I'm at witts end with my E38 with a check engine light

kirbinster

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NJ
#1
Car failed NJ inspection due to chk engine light. Took to local bmw
mechanic (not stealer). He said it was knock sensor. He said he could
just plug one in and ground it to firewall so I could pass inspection.
That did not work, as after clearing computer it would still claim
knock sensor was reading knocks when it was not. Took it to Steve at
Vicari Motors and he says it is DME. He has a test set with three
components so he can test with a new DME and not get it hard coded.
When he did that car was fine. He told me to take it to BMW as it
should be covered under 8 yr 80k miles Fed Emisions warranty (car in
an '01 with 60k miles).

BMW of Morristown says it is a knock sensor not DME, although we proved
it to be DME and they want $1,000 to replace knock sensor but will not
guarantee I pass inspection. What do I do now????
 


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