Soooo.... I am back with yet another Disco!

My last 3 have been night mares... nightmares with a happy ending... lol

So this one is carbon fouling my #6 plug, I can replace it and within minutes it will be foul again. What do I replace???

Everything right,

okay real question, can autozone run a test and pull codes for me???

Thanks all

 

That cylinder is probably running rich, maybe a bad injector. What codes do you have? Mileage?

 

How many miles on it, what are your fault codes and are you still running the factory gray plug wires? Number 6 is a common plug to foul when running factory wires.

 

p0130
oxegen sensor

p1590
no idea

p0304
cylinder 4 misfire

p0150
oxegen sensor

The spark plug was completely covered in carbon

 

So, it is obvious by your codes you need 02 sensors. The 1590 code is part of the 3 amigos issue you are having.
Seriously consider do a good tune up with wires and 02 sensors.
As for the suggestion about a fuel injector, you don't have a code for one, is that #6 plug black and sooty or wet, black and sooty?

 

Thanks for the input Mike!

Which o2 sensors do I replace, also do I need to clear codes after wards to make them run right?

And my last question... Its apparently cylinder 4, is it weird that only one cylinder would foul out when 2 out of 4 o2 sensors are registering bad?

Thanks again

 

How many miles on the engine?
Do you have the gray factory plug wires?

 

OOPPS missed those questions

160k on the clock and it has black wires and platinum plugs

 

Well I would say it is time for wires for sure, 8 mm Magnacor are a great way to go. Replacing them will take care of the misfire, the 02's should take care of the rest.
By the way, what octane gas are you burning?

 

Mike your a life saver...

Would you know what o2s to buy from the codes and where to get them... also do I have to get magnecore... or is there a less expensive alternative... and is there a way to tell if the wires are bad. Thanks