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01-23-2013, 10:13 PM #1
- Join Date
- Nov 2012
Cleaned throttle body idle issue.
Cleaned my throttle body on my 2008 silverado 5.3l and idling a little off. Seems to be too high, anyone know should I take to dealer to recalibrate or is there another option? I decided to clean after check engine came on and code p0121 was reading on diagnostics.
01-23-2013, 10:51 PM #2
- Join Date
- Apr 2010
- Piermont,NY, back in Northern NJ now, But may be in IL soon....
Sounds like a Job for Seafoam...08 Z71 Avalanche Mods to date: K&N CAI,Hellwig Swaybars and End Links, Corsa Sport Exhaust, Superchips Programer,IPCW LOF & 3rd brake light and tails, AMI Gas door,Show Hooks and Door locks, Enkei Wheels, with Pirelli tires, StreetScene Bowties, Grant Steering wheel,Muth signal mirrors,SSBC Big Brake kit,Huskyliner Mug gards,Floor mats and Hood shield, McGard Lug nuts and locks, Bedrug, Cervini's Ram Air hood,35watt HID Fog lights, Sylvania bulbs all around ZXE's Highs and Lows, WhiteNight Back up lights,Sirius and HD Radio, SnugTop sitting on deck now Got a Softopper on now,Tempress Boat Hatches.... New Bilstein shocks are on... New Mods coming soon..... X
01-24-2013, 01:18 PM #3
what product did you use to clean ? high idle would indicate a air leak/vac leak.
the 121 means the MAP and the TPS are out of wack. not within the programed operation. usually a leak.
01-24-2013, 03:56 PM #4Cleaned my throttle body on my 2008 silverado 5.3l and idling a little off. Seems to be too high, anyone know should I take to dealer to recalibrate or is there another option? I decided to clean after check engine came on and code p0121 was reading on diagnostics.
The only way that I know 100% works is to use the Tech 2 to do a relearn of the throttle body position sensor so that the computer will put the throttle body back at its normal idle position.
2001 Silverado Reg. Cab Not-So-Base -- SOLD
2003 Avalanche Z71. No Cladding. Check out my Mod thread.
1974 Triumph Spitfire 1500 - Work in Progress
2003 Sierra 3500 Duramax. The Newer, Better Work Truck
01-24-2013, 05:36 PM #5
- Join Date
- Jan 2009
- Norwalk, Ohio
- Blog Entries
This why I like the pre 98 vehicles, TPS can be reset by holding the gas pedal 3/4 way down and starting the vehicle and letting off the gas and shutting the vehicle off. BAM!! Tps reset lol!!!
Good luck with your issue!!
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