I did a search and couldn't find anything similar.

I just got done putting a Euro R engine in my friends 92 Prelude. Everything went pretty smooth, aside from converting to a 2 wire IAVC and the other little things about the Euro R. We went to start it and nothing happened. It just turns over and over and over. We diagnosed to problem to not getting power to the injectors.

The 12V wire (yellow/Black) that goes into the resistor box had a break in it. So we fixed the break, got 12v to the wire. We then left one spark plug out to make sure we were getting fuel into the cylinders. The car fired right up on only 3 cyls. We shut the car off and put the other spark plug back in and cranked it over again, but now we are not getting power to the injectors again. Checked continueity (sp) on the engine harness to the power wire, and it is fine. So now we are thinking it is in the car side that something is wrong.

Does anybody have any ideas on how to fix this?

 

anyone?

 

el bumparino... if you're not into the whole abrevity thing

 

Just for the sake of being ****, does it still fire back up on 3? Cuz' that would be an odd problem... I'm not even remotely qualified for this... But since nobody else is guessing... Maybe if it fires up on 3 but not 4, and it cranks, and your getting fuel... Then maybe something is shorting in the electrical path of the 4th plug? Will it fire up on 3 including the one that was not firing previously? Testing that would isolate an electrical problem that only relates to lighting off that cylinder...

Like I said, I'm not qualified for this... I'm not famialiar with the circuits, but I would figure that if you have 4 things that you have to plug into a circuit path, and the path works with the first 3 plugged in, but with all 4 suddenly everything fails... Then their must be a ground fault or something in #4 causes them all to fail... So I'm wondering if say you were able to crank of #1, #2, #3 could you do #2, #3, #4? This would let you know if you have an electrical issue of some sort that is directly related to #4...

 

I have not tried that yet, I will try it today when I get home, but I somehow don't think it will solve my problem of getting 12v power to the resistor box. But I will try anything. Thanks for the input.

Anybody else?

 

After working on it for a few hours last night, we narrowed the problem down. It seems that the ECU is taking in its 12v. But is not distributing it out through pin A25. Also, it's worth mentioning that when I jump the connector to check for a CEL, the 4WS light turns on and off.

Any suggestions yet?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMDB2 &raquo;</TD></TR><TR><TD CLASS="quote">After working on it for a few hours last night, we narrowed the problem down. It seems that the ECU is taking in its 12v. But is not distributing it out through pin A25. Also, it's worth mentioning that when I jump the connector to check for a CEL, the 4WS light turns on and off.

Any suggestions yet?</TD></TR></TABLE>

maybe your ecu is fried, im also not good at this stuff unless i can see it but if that ecu thing was happening to me thats what i would think. o and i have an obd1 p13 stock if you need it.

 

That's what I would think too, but we have tried 3 different ecu's, even known good ones. All of them are distributing the power back out of the ECU. We have tried a P13, P14 and a PT3 (?) from an 1990 Accord. All of these ecu's have the same pin-outs, so they should at least start the car, but none of them do.

Anybody good with Main Relay's? That is my next area of concentration.

 

C'mon, I know somebody's gotta have some ideas for me.

 

what injectors? euro-r injectors = no resistor box, although that doesn't neccesarily sound like it would solve your problem anyway... something to consider.

 

We have 95 JDM H22 injectors. I am gonna try a new Main Relay today, but I doubt that will help matters.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMDB2 &raquo;</TD></TR><TR><TD CLASS="quote">We have 95 JDM H22 injectors. I am gonna try a new Main Relay today, but I doubt that will help matters.</TD></TR></TABLE>

Are you running an OBD1 dizzy?

 

Yes, we have an obd1 dizzy with external coil

 

ok. So you have low impedance injectors. Does your injector wiring go through a resistor box? If not, check your fuses. One might be blown.

 

sounds like it could be ignition related. check your coil.

 

Yeah, I can read. First thing in your post "That goes into the resistor box"

My bad.

 

maybe the ecu is not grounded well enough.