spark plugs???

I have a 93 ford mustand, 4 clyinder engine. I was changing the spark plugs and noticed this car has 8 spark plugs and 2 coils!!!

Ive never seen this before - whats up with this??

Reply to
psion
Loading thread data ...

Stock... it is absolutely stock..... 4 plugs fire all the time, the other four only fire when the PCM programming deems the need to fire them. Since your car is over 10 years old, you can see it's been around for a while.....

Reply to
Jim Warman

Nissan had an almost identical setup in the early 80's. I know of an '81 Nissan pickup that has it. Kinda weird popping the hood and seeing an 8 cylinder distributor cap on that motor. (Well, not quite. It has two coil terminals on it.....)

Reply to
Kruse

Your 4 had such a poor combustion chamber burn they added plugs to the exhaust side to lower emissions. But I'm sure it gets good gas mileage.

Reply to
Hooked 87

I had a '92 with this same setup. None of the power of a V8 and all of the tune-up costs.

It did get pretty good mileage though, especially for a heavy convertible. Would almost get 30 on a long trip of mostly highway driving, or even in town if I was nice it would get 27-28....

JS

Reply to
JS

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.