Need help! OBD 0 no fuel pulse.

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Old Dec 28, 2007 | 09:26 AM
  #1  
JDM97EK's Avatar
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Default Need help! OBD 0 no fuel pulse.

I am trying to help a guy out. He has a 1990 CRX Si. It has a jdm OBD 0 B16. He tryed to hook up a MSD ignition (used, none the less) and now no start. I took everything back off and had no spark or injector pulse. I found that he messed up the wiring inside the distributer pretty good. I replaced the distributer with an obd 0 ls integra distributer (cut an arm off the distributer). now have spark but very intermittent injector pulse. I replaced the EFI relay and ECU still nothing. He mentioned converting to OBD 1. But I think that wont help his problem. anyone have this same problem? any ideas? Fuel pressure is 40 psi > good spark > compression 195 psi.
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Old Dec 28, 2007 | 12:40 PM
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Default Re: Need help! OBD 0 no fuel pulse. (JDM97EK)

any ideas out there?
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Old Dec 28, 2007 | 12:51 PM
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Default Re: Need help! OBD 0 no fuel pulse. (JDM97EK)

he must have messed up the wireing somewhere. try known good injectors.
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Old Dec 28, 2007 | 01:50 PM
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Default Re: Need help! OBD 0 no fuel pulse. (JDM97EK)

check his "alternator solenoid" fuse under the dash.
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Old Jan 1, 2008 | 06:51 PM
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Default Re: Need help! OBD 0 no fuel pulse. (B16CRXT)

All fuses are good and the injectors are fine as well. There is no power from the ecu to the injectors. I know this because I have a noid light hooked up to it and it is not flashing. Any one else with some ideas?
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Old Jan 2, 2008 | 09:16 AM
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Default Re: Need help! OBD 0 no fuel pulse. (JDM97EK)

Possible he fried the ecu with his bad wiring on the msd box. Check with a good known pr3 or pw0

If all fuses are good check the resistor box for injectors
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Old Jan 3, 2008 | 05:26 PM
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Default Re: Need help! OBD 0 no fuel pulse. (JDM97EK)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM97EK &raquo;</TD></TR><TR><TD CLASS="quote">All fuses are good and the injectors are fine as well. There is no power from the ecu to the injectors. I know this because I have a noid light hooked up to it and it is not flashing. Any one else with some ideas?</TD></TR></TABLE>

does the ecu cycle and fuel pump rime when the key is turned "on"?
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