Can a bad Spark Plug Cause the Rest of the Plugs Fowl out?
#1
Can a bad Spark Plug Cause the Rest of the Plugs Fowl out?
If say you got one plug with the Tab over the electrode is burned away ,can it cause the rest of the plugs to Carbon Foul?Like throwing the engine off Kilter?
I have always thought if one cylinder wasnt fireing right would effect the ramaining cylinders.....Thanks
I have always thought if one cylinder wasnt fireing right would effect the ramaining cylinders.....Thanks
#2
My guess is that the one cylinder went dead. So, that cylinder was pumping unburnt air into the exhaust system, giving the computer indication of a lean condition. The computer then richens up everything in an attempt to get back to stoichiometric. This causes the other 7 cylinder to run overly rich and fould the plugs.
#4
Originally Posted by engineermike
My guess is that the one cylinder went dead. So, that cylinder was pumping unburnt air into the exhaust system, giving the computer indication of a lean condition. The computer then richens up everything in an attempt to get back to stoichiometric. This causes the other 7 cylinder to run overly rich and fould the plugs.
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#8
Originally Posted by LSXNV
it would show the dead cylinder as a rich condition with the un-burned fuel.
I've run engines rich enough so that you start mis-firing cylinders, but it actually indicates lean on the WBO2 due to the un-burnt O2 in the exhaust.