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Lucan

M30B35 Swap Elec Issues.

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Looking for some advice on issues with my M30 swap:

Rundown:

M30B35 from a 199X 535i, G240 box, M3/S14 flywheel, M20 clutch and p/plate, M30 starter.

ECU bosch 179 red label

M30 engine loom.

Issues currently present;

1) Fuel pump does not prime when key turned to ACC position? Google search does not help, pump should prime AFAIK.

2) ICV does not hum in ACC key position? 

Edited by Lucan
Updat

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I cant remember exactly how the unloader relay circuit is wired, but if youve wired the starter through it accidentally that would make a relay race and cause it to jump in and out rapidly.

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That's possible, the green/black wire connecting to one of the starter spades does ground the unloader relay. May have that and ignition spades around the wrong way, hopefully a quick fix for one of the problems.

Tested my CPS and appears to be fine. Will rule that out for now.

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Updated 1st post.

New battery sorted rapid starter, slow crank issue. So engine turns over well.

Pump doesn't run while cranking or prime when first switched to ACC, does run when relay jumped.

No spark at plugs.

Tested 12v at coil 

Have swapped in known working main and pump relays

Have tested and swapped CPS

 

DME ???

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Dme either not getting powered up (main relay possibly?), or not getting crank signal (faulty cps or wired / plugged in wrong) . Or like you said sme is faulty  

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