd2 combined them so you need to either Tee the OBD2 and the M20, or tap the OBD2 head to get the M20 sensor in there. Sensor grounds through the head/engine so its just one wire from whatever pin i said above ; | Have fun.No more e30s for me.
88 black BMW OBDII 332is dedicated track [sold]
88 BMW OBDII bronzit 332is [RIP 03/08]
91 BMW 325i [sold]
86 Corolla 'Ae86' HB 20v trd [sold]
http://youtube.com/watch?v=pTj7Hn9v5Rs
Comment
-
Originally posted by etxxz View PostThe OBD1 heads had two temp sensors. One for the computer. One for the dash. Obd2 combined them so you need to either Tee the OBD2 and the M20, or tap the OBD2 head to get the M20 sensor in there. Sensor grounds through the head/engine so its just one wire from whatever pin i said above ; | Have fun.
Comment
-
huh unbeknownst to me. my s52 eventually granaded by a broken collet that dropped its valve so the replacement head was from an OBD1 e36. If it wasn't for that i wouldn't have ever had a water temp. Oil temp was good enough for me (via aftermarket electric gauges). Thanks for that bit of info.No more e30s for me.
88 black BMW OBDII 332is dedicated track [sold]
88 BMW OBDII bronzit 332is [RIP 03/08]
91 BMW 325i [sold]
86 Corolla 'Ae86' HB 20v trd [sold]
http://youtube.com/watch?v=pTj7Hn9v5Rs
Comment
-
Thus the picture i posted. You need to have BOTH sensors. You either need to tap the head, rethread the sensor, or you can buy mine ready to bolt in ;)
Check Us out on Facebook
Needing a harness adapter or wiring help? Check it out: also have 24v motor mounts, E30 M3 covers and E36 ECU mounts!
Full Product Line Tuning
OBD2 Tuning Available! OBD2 E36, S54 Swap, S62 Swap, etc: tuning@MarkertMotorWorks.com Dyno Thread
Comment
-
Originally posted by jotam3 View PostAlright, flame me for reviving an old ass thread, but does anyone happen to have ettxz's wiring diagram, or pics in the original post? I know he said someone PDF'd them in post 34, but that link is dead now too. Anyone happen to have these?
Comment
-
Well my laptop burnt a long time ago and i no longer have ANY of these files guys. Just tried digging in my old email accounts. Nada. Mammoth_e30 is the only forumner i know of that made a similar excel with the pinouts as i had. Sorry and hope that's enough lead.
Sold my last e30 sept 2012 and that was probably the last time i logged on r3v. I'm racing motorcycles now and if i ever get another track car i'll be on a e46 M3. So signing off again for a looong time,
-etxxzNo more e30s for me.
88 black BMW OBDII 332is dedicated track [sold]
88 BMW OBDII bronzit 332is [RIP 03/08]
91 BMW 325i [sold]
86 Corolla 'Ae86' HB 20v trd [sold]
http://youtube.com/watch?v=pTj7Hn9v5Rs
Comment
-
Since everyone is asking for OBD2 wiring diagrams, I'll share mine. Please use these as guides and verify all connections with the wiring diagrams for your year/car/engine!
First one is for a 1991 318is (M42) to a 1996 328is (M52). Please note there aren't built in connections for the oil level sensor on 318i cars. EWS wiring included if you need it.
91 318is (M42) to 96 328is (M52) OBD2 Wiring Diagram -318is M52 OBD2 Wiring Diagram
Second one is for a 1990 325i (M20) to a 1998 Z3M (S52). I have included diagrams for oil sensor wiring, EWS, and fuel pump relay (was located under the dash on Z3M cars). The Z3M S52 wiring has a few quirks that aren't present on the M3 S52's. Make sure to check the correct wiring diagrams for your engine/car/year.
90 325i (M20) to 98 Z3M (S52) OBD2 Wiring Diagram - 325i S52 OBD2 Wiring Diagram
PM me with any questions, I'm happy to help out. Please verify your connections by looking at wiring diagrams. I am putting these up as guides but they WILL differ from car to car. **I am not responsible for any damage to your car, engine, wiring harness, etc.**
Comment
Comment