b16 No injector pulse
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b16 No injector pulse
OK so i have done my research and from what i found in other threads nothing has worked. i have a 2000 si and i just recently got the motor in it. i have a b16 all obd2 with an obd2b engine harness to a p28 and im not getting and pulse from the injectors. I am getting voltage to the injectors but they arent grounding while cranking. ive cleaned up all my grounds over and over again including the one on the tstat housing. its a known good ecu and my main realy is in good working order as well. Any help is greatly appreciated.
#4
Re: b16 No injector pulse
Though you don't realize it, the two ECU terminals I mentioned are grounds critical for the fuel injectors. The tests measure whether the terminals provide the necessary grounds.
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#18
Re: b16 No injector pulse
Do all 4 injectors click and pulse fuel if you ground each injector ground wire to the engine?
Are all 4 injector ground wires properly pinned to the ECU?
I also just noticed that I gave you OBD2b pin terminals to test for ground. The OBD1 terminals to test in P28 ECU connector A are A23 and A24. Post the Ohm readings.
Are all 4 injector ground wires properly pinned to the ECU?
I also just noticed that I gave you OBD2b pin terminals to test for ground. The OBD1 terminals to test in P28 ECU connector A are A23 and A24. Post the Ohm readings.
Last edited by Former User; 05-15-2012 at 10:58 AM.
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Re: b16 No injector pulse
When I ground the injectors with my power probe they spray fuel and I have an Obd2b engine harness to a jumper harness then the p28. I just bought a virgin p28 and still nothin saw the ecu fire up a shop car.
#20
Re: b16 No injector pulse
Unplug ECU connector A, touch one probe to terminal A23 or A24 in the connector and the other to the metal frame under the dash. Do you measure 100 Ohms or less at both A23 and A24?
#25
Re: b16 No injector pulse
Do the same tests for ECU connector terminals A26 and B2.
Then turn the key to ON(II) and test whether ECU connector terminals A25 and B1 have battery voltage.
Also, what wire colors do you see at ECU connector terminals A1, A2, A3, and A5?
Then turn the key to ON(II) and test whether ECU connector terminals A25 and B1 have battery voltage.
Also, what wire colors do you see at ECU connector terminals A1, A2, A3, and A5?