I'm afraid I cannot help you with the test lamp.

The firing order is 1 - 3 - 4 - 2.
Cilinder 1 is nearest to cam belt.

When no 1 is in Top Dead Center, 4 is also is TDC. Either 1 of them should be fired at that moment, not 2 or 3!!

Check for correct cam belt placing:
The groove on the alternator pulley should match a "0" mark on the cam belt cover.
Or with the cover removed: the mark on the cam pulley should match the mark (small "dot") on the head.

Don't forget to check for airleaks too!

Cheers