I have a 1990 Audi coupe quattro. I recently changed the head gasket and timing, the car cranks but won't start. There is no spark, so I change the ignition, distributor cap and rotor, still no spark. I have no clue what's wrong. Can somebody help me please?

 

Check the engine ground straps to the body. Also double check all your electrical connections. You may have missed something.

 

thanks dave944 I will definitely check that.