As Salam O Alaikum!
yesterday i took my car (LANCER 1988 1.3 4G13) for a tune up before eid!
Installed New Plug Wires, New 3 Point Spark Plugs and got the whole car tuned up, the car was running perfect then both on CNG and Petrol!
But today when i started the car its engine stated vibrating and missing so i took it to the mechanic again he again adjusted the Distributor and other stuff but the problem remained the same then i asked him to look for the plugs if they are faulty so the 3 plug was fault
But the reason is i can not understand why it happened the plugs were installed brand new yesterday!
these are the pics of the Plug that was faulty!