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1993 Audi 90 will not start

Tiny
PLWORKING
  • MEMBER
  • 1993 AUDI 90
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Car cranks fine, no spark.
What is the immobilizer all about, can it be reset, how? Is that the problem?
Is there a crank or engine speed sensor on this engine? Where are they and how are they tested?
Won't start, where do I start?

I am electronicly competant. Need troubleshooting guidance ASAP. What do I check and in what order?

Paul
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Monday, January 11th, 2010 AT 9:09 PM

2 Replies

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
I don't think the immobilizer has anything to do with it as it kills the starter. I would like you to check the coil for resistance. Using the pic below and a digital multi meter do the following. Check resistance between connector and the coil. First unplug the coil and check ohms between term 1 on the term and its matching term on the coil, do this for term 2 and 3 as well. It the ohms are not.5 to 1.0 ohms replace that coil. Let me know what you find and we will take it from there.
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Wednesday, January 13th, 2010 AT 10:19 AM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
How did it go?
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Friday, January 15th, 2010 AT 9:59 AM

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