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Old 08-14-2015, 02:07 PM   #1
machoSS
 
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Drives: 2013 Camaro ZL1
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speed sensor

I recently changed out my tire setup on my ZL1 and have 17s in the front and 18 in the back. car keeps throwing a speed senor code which locks me out of reverse, and during high rpm shifting bogs down. Also randomly the speedometer will stop working and not read my speed at all. I would clear the code and 5 minutes later the same issue. Has anyone else had this happen? what did you do to fix?

Thanks for your help
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Old 08-14-2015, 02:26 PM   #2
nivek
 
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From what I remember, the wheels have to be within a certain percentage diameter of each other. I cannot remember the percentage. Why would you do this in the first place?
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Old 08-14-2015, 04:20 PM   #3
machoSS
 
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drag setup ... skinnies in the front and drag radials in the back
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Old 08-14-2015, 10:28 PM   #4
1MtnGoat
 
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I've read that the front and rear wheel diameters must be within 3% of each other or it will cause problems.
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Old 08-17-2015, 08:41 AM   #5
nivek
 
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Quote:
Originally Posted by machoSS View Post
drag setup ... skinnies in the front and drag radials in the back
Ah, makes sense now.
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Old 08-17-2015, 10:31 AM   #6
mrvenicess

 
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I run 17s front and rear with no issues but as others have said I bet its the 17" front with the 18" rear that the computer doesn't like.
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