Combustion Contraption

Rundown of the setup

85x89 B
Hondata S200 - P28 (OBD1 obviously)
No wiring was changed since the old 1.8 was in the car.

Spark is present, and mechanical timing is good. I added some fuel into the cylinders manually, and she fired to life, and died immediately. So i was pointed in the direction of the injectors. With the key in the "ON" position, i got battery voltage across all 4. While cranking, on average they dropped to around 9 volts. So i have a 3v voltage drop. Im not sure what spec is.

I have 40psi at the rail, and i hear the pump priming with the key in the "ON" position. The check engine light light comes on, and turns off in sequence with the pump priming, just like its supposed to, and i can hear the main relay clicking.

Its cold outside and im getting grumpy, so i headed in. I like building engines, i dont like troubleshooting.

Any help would be appreciated.

Combustion Contraption

Bump

2point2

does the engine 'try' to start at all?

Combustion Contraption

No it doesnt even sputter.

Except when i manually added fuel to the cylinders. fired up real quick, then immediately died (obviously)

Turbogixxer

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Combustion Contraption &raquo;</TD></TR><TR><TD CLASS="quote">No it doesnt even sputter.

Except when i manually added fuel to the cylinders. fired up real quick, then immediately died (obviously)
</TD></TR></TABLE>

How long has the battery been sitting?

I had a car that cranked good, but did not have enough to power the injectors. Charge the battery and see if it does it. Plus, you stated it was cold, so the battery does not like it.

Combustion Contraption

I had charged it for 4 and a half hours the previous night. it sounded good and strong.

deryck324

bump cuz i have the same problem

2point2

so nothing has changed from the last setup other than the displacement?

FIACV? TB? What chassis is this?

you need to crank the motor for a while and pull a plug to be 100% sure on if there is fuel getting into the chamber

Combustion Contraption

Correct, nothing has changed other than displacement.

The car was sitting since march until a few days ago, so i charged the battery the other night.

The IACV is plugged in but is not physically connected to the engine, im running TWM ITB's. I pulled all plugs after cranking it a while last night, to pour fuel into the cylinders, and all 4 were bone dry.

NHswaps13203

do you have a "noid light" not sure if that is how its spelt?

oneslowstd

To me it sounds like a fuel pump or filter problem! You did say that you were getting pressure to the rail? This may sound stupid but try tapping softly with a rubber malet underneath the tank???? Ive seen it work before, its worth a shot. Good luck man

2point2

Welp, I'm stumped lol.

you have psi at the rail
your injectors appear to be 'firing'
your main relay/fuel pump is doing it's thing.
The setup is the same as it was + some displacement
?The car is originally obd1?

... and there's no fuel reaching the C.C. There's no way that all 4 injectors have suddenly failed.

Combustion Contraption

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by oneslowstd &raquo;</TD></TR><TR><TD CLASS="quote">To me it sounds like a fuel pump or filter problem! You did say that you were getting pressure to the rail? This may sound stupid but try tapping softly with a rubber malet underneath the tank???? Ive seen it work before, its worth a shot. Good luck man </TD></TR></TABLE>

Pump is priming. Maintains a constant 35psi at the filter. Cracked fitting on the fuel rail loose and fuel spilt out, so its making it from the filter to the rail.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H22EHSI &raquo;</TD></TR><TR><TD CLASS="quote">do you have a "noid light" not sure if that is how its spelt?</TD></TR></TABLE>

Just picked one up today, testing it in the morning.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2point2 &raquo;</TD></TR><TR><TD CLASS="quote">Welp, I'm stumped lol.

you have psi at the rail
your injectors appear to be 'firing'
your main relay/fuel pump is doing it's thing.
The setup is the same as it was + some displacement
?The car is originally obd1?

... and there's no fuel reaching the C.C. There's no way that all 4 injectors have suddenly failed.

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

Car originally was, and still is OBD1, still using the VX harness as well, just modified a bit to run a 4 wire o2.

Thats how i feel. If the TDC sensor inside the dist. is busted, i wonder if i would still get spark, as the ignitor and coil are fine. But as far as i can tell, the injectors are triggered off the TDC sensor.

2point2

swaping with someone else's dist can rule out a lot of things at the same time.

Combustion Contraption

Yeah ive been trying to get ahold of one.

I tried the 'noid' right now. nothing. the injectors arent firing at all.

Turbogixxer

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Combustion Contraption &raquo;</TD></TR><TR><TD CLASS="quote">Yeah ive been trying to get ahold of one.

I tried the 'noid' right now. nothing. the injectors arent firing at all.</TD></TR></TABLE>

Sounds like a disrtibutor

Combustion Contraption

Swapped out the ECU with a known good one. same thing.

I ohm'ed out the TDC/Crank sensor inside the distributor, and it is within spec. I dont think its the ignitor or coil because then i wouldnt be getting no spark.

I also checked the injector circuit on the ecu side, everything looks good.

Turbogixxer

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Combustion Contraption &raquo;</TD></TR><TR><TD CLASS="quote">Swapped out the ECU with a known good one. same thing.

I ohm'ed out the TDC/Crank sensor inside the distributor, and it is within spec. I dont think its the ignitor or coil because then i wouldnt be getting no spark.

I also checked the injector circuit on the ecu side, everything looks good.</TD></TR></TABLE>

I had the same problem recently, someone messed with the distributor wiring. It would run on carb clean (thus it was getting spark and correct timing), but it would not spray fuel because it was getting the wrong signal from the distributor. Of course, all the sensors were within spec.

Combustion Contraption

well, add this to the list of things gone wrong.

I found one of the main connectors on the lift side harness undone it was tucked under the battery where i couldnt see, so i plugged it in and i thought
'well that was it' turned the key to the 'ON' position ready to prime it and... no fuel pressure.

high_revs

fuel pressure regulator? we did a bottom end swap from a b16 to a b20 last year and then all of the sudden car had no fuel pressure...ended up being the regulator...

do you still have no injector pulse?

Combustion Contraption

Well i still cant explain the sudden loss of fuel pressure, but i took a break, went inside, came back out, checked all fuses. and she primed.

I turned the key, she fired right up. Moral of the story?

DONT HIDE CONNECTORS UNDER THE BATTERY.

high_revs

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Combustion Contraption &raquo;</TD></TR><TR><TD CLASS="quote">Well i still cant explain the sudden loss of fuel pressure, but i took a break, went inside, came back out, checked all fuses. and she primed.

I turned the key, she fired right up. Moral of the story?

DONT HIDE CONNECTORS UNDER THE BATTERY.</TD></TR></TABLE>

happened to me when i first did my h22 swap in my bubble....for some reason kept on throwing a map code, i tried different sensors, checked connections, vaccum at the port and everything...ended up being one of the plugs looked like it was connected all the way...when i went to make sure one of them clicked and locked and never had the problem again....f*cked with my head for 2 weeks lol

2point2

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Combustion Contraption &raquo;</TD></TR><TR><TD CLASS="quote">DONT HIDE CONNECTORS UNDER THE BATTERY.</TD></TR></TABLE>