swapped m20 from 86 to 84, no spark or fuel

[dreamchasin]

I just swapped everything and i mean everything from an 86 325e to a 84 325es. its not getting fuel or spark. last night i bought a test light and the ignition coil is getting a positive charge on the positive AND a positive charge where its supposed to be negative. took out my ECU and tested to see which holes in the plug gave a negative and which ones gave a positive. the test light i bought has 2 lights, RED for positive and GREEN for negative (ground obviously), on the one hole on the plug it was BRIGHT RED, and on the same hole we tested for a negative, the green light was on but fairly faint. wasnt bright but wasnt that dim.

anyone have suggestions? its greatly appreciated. i have both of these cars in the 2 car garage at my house and the step dad is getting pissed because they're still there after a week. Thanks!

[jlevie]

No fuel and no spark means that the DME isn't getting power or a start signal, or that the DME isn't seeing timing data from a rotating engine. Start by checking for power to the DME (unswitched and switched) and whether a start signal is present when the ignition is on. If those conditions are satisfied, the timing reference sensors become the prime suspect.

[dreamchasin]

Thanks, will check that tomorrow, and post results.

[dreamchasin]

ECU is grounded. I had it laying on the floor before, not knowing it needed to be bolted up. It is now getting power when key is on and off. how do i check for a start signal?

[dreamchasin]

http://www.bimmerfest.com/forums/showthread.php?t=395452

check that. it explains a little bit.