300ZX (Z31) Performance / Technical Discussions related to Turbo charging, Supercharging, Engine, ECU, exhaust, and etc. performance enhancements and Techical related.

cranks but wont start

Old Aug 26, 2011 | 04:12 PM
  #1  
z_man365's Avatar
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From: leesburg, fl
cranks but wont start

ok i have a 1986 non-turbo 300 and it cranks but wont run i have changed the relay (brown) not the black one though and i have changed the coil 2x and the module 3x can any one help me
Old Aug 26, 2011 | 06:50 PM
  #2  
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Joined: Aug 2005
Posts: 20,639
From: Wild Wild West, UTAH!
Welcome to ZDriver!

A motor needs 3 things to start:

-proper air
-proper fuel
-proper spark

Is there spark at the plugs? Are the injectors spraying?
Old Aug 27, 2011 | 11:14 AM
  #3  
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From: leesburg, fl
yes we we have fuel and the coil is like its intermitten it'll hit hit hit then be gone but the coil is brand new and we thought it was a relay but it didnt fix it either
Old Aug 27, 2011 | 06:09 PM
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