Civic-EG.com Forum 3.3.1

- Tue Sep 28, 2010 1:10 am #215648 D16y7 - 96 civic, I know that this is the wrong place for this car, but
I am in desperiate condition.

While the car was performing a three point turn, the engine suddently die
and will not start. I have rule out the following problem.

Replace with known good parts.
Distributor, battery is good, all grounds are good, fuel pump purged with key on II, ECU, check and recheck all fuses , fuses under the hood and
fuses under the steering, also the Large Blue fuse under the dash on driver side, I am totally out of ideas,

I have been working on this car for two days, and yet to find out why
it wound not fire?

- Tue Sep 28, 2010 2:57 am #215664 Does it crank at all? Checked the main relay? How about the fuel filter is that good still? Plugs, wires still good?

Straight lines are for sissies.

- Tue Sep 28, 2010 8:35 am #215698 have you checked for spark from leads and dizzy?

[teal_dx]

- Tue Sep 28, 2010 1:16 pm #215718 need to know the above

Also how did it stop running? suddenly quit or was it running poorly first? was there a check engine light?

Do Not PM me your technical questions. Post them in the forum!
My 1992 SOHC Turbo Hatch
My Youtube Channel: 6th Gear Garage

- Tue Sep 28, 2010 4:14 pm #215728

Check engine light?

x2. Is it on, and if so what codes are you getting?

- Wed Sep 29, 2010 12:20 am #215802 The car cranks fine, timming belt is good, swaped with a known good
distributor. main fuse seems fine - fuse on the side of the glove box.

The car was running and suddently stop, it had to be tow.
The engine light was on, but its been on for over a year.
I am not sure if the fuel filter is pluged. but it looks fine.

I replaced the distributor for a known good one. how ever i did not
checked for spark, since I have swap to a known good dizzy I would assume that this would solved the issue with the sparks.

I have check and double checked on all the fuses the main relay seem ok, since the fuel pump is priming fine. there is evident of pressure in the tank.

I removed the valve cover today and noticed the roker arm retaining spring has been broken on the CYL # 1 on the exhaust side ( retaining spring help keep the roker arms from moving from side to side.
I am not sure if this is the reason for the engine not to fire.

when I swap to a different dizzy, when the engine was cranked for long period of time ( 15-20 sec) the engine fires but dies immediately when the starter disengages.

- can I use the old spark plugs to test for spark? too many people are
telling me to use a test spark plugs?.

how can I test if the injectors are working.

how would I check to see if the ignition switch is working or defective?

would a defective ignition switch prevent from firing.

WHAT THE HELL IS GOING ON???
would a defective ignition swith

- Wed Sep 29, 2010 12:27 am #215804 Engine light was on but not on any more, engine light is gone after
fuel pump purges and main relay clicks.

- Wed Sep 29, 2010 2:47 am #215812 Yes you can use the old spark plugs to test for spark. That's kind of the point. If the plugs are not sparking then the car won't start.

A car needs three things to run, air, fuel and spark. If it's not running part of that equation is fucked.

The best way to check for spark (IIRC) is to pull the plugs and keep them plugged into the wires. Crank the thing and if the plugs spark ... then they're fine. Or you could just go but some new spark plugs so you know you are starting with good ones since they aren't that expensive.

How's the air filter? Try starting it with the TB open (disconnect the intake hose) maybe it's getting starved for air.

I don't know much about OBD2 vehicles ... but don't they have a Crank Position Sensor? I suppose that could be messing with things if it went bad. Someone else is going to have to chime in on this idea, because I'm not completely sure about it.

Straight lines are for sissies.

- Wed Sep 29, 2010 11:57 am #215842 I guess so, but the ECL would more than likely be showing still?

- Fri Oct 01, 2010 8:54 pm #216298 is your timing off? I would check your timing and make sure you are right on.

- Sat Oct 02, 2010 12:48 am #216331 I don't think timing could be it though because my buddy ran for 2 months with his timing FUCKED UP. It was like 12 teeth off. So im stumped to on it Good luck with trying to find out what's wrong.

- Sat Oct 02, 2010 1:05 am #216332 After further digging NO SPARK was present.

Good Known parts.

Wires
plugs
distributor
ecu
checked main fuse
spark plugs,
checked all fuse on vehicle

engine harness corrosion at ECU connection ?

I will swapped the engine harness tommorow.

besided the harness what orther problem would be the cause?

- Sat Oct 02, 2010 1:38 am #216336 Do what autoxcivic said and pull the plug and then stick it back into the wire, have someone turn the car over and see if its sparking. If you are getting spark, check to make sure fuel is getting to the injectors. If your like me then just loosen your fuel rail, again have someone try to start the car, just make sure you put your plug back in first so you dont start a fire! If your getting pressure then youll know. If you are seem to be getting good pressure, check your compression. By now you should have come across a problem. Be sure to post back and let us know which of the three your having troubles with so we can troubleshoot further.

I guess it never hurts to make sure your intake/filter didnt get clogged out of nowhere either, so pull the hose off your TB and try to start your car before you do any of this.


EDIT: looks like youve checked for spark and had none. Seems kind of doubtfull that it is your harness, but i guess its possible. The best thing to do is double back from your plugs to see where you are losing your spark. Pull your plugs and stick your wire against your vc, you should hear it arc against it, if not check your dizzy for spark (chances are its not your wires, or your plugs) when you replaced your dizzy did you swap the whole thing?

If you have a voltmeter i imagine you could just check the plugs that connect to the dizzy. If you arent getting anything there then its your harness.

94 blue lx sedan (sold)
95 black ex sedan (wrecked)
93 white z6 del sol (Sold)
95 red y8 hatch (sold)
98 red coupe

- Sat Oct 02, 2010 3:45 am #216362 At the car again,

I found 1 burned wire on the harness, near the connector to the ecu,
repair the wire. try start --- no start.

I have also found 6 wires with some skin missing ( bare copper is visible)
through the wires do not seem to be broken.

Question,
where can I get a diagram of how to test the wiring harness
96 civic d16y7 - wiring diagram ecu to distributor. I suspect there is a
broken wire or short wire between the ecu to the distributor.

Question,
Is there a GROUND for the Distributor, If yes, PROVIDE location of
ground would much be appricated.

quick list of total requirements for spark.

ecu
wiring harness
distributor
wires
plugs
properly grounded connections.

if I miss anything please provide additional info. to the list.
what are your thoughts teal_dx?

[Ajax1989]

- Sat Oct 02, 2010 5:04 am #216378 clean the ckp(crankshaft position sensor) near the crank pully, its a magnet which collects lil bits of metal and plus oil on it can collect dirt n shit, ive herd many storys from my insturcters from my school that a dirty ckp can cause a no start.. on obd2 cars if the ecu doesnt get a signal from the ckp it wont spark.. and as with the cmp(camshaft position sensor)

the dizzy grounds out through the head i believe