240sx sr20 swap WTF???

[xxmisfits1]

So The car has power everywhere.. but still will not crank. If we jump the starter the fuel pump begins to prime, but once we stop the fuel pump begins to prime again ... Is there anything that you can guys can point me to, so i can get this hoe started. Cause it feeling like im running in circles with this project.... Just any help will be appreciated

[blkvrtswp]

Fuel pump should turn on for 5 seconds, then if the ECU does not see CAS signal indicating engine rotation, the fuel pump is shut off.

If the fuel pump is not coming on for 5 seconds when the key goes from off to start or run, something is likely up with the main power or grounds to the ECU.

Hope that helps, good luck!

[xxmisfits1]

Well ending up finding a bad ground made a new one grounding the engine. It Cranks but no start, this car is the biggest pain..

[dohmann777]

ok i know i may get flamed for this but realize im am just trying to help its always the small stuff i missed on alot of my honda mazda and mitsu swaps like grounds for the engine to chasis or the coils and or ignition coils werent creating enough power basic maintaince stuff was wrong clogged fuel filters pin hole found in fuel line not making enough pressure major vacume leak my old miata wouldnt start when i did a 1.8 swap because a tb vacume line was unhooked i spent days trying to figure it out most of the time its dumb stuff cause were so fixated on the whole project and the worst case scinario comes to mind just something to think about i suppose

[duffman1278]

Check the electrical connections to the starter as well as the electrical on the clutch maybe sensor because it may think that the clutch is not engaged when you attempt to crank the motor thereby no starter.

[xxmisfits1]

duff, the switch for the clutch wasn't connected so now i can crank it from the key thanks. but still nothing its just slowly cranking now. I'm swapping batteries sense Ive got a warranty on it. See How it goes from there!! Thanks for the help so far!