Messages

1

Engine + Driveline / Re: Rebuilt the motor in my '91 318is, cranks but won't start

« on: April 02, 2014, 06:44:10 PM »

Wazzu70,

You hit the nail on the head. The coils were swapped and I'm not sure how. We put it back together the way it came apart, but we must have done something. Thanks for the help gentleman. Need to tidy up a few other issues, but she'll be back on the road this weekend.

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Engine + Driveline / Re: Rebuilt the motor in my '91 318is, cranks but won't start

« on: March 30, 2014, 01:55:19 PM »

I will check everything mentioned so far on Monday. I'm hoping it's something simple like a wire that's disconnected or something. After going through all the trouble of rebuilding the motor from the crank up, it's a little disappointing that it won't run.

3

Engine + Driveline / Re: Rebuilt the motor in my '91 318is, cranks but won't start

« on: March 29, 2014, 06:37:32 PM »

The white main relay is installed. So if I'm not getting constant +12V on pin 26 what could cause that? Wiring issue or something else?

If you could get me that pin out, that would be awesome. The M42 and E30 are new to me, most of my BMW knowledge is E34's and E38's.

4

Engine + Driveline / Rebuilt the motor in my '91 318is, cranks but won't start

« on: March 29, 2014, 03:59:16 PM »

1991 318is. Motor was rebuilt from the bottom up. Rods, pistons, head reworked, new timing gear, the whole deal. Timed the car using the timing tool set.

The car now will crank, run for a second and shutoff. We are getting spark and fuel. Checked the fusible link in the back and it appears to be good. Swapped the relays on the firewall and didn't make a difference. Pulled the connector for the ECU and we are not finding any constant power with the key off. I tried searching and couldn't find a definitive answer on which pins should have constant power on them. Also I am not getting a CEL at all. Tried the stomp test and I'm not seeing anything. I don't believe my car has EWS since I have the digital OBC. Tried reading out both the cam sensor and crank sensor and they were reading like 0.987ohms which seemed wrong. Checked the injectors and they are pulsing. Car also has coil on plug conversion. Car ran good before the motor rebuild.

 Now I bought the car used and the engine had been swapped out before and let's just say the install was questionable. The car also sat for about a year before the motor got rebuilt and had some water leak into the drivers side from the door seal.

 What else can I check or am I missing?