twmson Posted November 19, 2010 Share Posted November 19, 2010 I have an 82’ 280ZX that just stopped running and will not start.  It is getting fuel.  Coil is firing.  With plug removed and touched to the block I get a very weak or no spark. But if I pull the plug away from the block I get a strong spark jumping from the plug to the block. Does anyone have any ideas as to what is going on with it? Quote Link to comment Share on other sites More sharing options...
WaiDai Posted November 19, 2010 Share Posted November 19, 2010 I have an 82’ 280ZX that just stopped running and will not start.  It is getting fuel.  Coil is firing.  With plug removed and touched to the block I get a very weak or no spark. But if I pull the plug away from the block I get a strong spark jumping from the plug to the block. Does anyone have any ideas as to what is going on with it? check your wiring, cables, the electrical stuff. clean battery terminals with a solution of baking soda and water, or scrub the terminals, also clean connectors. the spark plug should be grounded when trying to test for spark, do you know the difference between a good spark and a bad spark? just wondering because i didn't really know till experiencing both. if your spark is weak, check gapping on plugs, then spark plug wires, then distributor cap and rotor, then coil. if all fails perform a compression check and start from bottom up using the beginner guide. Quote Link to comment Share on other sites More sharing options...
sweetleaf Posted November 20, 2010 Share Posted November 20, 2010 How did you check the fuel pressure? Quote Link to comment Share on other sites More sharing options...
roger.svoboda Posted November 21, 2010 Share Posted November 21, 2010 (edited) fuel pressure test rig you can make this for under $20 goes between the filter and the fuel ring Edited November 21, 2010 by roger.svoboda Quote Link to comment Share on other sites More sharing options...
twmson Posted November 21, 2010 Author Share Posted November 21, 2010 what should the pressure be? Quote Link to comment Share on other sites More sharing options...
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