I am trying to return a b18c to life. I have good battery power, good spark, fuel pressure in the fuel rail, and the will fire and run for a few seconds if i spray brake cleaner in the TB.

I have a feeling that the injectors are not pulsing, but dont know why or how to check. They are RC440's, if that matters.

Could the ECU be upset?

The car had some grounding issues when i started.

Could there be a blown fuse or something?

please help.

Edit: the injectors have power, the ecu (or something) is not allowing the ground pulses, if that describes it better.

SOLVED: the injector solenoids were stuck. I tapped them around the circumference with an allen wrench (fairly gently), and after applying 12v to the little terminals they returned to a more positive cycling open and closed. The car has started and run now (just for a few seconds, i have a leak squirting out of my fuel rail, i bet one of the o rings tore. )

 

Have the injectors cleaned and tested... or try a set of stock OE fuel injectors just to see if everything works.

 

thank you fro the response. Will do. Weird that not a single one would work

 

The injectors are all working. I tested them with power to the leads and they click happily. I hooked an oscilloscope to the connector plug and there are zero voltage pulses coming in, which is why the injectors are staying closed.

I will be sad if its an ecu issue, since those are expensive, and this one has a hondata s200 installed.

The ECU looks pretty good. Not like flooded or anything.

 

in the end you were correct!!. All 4 injectors were stuck closed. Now they work. Thank you!

 

There is no S200 dongle on the 3-pin datalog location... you have a CRomE or UberData program on the chip in your photo. Also, that ECU is a P28 and not a P72... a P72 would have an additional circuit board about 1/4 of the size of the ECU for the knock sensor... this would connect to the ECU main board via ribbon cable that attaches to the strip of solder points in the bottom right corner of your ECU photo above.

 

I stand 100% corrected. It totally is a P28. How could i be so confused?? Also i thought the blue box was an s200? It was in the car when i bought it.

 

Well, now we are even !!! I also stand corrected... I expected to see a S100 dongle on the white datalog 4-pin connector in your P28. Without it, I assumed that the programming on the chip would be from another program, not even considering that an external S200 or Stage system would be connected to the ECU by a 4-wire ribbon cable.