Motor = Jdm H22a Vtec
Chasis = 95 Accord EX

The motor right now is running on 3 cylinders. Compression has been checked across the board and the readings are 230-240. Cap and Rotor have been changed along with spark plug wires and spark plugs.

There is spark coming from the spark plug when we ground it, so I know that my ignition system is good. Injectors have been also changed and still not firing in #1.

Timing is dead on.

Any help is appreciated. Thanks

 

Fuel pump going out? The only thing I could think of is that there might not be enough pressure for all your injectors...

 

i would understand if number 4 wasnt firing but the fuel filter is located near number 1, thanks for the input

 

ttt, help me out guys.

 

up

 

ttt

 

Are the injectors new? Did you gap your plugs?

bump, help this guy out.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by accord2021 &raquo;</TD></TR><TR><TD CLASS="quote">Are the injectors new? Did you gap your plugs?

bump, help this guy out.</TD></TR></TABLE>

Injectors were used before on the f22b1, and worked perfectly. plugs have been gapped to specs.

help me out!!!

 

So how are you sure that it's not firing on 1 if the injectors and spark are good? Does it sound lopey or what?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by accord2021 &raquo;</TD></TR><TR><TD CLASS="quote">So how are you sure that it's not firing on 1 if the injectors and spark are good? Does it sound lopey or what?</TD></TR></TABLE>

if i pull out the spark plug wire on #1, it sounds the same. no noise change whatsoever. cars just sounds like its running on 3 cylinders.

 

Krud in the fuel rail perhaps? Did you change out the whole injector rail or just the injectors? I PM'd you about that valve cover for the F22 if you have it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tsjeff &raquo;</TD></TR><TR><TD CLASS="quote">

if i pull out the spark plug wire on #1, it sounds the same. no noise change whatsoever. cars just sounds like its running on 3 cylinders.</TD></TR></TABLE>

are you getting spark in that cylinder????? if so...check the spark plug, check for injector pulse, see if power is getting to the injetor with a noid light.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by accord2021 &raquo;</TD></TR><TR><TD CLASS="quote">Krud in the fuel rail perhaps? Did you change out the whole injector rail or just the injectors? I PM'd you about that valve cover for the F22 if you have it.</TD></TR></TABLE>

thats what im thinking. im going to change the rail. i swapped the injectors from the f22. sorry bro dont got the valve cover no more.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h2b_eg8 &raquo;</TD></TR><TR><TD CLASS="quote">

are you getting spark in that cylinder????? if so...check the spark plug, check for injector pulse, see if power is getting to the injetor with a noid light.

</TD></TR></TABLE>

i am getting spark. there is power getting to the injector.

 

Try holding a long shaft screwdriver on each fuel injector while the engine is running and put your ear to it to see if you can hear any difference between the injectors. You will be able to tell if the #1 injector is pulsing or not. It could be clogged as well if you get a week click or strained sound from the injector. try swapping out the injector.

Just putt'n the stethescope trick out there for ya....not sure

 

well, i know the injectors work. i had the h22a injectors on there and it was the same problem. then swapped it over to the f22 injectors and still the same problem. but i will also check if the injector is pulsing or not. Thanks

 

there's prob no power getting to the injector....run a wire from the pin in the ecu right to the injector...might be cut/shorted somewhere.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h2b_eg8 &raquo;</TD></TR><TR><TD CLASS="quote">there's prob no power getting to the injector....run a wire from the pin in the ecu right to the injector...might be cut/shorted somewhere.</TD></TR></TABLE>

well, i measured the voltage from the ecu to the injector and it is reading 12-13 volts.

 

you have compression in that cylinder?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tsjeff &raquo;</TD></TR><TR><TD CLASS="quote">

if i pull out the spark plug wire on #1, it sounds the same. no noise change whatsoever. cars just sounds like its running on 3 cylinders.</TD></TR></TABLE>

Is there a noise change when you pull out the other plugs individualy?

I'm at a loss here, you have compression in all cylinders, there is spark, and you say that all the injectors are working.....ya got me on this one!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tsjeff &raquo;</TD></TR><TR><TD CLASS="quote">

well, i measured the voltage from the ecu to the injector and it is reading 12-13 volts. </TD></TR></TABLE>

take a test light, start the car and remove cylinder 1 injector clip...see if there is pulsation...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h2b_eg8 &raquo;</TD></TR><TR><TD CLASS="quote">you have compression in that cylinder?</TD></TR></TABLE>

there is compression is cylinder #1. its reading about 240 psi.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GhostAccord &raquo;</TD></TR><TR><TD CLASS="quote">

Is there a noise change when you pull out the other plugs individualy?

I'm at a loss here, you have compression in all cylinders, there is spark, and you say that all the injectors are working.....ya got me on this one!</TD></TR></TABLE>

no noise change whatsoever.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h2b_eg8 &raquo;</TD></TR><TR><TD CLASS="quote">

take a test light, start the car and remove cylinder 1 injector clip...see if there is pulsation... </TD></TR></TABLE>

thats the next thing im going to do. just pulled out the fuel rail today, looks clean in there.

 

check injector pulse...cant be nothing else..

 

i had the same problem and it was my fuel rail.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by japspecb7 &raquo;</TD></TR><TR><TD CLASS="quote">i had the same problem and it was my fuel rail.</TD></TR></TABLE>

checked the rail. its was clean as a whistle.

worked on it today. so timing is good. its getting fuel. its getting spark. its getting air. still cylinder #1 is not firing. were guessing its the icm in the dizzy. ill keep you guys updated.