90 CRX Injectors not firing...but they have power
06-02-2006, 09:03 AM
#1
Honda-Tech Member
Thread Starter
90 CRX Injectors not firing...but they have power
I'm stumped on this one.
90 CRX, 94 GSR swap
Injectors have 12 volts at the plug but will not fire. I ran 12V to the plugs from the battery, and the injector will open. I have traced all the wiring back and to the ECU and all of the wiring is correct. When I try to turn it over, you cannot sense a pulse from the ECU. It just drops voltage slightly instead of pulsing. I've checked for shorts, tried it with a known good ECU...and now I'm at a loss.
Why would the ECU not send a pulse to the injector. It is a chipped P72 with a boomslang harness and VAFC prewired in. I tried my P28 from my car, and it still doesn't send a pulse, but on my car there is a clear and recognizable pulse from the ECU when you turn it over.
I have tried everything....any ideas are appreciated.
90 CRX, 94 GSR swap
Injectors have 12 volts at the plug but will not fire. I ran 12V to the plugs from the battery, and the injector will open. I have traced all the wiring back and to the ECU and all of the wiring is correct. When I try to turn it over, you cannot sense a pulse from the ECU. It just drops voltage slightly instead of pulsing. I've checked for shorts, tried it with a known good ECU...and now I'm at a loss.
Why would the ECU not send a pulse to the injector. It is a chipped P72 with a boomslang harness and VAFC prewired in. I tried my P28 from my car, and it still doesn't send a pulse, but on my car there is a clear and recognizable pulse from the ECU when you turn it over.
I have tried everything....any ideas are appreciated.
06-06-2006, 12:19 PM
#3
Honda-Tech Member
Thread Starter
Re: 90 CRX Injectors not firing...but they have power (HondaPartsHero)
Just an FYI for those of you that search this in the future, the problem was the Boomslang OBD0 to OBD1 harness. I have seen lots of people post problems about this harness and EVERY time Boomslang gets in the thread and says that nothing is wrong with their distributor wiring in the harness.
Well I am here to tell you that there is. It actually fried this kids ECU and cost 3 days of troubleshooting. So when Boomslang comes on here and says there is nothing wrong with the harness...that is complete BS. It is exactly what I have read in the other threads.
Hey Boomslang, when are you guys going to fix the problem instead of bullshitting everyone and trying to save face?
Well I am here to tell you that there is. It actually fried this kids ECU and cost 3 days of troubleshooting. So when Boomslang comes on here and says there is nothing wrong with the harness...that is complete BS. It is exactly what I have read in the other threads.
Hey Boomslang, when are you guys going to fix the problem instead of bullshitting everyone and trying to save face?
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