driving on the bypass (normal driving not abusing the car) my car started studdering and misfiring. I drove home and checked the codes:

Cylinder 3 misfire
Cylinder 4 misfire

so i changed distributors to one i know is good, bought new plugs (ngk of course) and new wires.

Now the car is hard to start but does start, its running ragged and is misfiring on number 3 still. (if i pull the wire out while the cars running it doesnt change the idle where as if i pull the other 3 out it drops drastically)

Any how problem is the number 3 is sparking now. What else could cause this?

Also my car is pouring black smoke out the exhualst, and when i take the sparkplug out for number 3, theres a faint white smoke coming out of the hole

 

....


Modified by George Knighton at 8:18 AM 11/14/2007

 

theres no oil in the spark plugs right?? if its black black smoke its oil burnt up but i doubt that could be unburned fuel out of the exhaust. and try OEM spark plugs. too much spark is bad. thats why its white smoke out of the whole. if not then oil is in there.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Zer0skll &raquo;</TD></TR><TR><TD CLASS="quote">if its black black smoke its oil burnt up</TD></TR></TABLE>

WRONG. Black smoke indicates too much fuel, a rich mixture.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Zer0skll &raquo;</TD></TR><TR><TD CLASS="quote">and try OEM spark plugs. too much spark is bad. thats why its white smoke out of the whole. </TD></TR></TABLE>

Firstly, it is spelled hole.

Secondly, wtf are you talking about "too much spark"? Don't post BS crap if you don't know what you're talking about, and trust me, YOU DON'T.

OP: It sounds to me like you have another problem causing the black smoke out of the exhaust, but since you say you have spark on the #3 plug I'm going to go ahead and assume your fuel system is at fault. Do you have a noid light? Get one or borrow one and check to make sure that all the injectors are getting a pulse. Then check your fuel pressure and make sure it is in spec.

 

okay to clear some stuff up i dont know what yall consider O.E plugs but NGK are OE and im running the ones that are factory recommended for the car... im not a complete idiot im just busy working on getting a turbo mr2 up to tune and doing a timing belt job on a toyota tercel and im hopeing someone had a clue about whats wrong with my car... seems like 1 out of every 3 replys is even worth reading.

mgags7, yea i think its going to be fuel too i had a problem with this injector getting stuck open before and i know im getting gas to that cylinder. i dont know about fuel pressure because the other 3 (1,2 & 4) area all firing perfectly. what im really trying to do is rule out rings or a headgasket problem.

btw:
gas = black, can be white also
coolant = white/gray
oil = blue

 

I think your injector is pouring gas into the cylinder, way over fueling, the white smoke is fuel evaperating in the hot engine coming out of the spark plug hole.

 

question... i think the same, but is it possible to wire up an obd1 injector into an obd2 car? like if i use the clip from an obd1 car? will it have an affect running one obd1 and the rest obd2 because i know i have spare obd1 injectors but no obd2.

 

Yes, it is possible.

No, you don't want to, because obd1 preludes use 345cc peak and hold injectors, and obd2 uses 290cc saturated.

 

actually i was talking more of a obd1 honda civic fuel injector... anythings better than now and i gotta make a long trip tomorrow 638 miles to be exact. nc to alabama.. anyhow 1,2, and 4 spark plugs have a light black coating on them and number 3 still looks brand new so i gotta find something out tonight.

 

3 looks brand new?? whats with that?

So how would nothing build up on a spark plug? if it wasn't firing and no combustion was occuring?

 

Gas evaporates.

 

k after cranking it and letting it idle for about 5 minutes i pulled the number 3 and number 4 i wish i could take pics. okay number 4 looks normal after running its got the black **** look to it... number 3 however was coated in gas and as clean as it was when i put it in... also ifi take number 3 and ground it out to the valve cover while cranking it, it sparks just as hard as the other 3. im getting heavy black smoke out the exhualst and occasionally some blue when im reving it... but when i just let it idle theres a small white cloud coming out not much just enough to see almost like a car does when warming up in cold weather. only problem is it dosent stop, its not cold here especially not in my shop, and the cars already warmed up.

 

Ok, it seems that you're getting fuel and spark, so the last thing to check is compression.

The only other problem could be the injector is still stuck open, but since you swapped it, I doubt that.

