I drive a 89 honda civic hatch dx

Well for starters . 300k OG miles amd OG d15b7 mpfi
just replaced transmission
So my hood latch broke thays another topic

It rained i had no hood i still drive my car

I replaces the main relay
I got a fuel pump from da9 integra
New rotar
no ignitor and all that inside the dizzy
But fuel pump kicks on
just no fuel pressure and i have spark

Just no fuel pressure to the motor

 

Do you hear the fuel pump run when you turn the key?

 

yes i do


But i also keep popping my ecu fuse under my dash i replaced all relays and yesterday. Although my fuel pump is from a 90-93 integra . goday i. Going to hit my local LKQ pick a part and go get a cuel pump from a 88-91 civic . does it HAVE to be a hatch or can ot be from a sedam as well?
when my ecu fuse doesnt pop my ecu throw code 4 and code ??? (Flashes 16times)

 

After resetting the ECU to clear the codes, do both codes return after cranking the engine for 30 seconds?

Replacing the fuel pump may solve the problem with the blown dash fuse and code 16. It's unlikely to solve code 4, if it repeats.

 

you hear the pump prime, but it doesn't build pressure?

Do you have gas in the tank?
Is fuel making it to the fuel filter?


If you have gas in the tank and you are not getting fuel at the filter then the pump isn't pumping (or isn't sitting in fuel to be able to pump)
Or, unlikely, you have a major clog in the line to the filter.

 

Bring your humor and politics to GDD.

 

Over 9,000 non-GDD posts!
I must think I know a thing or two about these cars.

 

Sorry. I know your many contributions in tech. Was just saying that I also like your GDD humor side.