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Well, perfectly timed and still not going unless in loop mode. Car starts and then just stops. Just replaced the fpr too and nope. Honestly I’m just tossing parts at this thing. Gonna check out the ignition system next….
Well, perfectly timed and still not going unless in loop mode. Car starts and then just stops. Just replaced the fpr too and nope. Honestly I’m just tossing parts at this thing. Gonna check out the ignition system next….
Well, perfectly timed and still not going unless in loop mode. Car starts and then just stops. Just replaced the fpr too and nope. Honestly I’m just tossing parts at this thing. Gonna check out the ignition system next….
Well, perfectly timed and still not going unless in loop mode. Car starts and then just stops. Just replaced the fpr too and nope. Honestly I’m just tossing parts at this thing. Gonna check out the ignition system next….
Well, perfectly timed and still not going unless in loop mode. Car starts and then just stops. Just replaced the fpr too and nope. Honestly I’m just tossing parts at this thing. Gonna check out the ignition system next….
Well, perfectly timed and still not going unless in loop mode. Car starts and then just stops. Just replaced the fpr too and nope. Honestly I’m just tossing parts at this thing. Gonna check out the ignition system next….
Well, perfectly timed and still not going unless in loop mode. Car starts and then just stops. Just replaced the fpr too and nope. Honestly I’m just tossing parts at this thing. Gonna check out the ignition system next….
Well, perfectly timed and still not going unless in loop mode. Car starts and then just stops. Just replaced the fpr too and nope. Honestly I’m just tossing parts at this thing. Gonna check out the ignition system next….

Well, perfectly timed and still not going unless in loop mode. Car starts and then just stops. Just replaced the fpr too and nope. Honestly I’m just tossing parts at this thing. Gonna check out the ignition system next….

ECU Trouble

rorytheandroid:

I am getting these stupid codes potentially stemming from OBD2a only issues. I ordered a cheap eBay P28 OBD1 with my B18C basemap loaded. Not my preference but I will convert it eventually to a hondata S300 V3 chip. In case anyone is interested I have a P73 for sale in a week if I clear up my codes, along with a obd2a - Obd1 jumper conversion too.

So this is my first DIY build and I’m almost there just can’t solve this last piece of the puzzle and neither can my mechanic… Here’s where I’m at

96’ Spec JDM B18C in a 91 CRX Si.

I was using the stock OBD2a ecu but recently acquired a chipped p28 with the 96 ITR basemap. Both ECUs would do the same thing when starting. The car would start run for no more than 2 seconds then die. If you tried to start it again the car would run for a fraction of the initial time it ran then die again almost immediately. 

With the map sensor unplugged the car starts and runs just extremely rich. I’ve searched all over for a solution and have found tons of similar stories on a bunch of different cars but never have found any conclusive solution.

The car won’t run long enough to through any codes at this point and the codes that the obd2a ecu threw were 20 and 41 but that was only when the MAP was unplugged so i couldn’t imagine those are steering me in the right direction considering no code pertaining to the MAP has popped up yet. 

The Kickers:
Tried multiple good MAP Sensors
Already replaced the O2 Sensor
I did this early on and have switched back and forth with both ECUs

When everything is hooked up correctly, car starts, tries to run and then dies. It will immediately die if i try and give it gas on the first attempt. 

IM Stumped and I’ve reached the ALL IN point on this one so I need to make it work.

Thanks in advance to any suggestions.

Test Drive

Today on the first test run I melted a portion of my hood plastic, gotta wrap my header i guess, and the car is running way to rich due to most like the dumb set of RC injectors that I used assuming all would be well. Converting back to ITR stock 240cc and splicing in stock clips to my harness for the time being. Will probably end up changing to injector dynamics in the future anyway. Other than that, I FUCKING LOVE IT. Not posting any more pics until phase 1 is complete.

Cleaning up nicely. Still taking too much time though. I am quitting Sanding the jambs for the day but I got the skirts hung, windows back in, door lock acuators installed, couple other things. Can’t wait til its a single color, even if its just an experiment with plastidip.
Cleaning up nicely. Still taking too much time though. I am quitting Sanding the jambs for the day but I got the skirts hung, windows back in, door lock acuators installed, couple other things. Can’t wait til its a single color, even if its just an experiment with plastidip.
Cleaning up nicely. Still taking too much time though. I am quitting Sanding the jambs for the day but I got the skirts hung, windows back in, door lock acuators installed, couple other things. Can’t wait til its a single color, even if its just an experiment with plastidip.
Cleaning up nicely. Still taking too much time though. I am quitting Sanding the jambs for the day but I got the skirts hung, windows back in, door lock acuators installed, couple other things. Can’t wait til its a single color, even if its just an experiment with plastidip.
Cleaning up nicely. Still taking too much time though. I am quitting Sanding the jambs for the day but I got the skirts hung, windows back in, door lock acuators installed, couple other things. Can’t wait til its a single color, even if its just an experiment with plastidip.
Cleaning up nicely. Still taking too much time though. I am quitting Sanding the jambs for the day but I got the skirts hung, windows back in, door lock acuators installed, couple other things. Can’t wait til its a single color, even if its just an experiment with plastidip.
Cleaning up nicely. Still taking too much time though. I am quitting Sanding the jambs for the day but I got the skirts hung, windows back in, door lock acuators installed, couple other things. Can’t wait til its a single color, even if its just an experiment with plastidip.
Cleaning up nicely. Still taking too much time though. I am quitting Sanding the jambs for the day but I got the skirts hung, windows back in, door lock acuators installed, couple other things. Can’t wait til its a single color, even if its just an experiment with plastidip.

Cleaning up nicely. Still taking too much time though. I am quitting Sanding the jambs for the day but I got the skirts hung, windows back in, door lock acuators installed, couple other things. Can’t wait til its a single color, even if its just an experiment with plastidip.

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