spark plug lean or rich?

e3sean · June 19th, 2008, 11:51 PM

ok so i found the culprit in the studdering its the #2 cylender i am pretty sure its the injector. all the plugs are clean on the tips but black all around the plug. except for the #@ plug it is black around the plug but the tip looks like its a rusted color these plugs have only been used for about an hour total. i think the injector may be dumping too much fuel in and causing the plug not to ignite the fuel when it should causing the studdering at low rpm's

any iput??

ujslost · June 19th, 2008, 11:56 PM

your description throw me of the way you use the words tip and plug.
do you mean the ground strap, or the electrode or the base of the threads?
All three areas are reading points.

ryans88gt · June 20th, 2008, 01:18 AM

pics please

e3sean · June 20th, 2008, 03:42 AM

i tried to get a pic but it was way too blury but here is a better description

the base of the threds are black.

chickenbot · June 20th, 2008, 03:47 AM

Interpreting your spark plugs

pst

e3sean · June 20th, 2008, 03:49 AM

mine are bran new and dont look like any of those. it has to be the injector i am gettin them done tomorrow.

chickenbot · June 20th, 2008, 03:50 AM

mines still down

but im expecting my back pay soon though.. they ran my remedial promotion package threw and i picked up e-3 yesterday..

e3sean · June 20th, 2008, 03:54 AM

good job. some extra cash.. my 4 year raise kicks in on the 15th of next month and i get my cloathing allowance comes this paycheck

chickenbot · June 20th, 2008, 03:55 AM

nice.. but i get njped next fri lol but im expecting about 1300 after taxes to come back to me

ryans88gt · June 20th, 2008, 10:33 AM

So if it is a brownish color (I hope that is what you mean by rust color and not actual rust) on the grounding strap that usually means it is a touch rich, but you really need to check the plugs right after doing a WOT pass, pull over and pull the plugs and look at them. Pulling them after it has idled for 5 minutes doesn't really tell you much since they will have cleaned off.

So the #8 cyl looks fine now?

Ghost in the machine?

June 19th, 2008, 11:51 PM	#1
e3sean I Post Entirely Way Too Much 1988 lx 9.68@142 Join Date: Nov 2007 Location: goldsboro NC Posts: 5,596 iTrader: 0 reviews	spark plug lean or rich? ok so i found the culprit in the studdering its the #2 cylender i am pretty sure its the injector. all the plugs are clean on the tips but black all around the plug. except for the #@ plug it is black around the plug but the tip looks like its a rusted color these plugs have only been used for about an hour total. i think the injector may be dumping too much fuel in and causing the plug not to ignite the fuel when it should causing the studdering at low rpm's any iput?? __________________

June 20th, 2008, 01:18 AM	#3
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 4,627 iTrader: 0 reviews	pics please __________________ 88 GT CHI headed 351w 10.8 @ 125 - still figuring it out. 03 Cobra 2.3 whipple 10.7 @ 129 - sold it 04 Mach 1 12.7 @ 109 mostly stock - sold it 89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it

June 20th, 2008, 03:42 AM	#4
e3sean I Post Entirely Way Too Much 1988 lx 9.68@142 Join Date: Nov 2007 Location: goldsboro NC Posts: 5,596 iTrader: 0 reviews	i tried to get a pic but it was way too blury but here is a better description the base of the threds are black. __________________

June 20th, 2008, 03:47 AM	#5
chickenbot Enthusiast 1990 mustang gt eventually Join Date: Nov 2007 Location: plano, tx Posts: 938 iTrader: 0 reviews	Interpreting your spark plugs pst __________________ 1990 gt 5.0 Mac Performance 76mm straight shot intake 70mm Accufab tb and egr spacer Trick Flow Track Heat u/l intake 3.55 gears MSD distributor, Blaster Coil, and 8.5mm wires

June 20th, 2008, 03:49 AM	#6
e3sean I Post Entirely Way Too Much 1988 lx 9.68@142 Join Date: Nov 2007 Location: goldsboro NC Posts: 5,596 iTrader: 0 reviews	mine are bran new and dont look like any of those. it has to be the injector i am gettin them done tomorrow. __________________

June 19th, 2008, 11:56 PM	#2
ujslost MM Fanatic Join Date: Mar 2007 Location: Albertville, AL Posts: 3,920 Blog Entries: 1 iTrader: 1 reviews	your description throw me of the way you use the words tip and plug. do you mean the ground strap, or the electrode or the base of the threads? All three areas are reading points. __________________ 1986 Mustang GT t-top time piece!

June 20th, 2008, 03:50 AM	#7
chickenbot Enthusiast 1990 mustang gt eventually Join Date: Nov 2007 Location: plano, tx Posts: 938 iTrader: 0 reviews	mines still down but im expecting my back pay soon though.. they ran my remedial promotion package threw and i picked up e-3 yesterday.. __________________ 1990 gt 5.0 Mac Performance 76mm straight shot intake 70mm Accufab tb and egr spacer Trick Flow Track Heat u/l intake 3.55 gears MSD distributor, Blaster Coil, and 8.5mm wires

June 20th, 2008, 03:54 AM	#8
e3sean I Post Entirely Way Too Much 1988 lx 9.68@142 Join Date: Nov 2007 Location: goldsboro NC Posts: 5,596 iTrader: 0 reviews	good job. some extra cash.. my 4 year raise kicks in on the 15th of next month and i get my cloathing allowance comes this paycheck __________________

June 20th, 2008, 03:55 AM	#9
chickenbot Enthusiast 1990 mustang gt eventually Join Date: Nov 2007 Location: plano, tx Posts: 938 iTrader: 0 reviews	nice.. but i get njped next fri lol but im expecting about 1300 after taxes to come back to me __________________ 1990 gt 5.0 Mac Performance 76mm straight shot intake 70mm Accufab tb and egr spacer Trick Flow Track Heat u/l intake 3.55 gears MSD distributor, Blaster Coil, and 8.5mm wires

June 20th, 2008, 10:33 AM	#10
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 4,627 iTrader: 0 reviews	So if it is a brownish color (I hope that is what you mean by rust color and not actual rust) on the grounding strap that usually means it is a touch rich, but you really need to check the plugs right after doing a WOT pass, pull over and pull the plugs and look at them. Pulling them after it has idled for 5 minutes doesn't really tell you much since they will have cleaned off. So the #8 cyl looks fine now? Ghost in the machine? __________________ 88 GT CHI headed 351w 10.8 @ 125 - still figuring it out. 03 Cobra 2.3 whipple 10.7 @ 129 - sold it 04 Mach 1 12.7 @ 109 mostly stock - sold it 89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it

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