Recommendation for high mileage vettes(270K miles on mine) or P0121 code fix
09-30-2014, 04:52 AM
#21
Racer
Thread Starter
09-30-2014, 04:54 AM
#22
Racer
Thread Starter
09-30-2014, 04:57 AM
#23
Racer
Thread Starter
I use to work about 3 hours from home and would return home everyday - 5 days a week. Mileage paid by employer of course. I did that for just under two years. I also go to Florida about 5 times a year from Charlotte it's about 550 miles each way. Right now my drive to work is about 35 miles.
10-12-2014, 02:26 PM
#25
Race Director
that's awesome. and here i am thinking i am a higher mileage '08 at 95k lol
10-12-2014, 02:39 PM
#26
Le Mans Master
Member Since: Jan 2006
Location: Down south in Dixie
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Jan, you have given us all hope that ours will do the same. 
10-12-2014, 09:13 PM
#28
Janicept: 
Only 70,270 miles to catch up with you! You could slow down a little, and let me.
Only 70,270 miles to catch up with you! You could slow down a little, and let me.
10-13-2014, 09:57 AM
#29
Burning Brakes
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just curious as to what type of fuel you use......
on the miles...have 2011 gs with 46 thousand on it.not a daily driver and live in illinois.first problem last week.needed front turn signal bulb 
on the miles...have 2011 gs with 46 thousand on it.not a daily driver and live in illinois.first problem last week.needed front turn signal bulb
10-13-2014, 09:56 PM
#30
Burning Brakes
Have anyone cleaned theirs themselves. I've heard the car has to relearn the throttle position and some other crazy things happens. Going to do my silverado and vette this weekend. 
10-13-2014, 10:22 PM
#31
Tech Contributor
Member Since: Oct 1999
Location: Charlotte, NC (formerly Endicott, NY)
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ECM automatically learns you don't need to do any special relearn procedure. You can clean the throttle body but the sensor is a different can of worms. A lot of times throttle position sensor issues can be due to the wiring going to the sensor and not the sensor itself. P0121 is indicative of a potential air leak around the throttle body so removing and cleaning the throttle body could lead to the leak being fixed once the throttle body is reinstalled since anybody doing so probably would replace the gasket.
Bill
Bill
Last edited by Bill Dearborn; 10-13-2014 at 10:32 PM.