MULTIPLE CYLINDER MISFIRE! is it my sparks heres a PIC!

[SRiz]

i just got new spark plugs and wires....cause my old ones were makeing a CEL come up, from cylinder misfire! SO! I got new plugs and wires i had magnacore 8.5 with NGK iridium with the "6" cold range. I just got Accel thundersports wires and NGK BPR6ES plugs and gapped it to about 28-29... theres a pic of my spark plugs are they fouled or "speed glazed" or is it something else... should i go with a colder plug maybe the 7's
thanx,
Sam

 

[scaryc]

looks similar to mine

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[alexg1323]

they look fine, what makes you think the plugs and wires were originally causing the misfire problem?

 

[92awddsm]

That plug looks like you are running lean. Have you done any mods to the mas or intake pipe? When was the last time you changed the fuel filter?

 

[SRiz]

i have a supra SMIC which is when the problem started... hmmm think i might have more air going in than fuel (lean) should i get a fuel pump now rather than later cause i keep getting mulitple cylinder misfire code

 

[92awddsm]

I would at least rewire the pump and change the fuel filter. Try that and see what it does. If it doesnt get any better, you might have a fuel pump on its way out.

 

[juso]

Both those plugs look just fine.
I woundn't think your running lean by those pics. I say thats a clean burn.
If the center is black i would say yeah your running rich but its not its all white which indicates a good burn.

 

[1stGENracer]

white is usually lean, they should be a brownish color.

 

[750_sport]

Yes Those plugs are lean.

The first one I would do a leak down on the motor. Looks like your having headgasket problems or are you running a fuel additive? Looks like antifreeze, I would have to look at the plugs though. Make sure to mark your plugs as to what cylinder they came out of.

Second pic. You plug looks to be blistered. That looks like lean Blistering.


Electrodes look glazed; core nose very white; few deposits. Plug is overheating.
Check plug temperature value, ignition timing, fuel octane rating (might be too low) and mixture setting (too lean). Rectify before piston rings break or valve faces burn.

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tan coloured plug means that the engine is running normal and the air/fuel mixture is correct. Tan is the correct color a spark plug should be and it tells you everything is fine with the engine. You would install a new properly gapped plug. When installing a new plug, replace the old one with the same heat range. A new plug would have square edges that helps the plug fire better

 

[SRiz]

wow.... see if u can figure this one out... i got an oil change, new tranny fluidand radiator flush today and the light went off before they could do and engine diag... the car runs like new ... WTF! im not complaining .. im just courious how did that fix it?!