Hey guys, so the other morning I went to start my car but it wouldnt start. It cranks but wont turn over.

I've checked the ignition, I got spark, dizzy is fine im pretty sure, batteries good.

The fuel pump however is not priming, put key to ignition on and cant hear any priming. I disconnected the fuel line after the fuel filter to see. It does pump fuel but just one small pulse of fuel. Hardly enough to provide fuel for the engine.

Ive replaced the fuel pump, did not help. Checked fuses all good, using a multi meter there is 12 volts at the fuel pump fuse, tried my Main relay in my mates car and it started fine.

I measured the connector into the fuel pump and its getting no voltage, same for the fuel pump wire that goes into the main relay.

Im really stumped, it does seem that the fuel pump wire from the main relay has been tampered with as it is duck taped (peeled it off connection seems fine), maybe to do with my Hondata s300 P28 ecu. Im thinking its something to do with hondata but my experience with it is very little.

Does anyone know if hondata s300 could cause any issues with the fuel system. Any auto electricians who are free to come by and have a look. Willing to pay money! I'm desperate as i need the car by monday to get to work

Would be grateful for any advice! thanks!