i pulled my plugs today since my car was miss firing somewhat and i found the plugs looked...strange. The ground strap is white but around the electrode its black. The engine is a B18A and the plugs are boshe platinum's why do they look like this?

 

Looks like you're running lean......

 

ok well i have a afc so i can add fuel, it was set when i bought the car and i havent played with it at all so..., my settings are:
RPM LO setting Hi setting
1000 0 -5
1800 -8 -5
2600 -8 -2
3200 -8 -1
3800 -8 0
4000 -8 0
4600 -8 +2
5200 -8 +2
5800 -8 +3
6400 -8 +3
6600 -8 +4
6800 -8 +5

 

set it to all 0 and install some basic ngk plugs.

 

ok ill try that, quick question with the safc, when it shows the correction of a neg. valve such as the -8 is it adding fuel of taking away fuel? im confused on this because i know it moddifies the map sensor signal and i didnt know if it ment it was reducing the signal voltage or actully the fuel itself

 

Did you pull the plugs at idle or after a full throttle run?

 

i pulled the plugs after driving the car around town a bit dont think i had any full throttle runs then. the plugs are what came in the car and iv plut 5K on the car, didnt pull plugs before i bought car so i dont know what they looked like before

 

the problem is that they are bosch platinums

 

What's done to the car to warrant those fuel corrections?

In any case, regular NGK spark plugs work wonders

 

Looks to me you are running a little lean a bit. The white powdery stuff is maybe the fuel additives. Also the black around the outside tells me your startup and idle are a little rich.

 

i/h/e, but like i said in a post b4 i didnt set these settings it was set, that is why i posted them, should i just set them all to 0? and also when the afc says a neg value is it taking away fuel or reducing map voltage?

 

Looks too hot! make sure you have correct plug heat range.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by extra cam needed &raquo;</TD></TR><TR><TD CLASS="quote">Looks too hot! make sure you have correct plug heat range. </TD></TR></TABLE>

BKR7E-11 NGK,

R5671A-8 4554 (stock #) NGKs for a high comp application.


Modified by LSVTEC 91 Civic at 8:59 PM 5/19/2005

 

I wouldn't run a 7 series plug. I would run a 6.

 

those plugs look exactly how mine come out when I change em. Looks lean huh.. But I got a wideband and its telling me 14s at idle and swings into solid 11s at wot, so humm..? Dont know your set up.

 

just the basic i/h/e, but the guy that had the car before me set the afc not me so the settings could be wrong

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KraZEtEggIE &raquo;</TD></TR><TR><TD CLASS="quote">set it to all 0 and install some basic ngk plugs.</TD></TR></TABLE>

or go one step colder, you could run a bkr6en11 stock # 5724. Stay away fron bosch plugs, they are garbage.

 

btw, with your safc, - takes fuel away, + adds

 

ok thanks for all the replies guys, im gonna put the car on the bottle so im thinking maybe 2 ranges colder but get a CD box to keep the plugs firing clean at low rpm's as well as higher ones

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DarkDragon &raquo;</TD></TR><TR><TD CLASS="quote">ok thanks for all the replies guys, im gonna put the car on the bottle so im thinking maybe 2 ranges colder but get a CD box to keep the plugs firing clean at low rpm's as well as higher ones</TD></TR></TABLE>

NGK R5671A-8 will be your friend.

 

I suggest getting a true wideband so you know whats going on while adjusting the AFC, its the only way to make real settings. And just go one step colder.

 

ya im definatly looking into a wideband, im gonna be at a muffler shop this week anyway so ill go ahead and get them to tap the exhaust and weld a bung in but block it so i can install another sensor