hello every one

I have a eBay turbo set up in my 95 Miata
setup :
yellow RX 8 injectors
fuel pump 200
BMM,ECU (rus efi)

so the problem I have the car starts fine on a cold start but it seems to have little power whenever the car is up to temp. For example, I drive around for 15-20 minutes. Then I go to turn the car on it seems to struggle I go to turn the car on.and it doesn’t turn on​​​​​​, now I don’t drive it everyday jus every so often I take it for a spin but I have to wait like an hour before I get to leave because it only starts when the engine is cool

I got my car tuned in October now I know temperature has a big role when it comes to tuning, as of now, my AFR‘s are reading as following
Idle 9-10
When I give it throttle straight 9’s
lettinh off throttle 14-17

 

To start, post your tune and a log of the concern occurring.

Right off the bat, the information you’ve given indicates multiple things in your tune are whack. 9-10AFR at idle is way too rich. Maximum, you should be in the low-11’s at full boost.

You said it goes 9-10AFR when you’re on throttle. Can you elaborate on that? Anytime you’re on throttle or what specific conditions?

Again, a tune and log are the only things that will keep us from guessing.

 

I would clean and re-tighten all grounds and verify none are missing.

I would then ensure the timing belt hasn't skipped a tooth.

Then I would take a log of it running cold, then one of it running hot and then attempting to restart it hot. Post those and the tune file.

 

new fuel pump after tuning? stock FPR?