Hello everybody!
UPDATE:10/24/12
Here is what I used for my swap wiring.This is a chart I made for s5o x20 and c101 (late model) pinouts, wire colors and swap wiring information. It worked well for me!
I am in the middle of my first swap and I have some questions. Here is the details on what I have and whats going on.
I have a 1990 325i with an airbag. Originally it was an auto so maybe I didn't do some of the wiring correctly and that could be part of the problem.
For reference I followed this guide to do the manual swap wiring.
Its on post #3. The motor I am swapping in is a s50 and the zf tranny with the s50 harness and starter. The motor was running in another e30 before I pulled it. So i know all the components work. Only thing I did differently is, I decided to use a jumper harness I bought from a buddy of mine. I did a continuity test on the jumper harness and it all checks out. Also the motor wasnt in a I so it had the single fuel pump. I dont know how much of a difference that makes with the wiring but I figured I would put that out there.
Issue #1
Starter
When I try to crank it over the starter just free spins. It doesn't sound like it is engaging. I checked the battery it was fine slightly low but I jumped it to be sure. I also hooked the starter up the same way it was in the other car and should be correct, from what I have read on different threads on here. I heard of some people adding a second ground but I dont know how I feel about that, it should start up. I also checked and cleaned the grounds on the car. What else should i check?
Issue #2
No Fuel
The rail is not getting any fuel. I checked to make sure I had the fuel lines on correctly and checked both sides of the rail just in case. Both were dry. I also checked to make sure the injectors and plugs are getting power and they are. I pulled the fuse (# 11) for the pump and I am not getting power there. I can hear relays clicking. I did a continuity test on the jumper harness and it all checks out. The first pump is getting power and my gas gauge is working, but I don't think the secondary is getting power. I also tried adding a ground to the ecu as a test it didn't change anything. I checked and cleaned all of the grounds as well. Am I just over looking something simple here?
Thank you in advance!
UPDATE:10/24/12
Here is what I used for my swap wiring.This is a chart I made for s5o x20 and c101 (late model) pinouts, wire colors and swap wiring information. It worked well for me!
I am in the middle of my first swap and I have some questions. Here is the details on what I have and whats going on.
I have a 1990 325i with an airbag. Originally it was an auto so maybe I didn't do some of the wiring correctly and that could be part of the problem.
For reference I followed this guide to do the manual swap wiring.
Its on post #3. The motor I am swapping in is a s50 and the zf tranny with the s50 harness and starter. The motor was running in another e30 before I pulled it. So i know all the components work. Only thing I did differently is, I decided to use a jumper harness I bought from a buddy of mine. I did a continuity test on the jumper harness and it all checks out. Also the motor wasnt in a I so it had the single fuel pump. I dont know how much of a difference that makes with the wiring but I figured I would put that out there.
Issue #1
Starter
When I try to crank it over the starter just free spins. It doesn't sound like it is engaging. I checked the battery it was fine slightly low but I jumped it to be sure. I also hooked the starter up the same way it was in the other car and should be correct, from what I have read on different threads on here. I heard of some people adding a second ground but I dont know how I feel about that, it should start up. I also checked and cleaned the grounds on the car. What else should i check?
Issue #2
No Fuel
The rail is not getting any fuel. I checked to make sure I had the fuel lines on correctly and checked both sides of the rail just in case. Both were dry. I also checked to make sure the injectors and plugs are getting power and they are. I pulled the fuse (# 11) for the pump and I am not getting power there. I can hear relays clicking. I did a continuity test on the jumper harness and it all checks out. The first pump is getting power and my gas gauge is working, but I don't think the secondary is getting power. I also tried adding a ground to the ecu as a test it didn't change anything. I checked and cleaned all of the grounds as well. Am I just over looking something simple here?
Thank you in advance!
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