Hi guys, my car has struggled to start almost as long as i can remember, but it got worse after i installed an fd fuel pump, and replaced fuel filter. Some have said it could just be leaky injectors, others have suggested possibly low fuel pressure...
I know our cars thrive on fuel so how should i go about making sure the fuel system is 100% and i'm getting plenty of fuel?

For starters im planning on sending my primaries to witchhunter to be flowed and cleaned then replacing my secondaries with 720cc injectors. I was also considering replacing my fuel rail with possibly some sort of upgraded fuel rail to make sure the Fuel Dampener is good and adding a fuel pressure regulator.

Lastly i was considering upgrading to a walbro (considering the idea that the used FD pump might not be 100%)

Any thoughts or other ideas?

 

Fuel Pressure Testing Gauge Set.... It will give you all the answers you need.

 

Doesn't take much fuel to start. Such problems are more likely to be caused by too much fuel than too little. Leaky injectors are a good place to start, fouled or toasted plugs don't help either, and let's not forget everyone s friend...low compression

 

Well, knock on wood I'm hoping its just the leaky injectors. The compression should be good. It's a JDM S5 swap (under 50k) miles. The compression tested good when it was installed. Only about 5k miles put on it since.