No Click, No Crank, No Start.
#26
ECU is good so that is ruled out.
One thing I noticed is when the key is in the ignition but not turned at all, the security light flashes on the center console along with the key light. Both flash constantly. Starting to think the whole issue is somewhere related to the security system. I havent had time to mess with it but would appreciate any other guesses. If not, looks like the engine is coming back out and it will be for sale as a roller next week.
One thing I noticed is when the key is in the ignition but not turned at all, the security light flashes on the center console along with the key light. Both flash constantly. Starting to think the whole issue is somewhere related to the security system. I havent had time to mess with it but would appreciate any other guesses. If not, looks like the engine is coming back out and it will be for sale as a roller next week.
#27
When key is on position but not cranking, Im getting around 2.5% Injector Duty Cycle on the commander. When cranking it goes to 14% injector duty cycle and falls down to around 5-6%. However, node light is not registering any signal. Engine to ECU harness was bought used from a shop with good reputation saying the harness came out of a running car.
Any other ideas as to why I am getting spark but no pulse to injectors?
So close yet so far, keep the ideas coming.
Any other ideas as to why I am getting spark but no pulse to injectors?
So close yet so far, keep the ideas coming.
Hope this helps,
Ryan
#28
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I fought this demon for over 2 years before I figured out the problem. I had a sneaking suspicion that when I replaced my flaky cpu #2 with one I bought off the forum is when it all started. It was also very intermittent, in fact, it didn't do it for a whole year. Then the problem returned right before I was set to take the car to AZ. I worked my way back from the ignition switch with a test light and when I touched the one wire coming out of cpu #2 I noticed it lit up slightly, but not fully. After bypassing the security relay, it's good to go now, but my security system is still flaky. When I lock my doors I have to lock, unlock, and lock again, or it will trip the alarm next time I unlock the drivers door. Have you tried jumping the solenoid? That's how I eliminated the starter as the culprit on mine, even though I already replaced it 2x (got a bad replacement the first time). I still have my old cpu #2 and I'm going to attempt to rebuild it.
#29
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Wanted to update everyone on this thread just in case someone else encounters a similar issue going forward.
I sent the car to the guys at Addicted Performance Unlimited for them to take a look at it with the arrival of our newborn child I was out of time. Zach and the guys there found the issue in under an hour.
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With these connectors backwards it was like the starter interlock was never bypassed. This caused the no click, no crank start. I'm embarrassed that I spent one day(literally) swapping parts around and never thought to check all the connectors over by the ecu(even when changing out multiple ecus). Oh well, I learned something new and hopefully this will help someone down the road.
Thanks again to Addicted Performance who had seen a similar situation before and fixed the issue very quickly.
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#30
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from this thread which is basically the same thing, and covers the entire starting system.
https://www.rx7club.com/3rd-generati...-872841/page1/
make sure this isn't happening....
from this thread which is basically the same thing, and covers the entire starting system...
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/one-possible-fix-click-click-start-problem-remove-oem-security-relay-872841/page1/
https://www.rx7club.com/3rd-generati...-872841/page1/
make sure this isn't happening....
from this thread which is basically the same thing, and covers the entire starting system...
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/one-possible-fix-click-click-start-problem-remove-oem-security-relay-872841/page1/
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