1998 Nissan Sentra Computer

Tiny
MICHELLE BUENDIA
  • MEMBER
  • 1998 NISSAN SENTRA
  • 4 CYL
  • 2WD
  • MANUAL
  • 136 MILES
Our Car will not turn over. We need to find out were the computer is in this car.
Sunday, February 14th, 2010 AT 9:33 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Don't be blaming the computer that's the last place you don't wanna be-Do below and determine the caused

Cranks but no start condition:

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems
with compression and valves opening and closing at the wrong time/broken or jumped timing
belt/chain.

No crank at all/nothing/nada:

Could be the starter, starter relay, park and neutral switch/clutch switch and ignition switch assuming the battery and connections are good
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Sunday, February 14th, 2010 AT 9:57 PM

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