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1993 Lexus LS 400

Tiny
WHARR25
  • MEMBER
  • 1993 LEXUS LS 400
  • V8
  • FWD
  • AUTOMATIC
  • 200,000 MILES
Engine computer was diagnosed as bad and replaced. Car still will not start. Tried 1 new ignition coil. Not sure if 1 is bad or both. Has 2 coils. Does engine computer failure cause engine coils to go bad, and if so, can 1 be bad and 1 not, or would engine computer short out both?
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Sunday, December 5th, 2010 AT 12:50 AM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Ignition coils can fail one at a time but a bad computer would not damage them unless they are sbujected to overheating due to computer failure.

Diagnostics do not confirms the computer to be faulty unless a substitute has been used to test.

What is missing now that the engine is unable to start? Ignition sparks or fuel problem?
What happened prior to this occurring?
What diagnostics had been performed so far?
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Sunday, December 5th, 2010 AT 5:05 AM

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