What is the firing order and cylinder layout numbers for a 91 Justy? My friend just bought one for 500.00 but it has a miss and we changed plugs wires rotor and cap but has not helped it any.

As you know, the Justy has a 1.2L horizontally opposed 3-cylinder engine. Here's an illustration I found indicating firing order and cylinder layout. The cylinders are in numerical order from left to right when facing the engine. Going counter clockwise, firing order is 1,3,2.

http://z.about.com/d/autorepair/1/0/t/g/92848855.gif

Hope that helps.