93 b18a1 into 91 dx hatch. injectors not firing?

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Old Feb 9, 2010 | 09:52 PM
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Default 93 b18a1 into 91 dx hatch. injectors not firing?

ok. i traded an ej1 coupe for this car. it came with a full jdm b16 sir swap. the only thing was it had a spun bearing/ i pulled the motor out with plans to rebuild but i came across a 93 integra ls for 150 dollars. i pulled the motor and replaced the headgasket, timing belt, im gasket, and a few other things and put the b16 trans on it and slammed it in the car. now the problem, the b16 harness burnt up with the previous owner so he has a dx harness converted to mpfi and its also wired for vtec. i am using b16 injectors, b16 dizzy, and b16 alternator. everything does like it should it turns over, makes compression, has spark, and has fuel all the way until it gets to the injectors then nothing. they arnt clogged and the work fine. i cant figure out why they arnt spraying. its also throwing some cel's that i havent got to read yet. can you guys help?
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Old Feb 10, 2010 | 04:31 AM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

bump before work.
any help?
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Old Feb 10, 2010 | 07:28 AM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

How do you know the injectors are fine,have you had them tested?
What ECU are you using?
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Old Feb 10, 2010 | 01:51 PM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

yes i had them tested and they came back fine. im using an obd0 pr3
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Old Feb 10, 2010 | 02:01 PM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

so i assume the dizzy is obd0 then as well? and i imagine the injectors are not obd1 so you do have the injector box hooked up right?
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Old Feb 10, 2010 | 02:09 PM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

yes the injectors and dizzy are obd0. do you mean the resistor box?
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Old Feb 11, 2010 | 11:28 AM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

have you checked that the main relay is setting the injectors off?
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Old Feb 11, 2010 | 11:36 AM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

bump if someone knows we are having the same problem with my lil bros crx
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Old Feb 11, 2010 | 12:22 PM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

First just check and see if you get power to the injectors, just like 2-3 volts, just look for any voltage. I had this problem before and the connections were a little dirty. If you find out the CEL's it can help, but it's probably just an injector code. Do you have an LS or a LS/VTEC?
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Old Feb 11, 2010 | 01:59 PM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

its just an ls right now, but i do have a vtec head. i might just completely convert the car to obd1 and just forget that ghetto harness.
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Old Feb 13, 2010 | 04:22 PM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

Why do you have a PR3 ecu? That for the B16, just get a cheap PR4 and it will probably fix it or at least make it run right when you do. Or swap the VTEC head on.
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Old Feb 13, 2010 | 05:55 PM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

resistor box should be at the firewall engine harness conector on the drivers side, it has a green 6 wire connector with 5 wires hooked up in it and has little fins on top of it, check if it is hooked up, also check your thermostat grounds
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Old Feb 13, 2010 | 10:15 PM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

Originally Posted by ZCHondaCRX91
First just check and see if you get power to the injectors, just like 2-3 volts, just look for any voltage
try this first
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Old Feb 14, 2010 | 05:31 AM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

Im thinking he has self saturating injectors.
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Old Feb 14, 2010 | 10:00 AM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

Im having the same issue, I have 12v on evry inj. with key on in #2 spot. Then when I try to start the car I get like 2-3v on the other pin as if the ecu is sending the pulse to the inj.
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Old Feb 14, 2010 | 03:20 PM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

if youre using the OBD0 injectors then you need to be using the resistor box, if you have been trying to use the OBD0 injectors without the box then you might have fried the computer.....read hondata's article
http://hondata.com/techlowohminjectors.html

with the box, you should get 2-3v with the ignition on
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Old Feb 14, 2010 | 08:22 PM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

you mean 2-3 ohms of resistance. not volts. big difference
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Old Feb 14, 2010 | 08:30 PM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

Originally Posted by D16SiHatch
you mean 2-3 ohms of resistance. not volts. big difference
yes! there should be 12v and 2-3 ohms
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Old Feb 15, 2010 | 06:10 AM
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Default Re: 93 b18a1 into 91 dx hatch. injectors not firing?

Yeop thats what I got with the resistor box with obd 0 injectors
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