1996 Nissan Sentra Q&A  1996 Nissan Sentra Question: 96 sentra
timing chains,gears all have been replaced but it wont start any
ideas  everything has been checked firing, fuel,compression but
it will not start it just backfires but never starts - Answer 1
Re-check chain alignment , if it's backfiring(through throttle
body) then your valve timing is possibly off. - Comment 1 thank
you atleast now i have somewhere to start - Comment 2 Other
thought...........Had an old mitsubishi brought to me years ago
, (in pieces) , put it together and was spitting back through
intake .....ended up this thing had 3 converters on it and ALL 3
were stopped up causing excessive backpressure (engine can't
exhale) loosened exhaust to create a leak and it fired right up.
IF you haven't started taking the chain stuff back apart , that
might be something to investigate? -