I got a nissan frontier 2005 and it dosn't starts. it cranks very good, it has spark but i think it is too weak, however when i am craking sometimes it sound like runs for 3 seconds and after dies.i thought that it was the fuel pump so , i change the fuel pump and it stills same then i change the crack position sennsor and still same . i removed the oxigen sensor to check the cataliti converter, because i thought it was obstructedand i tried it but it crancks good but no starts. so i change the sparks plugs but stills same. i checked the injectors and they are good. so i don't know what it is the problem. thank you.
When you check for spark check all cylinders u can use a regular spark plug and wire ground the plug end set the gap a little higher than veh calls for then yuoll know if it can have enogh to run all cylinders if you find only 2-3 firing thats still considerd no spark. hope this helps THUNDERBOLTZ
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