Hi, have a 2009 accord 2.4 4cy manual few days ago the speedometer milage and cruise stopped working. Order a new speed sensor put it in this morning and it idled fine but as soon as I put in reverse and went to go it died and wont start. Any help appreciated not finding much.

 

Don't see how the speed sensor would stop the engine from starting??
What is missing?? Spark, fuel, compression, timing, air flow?