H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

ok so i swaped this into my 95 honda civic sedan the fuel pump primes I have spark also have fuel at the rail but the spark plugs are dry and I dont smell gas in the hole. i know the timing is right i did the belt and checked the compression 210 across the board. I dont know if the Intectors or plugged or what i used a test light I have power to the injectors and the dizzy i checked them with a test light. this is my first h series swap i need help please.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

Any CEL codes?

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

yeah its just solid. I have a p13 stock and a chipped p72 with s200 and they both stay solid when i jump the wire. idk if they are both bad or what? the only thing I have unpluged is the o2 sensor and egr. but i was gonna wait to put the bottom half of the header on so i could see if the engine ran first.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

So you are saying the CEL remains on steady both with and without the service connector jumped, right? If so, check the ECU A7, A8, A23, A24, A25, and B1 terminal connections and wires. Also check the ECU A26 and B2 ground connections and wires.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

you think it could be some kind of a grounding issue? ill check thoes when I get home thank you for all your help I hope one of thoes are the problem. why would someone get a solid check engine light?

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

CEL code 0 is when you have a solid CEL both with and without the service connector jumped. When the engine won't start, CEL code 0 generally means a problem with ECU power or ground, or a bad ECU.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

ok good good Info. I'll do a little trouble shooting when I get home and get back to you. thanks for your help.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

ok so i tested all the wires they all have power. the injectors have power to both sides? so I guess the ECU provides the ground? which its not doing because i pulled the rail off the intakemanifold and there is no gas squirting.. I also check the dizzy again for spark and still nothing. but its getting power to the 2 prong plug. but no spark?

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

its possible that the ECU is not grounding your injectors

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

Again, check ECU wires and terminals I mentioned earlier.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

I just have a test light at my disposal and I checked the wires that i could with that and they seemed to be getting power. I have no way to check grounds.. I did do a wire tuck tho and I dont think I forgot any grounds. does anyone have a digram for the major grounds that could be affecting this? but there is one wire I found that doesent seem to be connected its a green wire with a red stripe. I think its a data link conector wire idk but it has power to it but its not connected to the ecu.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

i had the same problem and i broke my head over it for about 2 days and at the end it was a freakin wire i forgot to wire up right.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

You need an inexpensive low impedance digital multimeter to check whether the ground wire terminals in the ECU connectors have continuity to body ground.

You may be able to purchase an adequate multimeter for $5-$10 at Harbor Freight Tools.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

Yeah I know man its been a pain in the ass I have been fighting this thing for the last 2 weeks with this wiring im about ready to un tuck it and put a stock harness back in. oh at harbor freight? thats great I didnt know they had them, I thought they were expensive. thank you you are always a big help I appricate it.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

did you find the problem? jus wondering.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

it had somthing to do with the chassis harness cuz I swapped it out and I have spark and fuel but I only in fuel in hole #1 and #4?

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

Do #2 and #3 plugs have voltage?

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

yeah they have power from the ignition to the injectors but not form the ecu and i tested it at the ecu and it has no power there to? but when I unplug the big plug that the injector wires go to on the ecu it has power at the ecu?

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

The ECU provides ground to the injector. Do #1 and #4 have voltage at the ECU connector? If you briefly ground each injector wire (#1, #2, #3, or #4) terminal in the unplugged ECU connector, do all injectors click?

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

#1 and #4? yes they have power at the ecu plug. i pulled the rail off the Intake manifold and primed the fuel and 1 and 4 were the only ones that sprayed.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

If #2 and #3 have power at the injector plug but not at the ECU plug, then the wires are broken or the injectors are bad.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

well they only have power from the yellow/black wire and not from the red and blue wires on the injector plugs.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

If you can swap the #1 and #2 injectors and #1 position still sprays but not #2, then there's a problem with the Red and Lt Blu wires.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

I havent had a chance to try it out but I will when i get home tonight its been a busy week at work. thanks for your help.

Re: H23A vtec swap in 95 civic sedan - no gas injected into cylinders
 

stupid question I don't know if this was already stated but did your first what fuel hose did you use?? and second did you have fuel spraying out or the fail, filter, or fuel hose its self? im having the same issue with my car and I think my injectors are clogged but I don't even know where to start checking