.044 inch ( according to motorcraft . com )
If it is the 2.3L it probably has 8, 2 for each cylinder which is mainly for ease of starting and getting ~15% better gas mileage.
According to one of Fords websites : A 1990 Ford Probe , 2.2L four cylinder engine has the spark plugs gapped at : ( .044 inch )
The 2.3 liter 4 cylinder engine has ( 8 spark plugs ) , twin plug ignition system The 2.9 liter and 4.0 liter V6 engines have ( 6 spark plugs )
8 spark plugs
The 1990 Ford Mustang 2.3L SOHC had 88HP
arnt all spark plugs just below the valve covers on all engines ???
how the sequence of spark plugs goes on the engine of 1990 Toyota cressida
You should find it in the drivers side cylinder head between spark plugs #3 and #5.
They are right there on the top of the engine.
Don't try it.
It is either a spacer or an isolator.
no... silly