1997 Nissan Maxima no spark wont start

Tiny
KINGSKRAFT@MYMAX
  • MEMBER
  • 1997 NISSAN MAXIMA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 95,000 MILES
Car drove and then replaced transmission after car wont start no spark replaced crank sensor cam sensor still no spark replace ecu 3times replaced transmission 3 times still no spark replace sub harness to crank sensor replace main harness still no spark got current to the coils still no spark replaced ign coils still no spark replaced fly wheel still no spark all fuses good replaced ign switch still no spark what is the next step for me I am still working on this car need to know and get it started
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Monday, May 3rd, 2010 AT 1:40 PM

2 Replies

Tiny
ERNEST CLARK
  • EXPERT
First of all, the transmission has absolutely nothing to do with the ignition system. Also, is this car really worth all the effort and money? (Why replace the computer 3 times?)

Now, is the engine cranking over at all? And exactly what are you doing to determine there's no spark?

When there's a "No Spark" issue, the first place to begin is at the battery. Make sure the cables and terminals are tight and free of corrosion. Then check all ground connections, at the engine and frame.

The next step is to isolate the problem beginning at the spark plug and working your way back. If you've eliminated the plugs and wires, then you check the coil packs, connectors and wiring harness. After that, check the crank/cam sensors, including their connectors and wiring harnesses.

After you've eliminated all of these components, then you're looking at a bad computer. In your case, if you've replaced the computer with a known good computer, then your problem is in the wiring/connectors/grounds.

Finally, you shouldn't keep replacing components until you hit the jack pot. This hardly ever works and always costs you money. Instead, follow a logical diagnostic sequence, and thoroughly test each component before replacing it.
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Sunday, May 16th, 2010 AT 4:51 PM
Tiny
ELVISHOTLINE
  • MEMBER
Same experience I mean No Spark. Cam sensor was bad. Thanks for your input.
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Monday, September 17th, 2018 AT 3:08 PM

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