Redtop issues AGAIN

[vocationalzero]

92 redtop in a 92 s13. FMIC otherwise bone stock motor. My injectors are not firing at all. They are good, tested them. Wiring is good, all the connections are secure. I used the frsport.com wiring diagram letter for letter. But I cannot figure out why. The ECU throws code 55, the all clear. New/used MAF that works. What happens is fuel makes it to the rail just doesn't make it out the injectors. If you pinch the hoses (return/feed lines) between your fingers you can feel the fuel going through the lines. Anyone got any ideas why it won't fire???

[duffman1278]

Try taking out the CAS and spinning it by hand, then listen to see if you hear the injectors make a *click* as you spin the gear on the CAS.

If it doesn't, then recheck your wiring.

[bruinbear714]

92 redtop in a 92 s13. FMIC otherwise bone stock motor. My injectors are not firing at all. They are good, tested them. Wiring is good, all the connections are secure. I used the frsport.com wiring diagram letter for letter. But I cannot figure out why. The ECU throws code 55, the all clear. New/used MAF that works. What happens is fuel makes it to the rail just doesn't make it out the injectors. If you pinch the hoses (return/feed lines) between your fingers you can feel the fuel going through the lines. Anyone got any ideas why it won't fire???

Do the injectors have 12V on the wires? The ECU pulls one of the injector wires to ground to inject fuel for each injector. Either the ECU injector drivers are fried, or the injectors are not getting +12V .

[SpeedRacer1]

Before doing anything too crazy just swap the fuel lines, you may have them reversed.

[vocationalzero]

CAS is good already tried that.Injectors are getting 12V, already check that.Fuel lines aren't backwards, first thing I checked .I took a noid light set to the injector harnesses and they don't light up which means it's not getting the pulse signal from the ecu. So would that BE the ecu or some other piece involved in the fuel system?Cause I can put starting fluid in and the car runs with no problem which leads me to think the timing is fine.Sorry, forgot to mention I had already tried all those suggestions in my first post. I have been messing with this for over a month and can't seem to find it. Plus I don't have anyone I can borrow parts from to see if it works, I have to buy everything and that gets expensive real fast.

I hard wired the injectors with just a quick touch and each of em clicked.

[vocationalzero]

HAHAHA! GREAT! now my fuel pump decided to stop priming out of the blue.Tried to start it, it primed. Shut it off and tried again and nothing...

[rc1honda]

I waa thinking it could be a fuel pressure problem, if not the ecu. Well now that your pump craped out it could of been that all along. Check fuel pressure and the wiring loom on the ecu.

[vocationalzero]

It's a brand new walbro 255. That's why I'm confused.