24v no start? What was it?

[NickL]

Had no relays in my harness haha. Don't know how I missed it.

[E30DK]

Problem: Weak Crank no spark

Solution: Water and oil residue in spark plug holes (I didnt pull the engine so i assume thats how it got there) and most importantly GROUNDS GROUNDS GROUNDS. Clean every single on e you can find and then clean em again!!

[hfabricius]

Problem: No fuel pressure regulator on my fuel rail (95 325i)

Solution: Swap out for one with an FPR. Works like a charm!

[Tico Frank]

Problem: Spark, Fuel but no injector pulse

Reason: My engine was a 95 with no Fuel pressure regulator on the fuel rail

Solution: Replace fuel rail with one that has an FPR

[drummerchubbs]

This is a great thread! I have an auto harness so I'm sure this thread will help me trouble shoot. :)

[Pl3wA]

Problem: strong crank, good fuel, good spark, no start. Not even a burble. Megasquirt ecu. Will try everything on this thread

[Fusion]

Fuel pump relay died but was measuring main relay.
I recommend buying the the main relays (main power, f pump, O2 sensor) new.
They're only a couple bucks.