I had an accident with my honda fit 2008 ,drove over a big rock at 100km/h so it broke the sump, bel housing and the radiator i got them replaced but the car is not starting it is just cranking but ot starting ,so what could this be? The check light keeps flashing if i switch it on ,we have tried to check the fuel supply and spark they all seem fine so now not sure what it could be

 

There isn't enough information for us to correctly diagnose this.

If a car won't start, it can be boiled down to a few things: insufficient fuel supply, insufficient air supply, or no spark. Any of these core issues could branch into a number of parts, such as the fuel pump or spark plugs. I've even heard rumors that if the battery grounding is knocked loose, it won't provide power.

If you are willing to take the time, these guys have put together some pretty comprehensive diagnostic guides that I've personally had success with

ChrisFix

Scotty Kilmer

If you want to post more details, you would have to do some of the diagnostics anyway. If you don't have enough time, it would be more efficient to take it to a shop.

 

Crankshaft sensor? I had one go on another car (not a Honda), and you can crank all day, but nothing happens!