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Old 03-01-2014, 02:29 PM   #1
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96 maxima no pulse from injectors

I'm getting spark. Got power at injectors but no pulse. Pump primes. All three can crank sensors new. I'm lost any input? Security light stay off when key in.
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Old 03-01-2014, 02:34 PM   #2
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The body control module unplugged?
Lil black box under radio can cause that.
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Old 03-01-2014, 02:44 PM   #3
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Its plugged in I wiggled it around same issue. I check every fuse swapped relays around. Checked grounds. I'm lost..
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Old 03-01-2014, 10:09 PM   #4
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The 96 doesn't have NATS so the security light doesn't really mean anything. The alarm system will disable the starter. I never heard of the pre-Nats cars disabling the injectors.

Try disconnecting the battery and resetting the ECU, along with removing the connector from the ECU and re-installing it.

You could try checking wire continuity between the ECU and injectors.
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Old 03-01-2014, 10:12 PM   #5
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Camshaft position sensor for no injector pulse issues, crankshaft position sensor for no spark issues.
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Old 03-01-2014, 10:50 PM   #6
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also theres grey little box right next to maf sensor that will say unisia jecs in big letters and that is primarily for the fuel injectors. If you unplug it the car will not start and will stall if you unplug it while it runs. Thats like a control module for the injectors.
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Old 03-02-2014, 07:12 AM   #7
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Put a can sensor out a running car no go..battery was off too. I'll try disconnecting ecu and put back.


Thanks guys any more suggestions would helpa bunch.
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Old 03-02-2014, 05:56 PM   #8
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Camshaft position sensor for no injector pulse issues, crankshaft position sensor for no spark issues.
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Old 03-03-2014, 10:36 AM   #9
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Watching app it turns over n reads 250rpm fuel pump works. Power to injectors and coils but no spark or fuel now....ecu? Can I put a 95 ecu in it or does it need to be programmed?
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Old 03-03-2014, 10:37 AM   #10
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Even added a 0gauge ground by crank sensor
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Old 03-03-2014, 01:37 PM   #11
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I can disconnect sensors n still doesn't throw codes. So I bought a new ecu out a 96 i30 and now my scanner won't even connect to computer or recognise it....whats going on?
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Old 03-03-2014, 03:15 PM   #12
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Got it to read. Ecu still didn't fix car. The connector to ecu has been sliced into so about to burn car.
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Old 03-03-2014, 03:15 PM
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