316i 1990 m40 swapped m20 - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 07-31-2012, 01:09 AM
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316i 1990 m40 swapped m20

i am currently new to this forum but would like to know what wires needed to be spliced to get my e30 from cranking status to actually starting. seems that the c101 pins are not matching up.

thanks
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#2 (permalink) Old 07-31-2012, 02:39 AM
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Welcome to Bimmerwerkz.

If the car cranks, then it might not be a wiring issue.


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#3 (permalink) Old 07-31-2012, 08:39 PM
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no signal at the coil and no spark at the plugs. changed the coil and spark plugs are good just need to know if someone has done the swap before and if they know what wires go to where from my m20 engine harness to my chassis harness.
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#4 (permalink) Old 08-07-2012, 12:18 PM
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Quote:
Originally Posted by hyd3official View Post
no signal at the coil and no spark at the plugs. changed the coil and spark plugs are good just need to know if someone has done the swap before and if they know what wires go to where from my m20 engine harness to my chassis harness.
Did you put an M20 ECU in?? Easiest way. Because the M40 has coil packs, and the m20 has the single coil. Im pretty sure the M20 ECU fits right in too.
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