Hey y’all bought my first g35 thinking it would be a decent car turned out the guy scammed me but it’s whatever just got completed with a engine swap and now the car has no spark no fuel and I’m unsure of what to do replaced cam and crank sensors and fuel pump! Any help is appreciated!

 

For starters are you throwing a check engine light?

When you are cranking the engine is the NATS security indicator to the left side of the dash flash or solid red?

Does the tach move when you're cranking the engine?

Did you keep all your existing sensors, throttle body, injectors, coil packs, etc or are you using the unknown ones that came with the used engine?

Did you hook up the engine bonding/grounding wire? It lands on the right side of the timing chain cover and the other end lands on the chassis directly below the coolant reservoir on a 2-hole lug.

 

Grounding wires are all hooked up no security lights I have spark now no fuel all parts used from swap not original car no idea if tach moves or not currently taking fuel line out to inspect for kinks

 

It's probably a bad sensor on the donor motor. In the future you want to always use ALL the sensors, injectors, throttle body, coil packs, everything from the EXISTING motor since you know they worked the last time that engine was running. Junkyard engine injectors are typically clogged up from sitting for a year or more, cam/crank sensors are picky to begin with and you have no clue what the donor has on it.

It introduces too many variables, start with the existing stuff that you know works. If you want to keep parts as spares and swap them out in the future once the engine is running that's fine.

Personally I'd just strip the intake manifold off and start swapping everything back over. Those metal gaskets are all reusable.

Something else I always do on a junkyard donor motor is put a new water pump, front and rear main seal, before the engine is installed. Little late for that now though.