What is the history on the engine? It sounds like you have a bad HG or maybe rings (possibly a bent/burnt valve???)

Do a compression test.

 

rebuilt less than 30 thousand miles high compression pistons, and a few other things u think compressions it????? i hope not. i havent swaped injectors im going to do that now

 

Oh ok, I thought you said you swapped them.

Do it and get back at us.

 

ha yea i switched cyl 2 and cyl 3 injectors and still misfire on cyl 3 so i guess that only leaves compression? this sucks i was supposed to leave today for alabama now im stuck with a junk motor i had rebuilt less than a year ago... well wish i wouldnt have sold my snapon compression guage now b/c id post the compression numbers for laughs... guess im off to buy rings and stuff ima build it my self this time. thanks.

also im throwing a code for cat converter (gotta universal cat on it), EGR valve, and when i was cleaning that out i cleaned the IACV it was caked with **** and stuff... any info of hand why this would be? the IACV is as old as the rebuild because i bought that then, the intake manifold was taken and cleaned all out yet its already filled with **** and whatever in the egr area.

 

you noted high compression pistons. what do you mean high?? 11.1 and higher

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ncskate1985 &raquo;</TD></TR><TR><TD CLASS="quote">ha yea i switched cyl 2 and cyl 3 injectors and still misfire on cyl 3 so i guess that only leaves compression? this sucks i was supposed to leave today for alabama now im stuck with a junk motor i had rebuilt less than a year ago... well wish i wouldnt have sold my snapon compression guage now b/c id post the compression numbers for laughs... guess im off to buy rings and stuff ima build it my self this time. thanks.

also im throwing a code for cat converter (gotta universal cat on it), EGR valve, and when i was cleaning that out i cleaned the IACV it was caked with **** and stuff... any info of hand why this would be? the IACV is as old as the rebuild because i bought that then, the intake manifold was taken and cleaned all out yet its already filled with **** and whatever in the egr area.</TD></TR></TABLE>

If you tear down and rebuild this thing before doing a simple compression test, you're an idiot.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">

If you tear down and rebuild this thing before doing a simple compression test, you're an idiot.</TD></TR></TABLE>
x2

 

good point. im jus givin up cuz i dont know what else it could be. ill go do a compression test.

 

just a bit of more information my cars hitting what seems like a rev limiter at 6500 and it never did that before, it smokes blue but slightly not bad at all just what could be normal. mostly black but not really that much black anymore either... at idle the misfire is bad, as the rpms climb it levels out alittle bit.


can the catalatic converter cause a misfire on just one cylinder (cyl 3)?


cuz it is a crappy universale cat, also i hear poping noises in the general area of the cataletic converter (probley just caused by the misfire tho)


EDIT: I also have a weird "tisk" sounding noise from the front (exhualst side) of the motor top side.


Modified by ncskate1985 at 10:40 AM 11/16/2007

 

that rev limit means that the CEL is making the ecu not allow vtec, do you have any other CEL codes?

 

jus cleared the computer and only put 5 miles on it to go get gas as of now im only throwing code 73 which is cyl 3 misfire.

ill check again when i get a chance.. im also working on a turbo mr2 so im pulled left and right.


also with a volt meter on cyl 1 2 and 4 the voltage for the injector was fluctuating from .6 to .9 up and down.... on cyl 3 it stay stuck at .7 seems like it wouldnt make a difference like this but figured id throw that in


Modified by ncskate1985 at 12:27 PM 11/16/2007

 

You should try testing the resistor box to see if it is working right. I believe there is a pinout on the h22/civic hybrid thread in the Hybrid forum (on h-t).

Check that, find the pins, test resistance across the terminals, make sure they're all even.

 

okay i know this is definatly not a smart idea nor a good way to figure anything out and probley shouldnt be done but i removed the exhualst manifold to checkmy valves and see if oil was getting in one of the ports on the head... anyhow i cranked the car with the manifold off the car.

number 3 was randomly shoting blue explosions out of the port where others werent and aside from that it was forcing alot more pressure out than the other cylinders i held a screw driver infront of each one at a time and 3 was the most forceful of all.. im still waiting on my compression tester and ill get those numbers up tonight. right now im going to try what u said about testing the resistor pack... i had no clue 5th gens had a resistor pack