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black spark plugs
Posted:
Mon Mar 15, 2010 7:55 pmby 95civiceg
Okay so on saturday when I was trying to take the head off my car, I had to remove the spark plugs which I did, n after I took em out I noticed that the spark plug in cylinder 2 was blacker then the rest, y is that
Posted:
Tue Mar 16, 2010 3:11 amby suspendedHatch
Bad injector.
Get that fixed before you blow your motor. That cylinder is running rich, throwing off the O2 sensor and everything else. It's going to ruin your cat, your O2 sensor, and it could cause your ECU to lean out the mixture on the other 3 cylinders.
Posted:
Wed Mar 17, 2010 4:09 pmby forcefedEG
suspendedHatch wrote:Bad injector.
Get that fixed before you blow your motor. That cylinder is running rich, throwing off the O2 sensor and everything else. It's going to ruin your cat, your O2 sensor, and it could cause your ECU to lean out the mixture on the other 3 cylinders.
agreed, its getting too much fuel on that cylinder
your spark plugs should all be a toasty brown color on a well running engine
Posted:
Wed Mar 17, 2010 5:08 pmby elrompetoto
Check ur fule pressure regulater as we'll they go bad and start 2 allow fule 2 go in from the vacume line usaly the hole car runs rich aka all 4 cylenders r rich but one time on a freinds motor all the gass was going in one cylender..... so after u change ur injectore fun the car 4 an hour and then check 2 c if u have gas in the vacume line that gose 2 the fpr