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No spark, no injector pulse, r&r'd computer - 2002 Honda Civic

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I have no injector impluse


no injector pulse - DodgeForum.com

dodgeforum.com/forum/2nd-gen-ram.../269362-no-injector-pulse.html
Nov 21, 2010 - no injector pulse 2nd Gen Ram Tech. ... but was running and driving fine before. as far as i can tell i have no injector pulse. tested with a noid ... No spark AND no fuel injector pulse ONLY when van is cold ...
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Oct 23, 2015 | Dodge Cars & Trucks

1 Answer

98 eclipse 2.0 has spark but no injector pulse on #2 or #4


Injectors are pulsed by ECU using ground. You should check if there is any current coming out from fuse box.Most fuse boxes with injector fuses will share two injectors off one pin. So you may have two wires coming out from fuse box, and it is very common to be paired 1-3 & 2-4.

Jan 07, 2014 | Mitsubishi Eclipse Cars & Trucks

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Injectors don't always open, so car wont always start.


Check for its specification (Ohm) If not within, replace it.


mai Lor

Mar 01, 2013 | Cars & Trucks

1 Answer

No injector pulse


what vehicle? injector pulse controlled by computer. the computer recieves a pulse from crank angle sensor, or distributor pick up, etc.
then controls injector pulse. Mass air flow on some vehicles determines spray pattern

Jun 29, 2012 | 1991 Chevrolet Cavalier

1 Answer

99 nissan pathfinder , no spark , no pulse from injectors why?????


The ECM need power and ground,in the engine fuse jubnction box is the ECM fuse this is a 7.5 amp fuse make sure its not blown

Apr 13, 2012 | Cars & Trucks

1 Answer

No injector pulse


1991 this make you OBD1 . You can access a code by jumping 2 terminals together.The injector pulse is from the PCM . If you have no pulse you need to troubleshoot for spark first . If you dont have spark do spark first then injector pulse comes on. If no injector pulse check fuse in engine junction box.Use a volt meter check grounds at PCM. If all else checks out good replace PCM. You may also want to check the TPS. If this sensor short out in the WOT position you also wont get injector pulse.SO disconnect the TPS. and recheck for injector pulse

Feb 23, 2012 | 1991 Chevrolet Caprice

1 Answer

No gas coming out the injector and there is gas pressure to the injector?


Is there an injector pulse going to the injector?(an electrical pulse to fire the injector).
Is there spark at the plugs?
If the pickup in the dist is faulty you won't have either one.
If your vehicle uses a crank pickup with or instead of dist pick up....if it is defective ....no pulse.
The above is 90% cause of no pulse....other is computer problem 10%.
If you do have a injector pulse and no spray.....and have fuel pressure....change the injector.
A quick check for spark is spray a little starting fluid in it.....if it starts on the fluid....spark is present.

Nov 03, 2009 | 1997 Chevrolet Blazer

1 Answer

Vehicle has no spark or injector pulse-have already replaced coil & module


the only thing i can think that kills both spark and injector pulse is the computer

Oct 01, 2009 | 1997 Volvo 850

1 Answer

My 1990 Chevy Celebrity wagon 3.1 multiport fuel injection is getting fuel to the rack at 45psi, but is not going through the injectors. Any idea the probable cause?


DO YOU HAVE 12 VOLTS ON INJECTOR WIRE ON ONE SIDE WITH KEY ON? IF SO ARE YOU GETTING SPARK? IF YOU HAVE NEITHER YOU MAY NEED A NEW CRANK SENSOR. VERY COMMON ON THIS ENGINE WHEN THERE IS A LOSS OF SPARK AND INJECTOR PULSE. INJECTOR PULSE(GROUND SIDE)IS CONTROLLED BY THE COMPUTER. IF YOU HAVE SPARK BUT NO INJECTOR PULSE AND 12 VOLTS ON INJECTOR FEED WIRE YOU MAY HAVE A FAUTY ECM(ENGINE COMPUTER)

Aug 31, 2009 | 1990 Chevrolet Celebrity

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