Question about 1999 Honda Civic

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1999 honda civic auto 1590cc no injector pulse

You switch the ignition on the fuel pump works as should, on cranking their is no injector pulse and the ignition spark only last for about 3 seconds. the engine management light comes on then goes out after a few seconds, the green key light comes on and goes out none of them come on when cranking, any help will be very much appreciated cheers Steve.

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  • Honda Master
  • 20,706 Answers

The eCU never injects if it ever thinks there is bad spark or spark precursors (ckp/cmp sensors)
and hark tells you, with the scan tool just that. ever used a scan tool>
real>? in your case this is true, (3 second dropP
here are the correct steps.
1: fuses good.
2: key on, immoblizer lamp out. (got that? option?)
3: CEL , Charge and brake warning lamps all on, if CEL is out the ECU is dead. CEL means Check engine light ( aka: MIL or SES)

4: plug in scan tool to 16pin port (USA cars, i dont do non usa cars)
and the obd2 scan tool comunicates and works, if not , pin 16 fuse is blown to 16pin DLC connnector. if Scan tool works. and you see
the TPS move with right foot action then crank car for 5seconds.
the ECU will show RPM work. 250?
then may throw 2 DTC'S or more.
P0340./355 etc, telling you why it cut the main relay, and all injections.

The ECU is amazing, this way,
the ECU can also see primary spark bad, and show that
i can not see , secondary spark bad. (until running and that is called misfire)

get the scan tool they rent cheap or free.
in USA.
if not in the USA all comments here are useless.
other countries use OBD1 or other protocoals.

known exactly what engine your car counts big time.
as EFI varies greatly by this.
D16y5,7,8? B16A2? both are 1.6L
15 D engines
http://en.wikipedia.org/wiki/Honda_D_engine
and
lots of B16s seen here
http://en.wikipedia.org/wiki/Honda_B_engine#B16A2

first know what engine,
then get the FSM and learn what makes it happy.

each engine can have unique spark systems. (3 possible world wide)
distributor.
wasted spark, coil. 2 dual coil packs.?
COPS, 4 cops on top plugs?
each has unique troubleshooting techniques.
ask.



Posted on Feb 14, 2014

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Posted on Jan 02, 2017

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jeremythious
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SOURCE: 91 honda civic dx. Starts, runs for a few seconds then stalls

Try pounding on the gas tank with a rubber mallet or similar tool. (careful not to dent the tank) Try starting it. If it runs, replace the fuel pump (it's nfg). I've diagnosed numerous fuel pumps this way. Remember the pump needs to be replaced, if you drive it, you don't know when it'll fail for good. Hope this helps. Please post the results.

Posted on Feb 08, 2009

  • 16 Answers

SOURCE: 91 honda civic dx 1.5L quit running properly.

bro, check ur main relay. its under the dash. replace it, check also ur distributor(replace it). and also your ECU

Posted on Feb 22, 2009

Testimonial: "right answer but I received it much too late. I went to a mechanic and paid him to fix it."

HondaAl
  • 72 Answers

SOURCE: '95 Honda Civic EX will not start after cleaning fuel injectors

I would talk to who cleaned the injectors, I don't know if it something they did or not. It could be a stuck open injector. The exhaust would have a raw fuel odor if it was. What it sounds like is a blown headgasket, which can just happen. The exhaust would have a sweet smell to it. Usually starts as a small leak (between cyl. 2 & 3), the engine burns the coolant while driving which you don't see. Then the coolant level gradually drops to a point where the car overheats, which warps the head, causing a large leak. Now you see the coolant burning (white smoke).
Good luck Honda Al

Posted on May 12, 2009

Testimonial: "Thank you so much for your help. I did find out the problem. I had a bad distributor cap and rotor. Got it fixed and now the car runs fine."

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SOURCE: 1993 honda accord 2.2,no injector pulse

This sounds like a main relay problem here is a diagram its located under the dash under steering column its the brownish -orange box in the picture. http://www.tegger.com/hondafaq/mainrelaylocation/7-main_relay_closeup.jpg Good luck and thanks for using FIX YA

Posted on May 15, 2009

philschneide
  • 448 Answers

SOURCE: 1991 Honda Civic 1500 idles irregularly, with check engine light.

I think I would suspect the fuel injectors, especially since that is the code you are getting. Fuel injectors clog up, get dirty, stop working the way they should. They can be cleaned (you can remove them and send them to a company that cleans them and makes them like new, or, they can be cleaned in the car by some garages, or, you can get a can of Sea Foam spray and spray it into your throttle housing several times to try to do some cleaning that way, or, you can dump a can of Sea Foam (non-spray) into your gas tank and run it with the fuel through your injectors). You should probably check when you first start the car to see if you are getting any leakage from one or another injector (one or another may look moist or wet if the seals are leaking). You can also do the long screwdriver test (hold the bit of the screwdriver against each injector in turn and listen with your ear against the other end to see if each is clicking regularly). I would try the Sea Foam first.
I hope this is helpful in getting you started on a fix.

Posted on Dec 16, 2009

Testimonial: "Quick response and good suggestions. I have not yet verified the solution but believe that I'm troubleshooting in the right direction."

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I have a 1992 Honda civic lx with a 1.5 four cylinder, and Ive replaced the ignition switch the fuel pump relay and the fueled pump itself however, the fuel pump still doesn't prime when I turn the key...


no start , crank perfectly
so , got spark?
the ECU has programming (ROM) and in fact kills all fueling with no spark , (even if it thinks there is no spark, even if spark is ok)
all ECU use a way to read back spark quality, (ALL){LAWS}
how honda does it in code, i don't know , see C R O M E forum)
turn the key over means nothing to me.?? sorry, it doent/
try saying what postion? cranking? or just keyon.
now some more EFI rules.
The EFI (some) do not activate the pump relay until cranking.
some do just key on for 3 seconds, read the FSM, its free.
need a link to the free manual? read the ECU logic on that.?
and prime has a special meaning, it means purge air,
its not for fuel. some system send a fast prime pulse. to clear air from the pressure lines, this plus does not inject.
that is how EFI works,

the flow
1: key on, ECU sends prime pulse, (air purge)
2: some ecu, run pump for 3 seconds, and pressure hits 35psi? RTM.
3: all ecu activate pump cranking and running.
4: now check pressure. !" 36 psi FSM stated spec"
5: now crank, if the ECU sees no spark errors, it injects
6: if the ECU sees WOT. it stops injection to clear a flood, cranking.
those rules cover most ECU made.

honda this year has a special feature called,
Fuel Cut-Off Control'
if this messes up, it i can cut fuel
does this help?
even better is this site, (has all the facts..)
http://honda-tech.com/showthread.php?t=810101

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