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Michael Klein (Malibumk)
Junior Member
Username: Malibumk

Post Number: 93
Registered: 5-2002
Posted on Thursday, September 04, 2003 - 5:07 pm:   

Greg:
It's a standard OBD II reader for all of these cars...nothing special. And, once the MIL light is on, just driving won't do it...and neither will disconnecting the battery. You need a reader.
Greg McCarthy (Shuey2k)
New member
Username: Shuey2k

Post Number: 23
Registered: 5-2003
Posted on Thursday, September 04, 2003 - 4:04 pm:   

I tried that and it did not go out. I really think that on a 355 the light stays on until it is downloaded. Anyone know different?
Bill Wann (Bumper)
New member
Username: Bumper

Post Number: 3
Registered: 9-2003
Posted on Thursday, September 04, 2003 - 2:10 pm:   

This is a long shot but it works on my Porsche , If you disconnect the battery for a few minuts this shoud do it and the light should go out .
Good luck .
Greg McCarthy (Shuey2k)
New member
Username: Shuey2k

Post Number: 22
Registered: 5-2003
Posted on Thursday, September 04, 2003 - 1:54 pm:   

That's what I thought but I was under the impression that the OBD II reader in general is a 5 pin connector and the rest of the world uses pins 1-4 while Ferrari uses the 5th pin. Please don't tell me I have to drive 2 hours to get this light to shut off? Thanks Bill and Mike for your input
Michael Klein (Malibumk)
Junior Member
Username: Malibumk

Post Number: 92
Registered: 5-2002
Posted on Thursday, September 04, 2003 - 12:13 pm:   

Greg:
And after you reposition the 2nd 02 sensor both sides ( I can't comment if this will work or not) then you'll need an OBD II reader to reset the Ck Eng. Light...it won't go out by itself.
MK
Bill Wann (Bumper)
New member
Username: Bumper

Post Number: 2
Registered: 9-2003
Posted on Thursday, September 04, 2003 - 11:42 am:   

Hi Greg
Did you remove the second o2 sensor afer the cats ?
This sensor should be open to fresh air and its hole in the pipe plugge.
I had the same problem on my Porsche .
Greg McCarthy (Shuey2k)
New member
Username: Shuey2k

Post Number: 21
Registered: 5-2003
Posted on Thursday, September 04, 2003 - 10:51 am:   

Yes, I know this subject has been talked to death but I need an answer. I have a 99 that I de-catted 200 miles ago and have had no issues. However, I was stuck in bumper to bumper traffic last weekend and the light went on and will not go off. So, I realize given no loss of performance that it is more than likely an 02 sensor either working well and picking up the differences downstream or I have a dead sensor. Is there anyway short of going to a FNA dealership to resolve? Thanks

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