Engine gets ignition, no fuel.

[triggrhaapi]

This thing is really starting to make me mad, here's the latest hitch:

After figuring out that I didn't have the correct chip (Turner 4130-3000 stock S50 chip instead of 4130-3400 Stock S50 EWS Delete) and getting a correct one, I reached a new hitch. Despite now getting ignition, as proven by spraying starter fluid into the intake manifold and getting it to cough and turn over running on the starter fluid, we are not getting any power to either the O2 sensor heater relay or the fuel pump relay. On top of that, when we manually run 12v to the fuel pump directly, and try to start, we still get nothing, I can only assume from that that my injectors aren't firing.

What the F%&* is going on here?

Possible causes I can think of are as follows:

1. Bad engine harness
2. Bad ECU (but why would I get good ignition?)
3. Poorly done aftermarket alarm system install (but the M20 ran just fine)

[Mr.SWISS]

This thing is really starting to make me mad, here's the latest hitch:

After figuring out that I didn't have the correct chip (Turner 4130-3000 stock S50 chip instead of 4130-3400 Stock S50 EWS Delete) and getting a correct one, I reached a new hitch. Despite now getting ignition, as proven by spraying starter fluid into the intake manifold and getting it to cough and turn over running on the starter fluid, we are not getting any power to either the O2 sensor heater relay or the fuel pump relay. On top of that, when we manually run 12v to the fuel pump directly, and try to start, we still get nothing, I can only assume from that that my injectors aren't firing.

What the F%&* is going on here?

Possible causes I can think of are as follows:

1. Bad engine harness
2. Bad ECU (but why would I get good ignition?)
3. Poorly done aftermarket alarm system install (but the M20 ran just fine)

Wires on your battery tray are mixed up. Peel back the insulation and check the colors, and then check to see if the wires are hot where you have them hooked up to.

[triggrhaapi]

Wires on your battery tray are mixed up. Peel back the insulation and check the colors, and then check to see if the wires are hot where you have them hooked up to.

There are only two connections. One is for the car harness going into the fuse/relay box and one is for the engine harness. The car harness has a ground connection, the car harness does not. Engine turns over and gets ignition.

[Adrian_Visser]

by looking at the wiring diaram it looks like somethin to do with the ecm relay but if it wasnt workin the whole ecu wouldnt work an no ignition either hmm interesting. do you have a wiring diagram to look at? check this site out

http://wedophones.com/BMWManualsLead.htm

try it out youll have to compare what you done for the install though cuz shit'll be a lil diferent i guess

[Mr.SWISS]

This is a photo FredK posted for me when I was having trouble getting mine to start. Did you make the wiring adapter or buy the one from Treehouse?
In this pic the thicker wire labled B is ground, A is 12v+

[triggrhaapi]

Hmm I'll look at my wiring when I get home.

[triggrhaapi]

That was it, I hooked that up and bam! it started. Not even a hesitation, it just went.

My car is going to be wearing a R3vlimited sticker.

[gotKRAUT]

That was it, I hooked that up and bam! it started. Not even a hesitation, it just went.

My car is going to be wearing a R3vlimited sticker.

haha admin of bimmerwerkz.com is going to rep a r3v sticker... :P

[FredK]

That was it, I hooked that up and bam! it started. Not even a hesitation, it just went.

FIRE IN THE HOLE!

Yep, it sure is a nice feeling when a car fires up. Even better when it idles steadily!

[Mr.SWISS]

Even better when it idles steadily!

Uh yea...
Still waiting for that feeling.....

That was it, I hooked that up and bam! it started. Not even a hesitation, it just went.

My car is going to be wearing a R3vlimited sticker.

*SWISS pops colla*

[triggrhaapi]

Haha it won't idle steadily until the midpipe and cat back are on.

[PiercedE30]

get us vids of it as it sits

[triggrhaapi]

get us vids of it as it sits

I'll see what I can do. It's LOUD.

[Mr.SWISS]

Vid*cough cough*
And I think you owe me a beer. :p

[FredK]

I think so too. Mr. Swiss where's MY beer? J/k!