Q: Why does my car throw throttle body and traction control codes, when decelerating?

asked by on February 21, 2017

Throttle body has been replaced codes cleared. battery disconnected. the car runs great until it warms up and you slow down to around 40 mph. At that point it throws check engine, throttle body, and traction control warning lights, and immediately goes into safe mode. everything was cleaned before new part was installed. I have checked to make sure there were no air leaks. I was told the car has a learning process and should be driven through several drive cycles to learn perfect positioning for the new throttle body. But it has been at least four days of cycling it. Is it possible to get a defective part from the manufacturer? And is there anything else I should try before replacing the new part?. The make of the new part is Dorman.

My car has 45000 miles.
My car has an automatic transmission.

Hi there. In the case where an aftermarket throttle body is used as a replacement of an OEM component, these type of problems are common. The typical solution is reprogramming the ECU, but that’s something done at a dealership. I would suggest removing this aftermarket component and installing an OEM throttle body for the Dodge Avenger.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Sunroof won't close
Hi. The electronic portion of your sunroof includes the sunroof switch, sunroof motor and body control module (BCM). The BCM supplies power to the sunroof motor when the operator pushes the switch. In some cases, a simple reset is all...
engine knock
If there is engine knock after running low on oil and it does not go away after putting oil in it, then the damage is done. The engine bearings are bad and more than likely ruined the crankshaft, rods, pistons....
need the water pump replaced would this also involve the timing belt
It would be recommended to replace the serpentine belts (https://www.yourmechanic.com/services/serpentine-drive-belt-replacement), water pump (https://www.yourmechanic.com/services/water-pump-replacement), and timing belt tensioner pulley with the timing belt (https://www.yourmechanic.com/services/timing-belt-replacement). You might even consider replacing the valve cover gasket (https://www.yourmechanic.com/article/how-long-does-a-valve-cover-gasket-last). If would like to have these repairs...
My van transmission started slipping and the van is making a whining sound now. I had transmission fluid filled but it is even wor
It would be a good idea to check to be sure that the fluid level was not overfilled. Too much fluid creates shifting and operational problems just as too little fluid will. So, the level should be carefully verified. If...
I have a 1997 dodge ram 1500. It is not getting up to speed and acts like it has no power.
Hi there. Check the fuel pressure on the fuel rail and see if there is at least 30 psi. If the fuel pressure is low, then either the fuel filter is plugged or the fuel pump is not producing enough...
Where is the fuel pressure sensor B located on a 2013 Dodge Ram longhorn 5.7 liter hemi located?
The sensor is located on the fuel rail on the driver side by the brake booster. If you need further assistance locating the fuel pressure sensor (https://www.yourmechanic.com/services/fuel-pressure-sensor-replacement), then seek out a professional, such as one from Your Mechanic, to help...
2002 Ford Mustang Key programming but only one original key
All you need is to have one original key that works to program new keys. All you do id turn on the ignition to run position with good programmed key and then turn off ignition and pull out key and...
What could cause a popping noice when I hit the breaks?
The noise could be caused by too much rotor runout, the rotors might have thickness variation, brake parts could be loose (improperly torqued), and/or bushings could be worn. If you request a vehicle noise diagnostic - brake noise (https://www.yourmechanic.com/services/car-is-making-a-noise-inspection), the...
PO420 Efficiency below threshold bank 1. Catalytic converter or O2 Sensor?
Hi Justin. Thanks for contacting us today. At first glance, the numbers you listed indicate that the catalytic converter is likely clogged. You might want to read this article about the OBD-II trouble code you've listed (https://www.yourmechanic.com/article/p0420-obd-ii-trouble-code-catalyst-system-efficiency-below-threshold-bank-1-by-jamahl-walker), as it will...

Related articles

A Buyer’s Guide to the 2012 Dodge Journey
The The 2012 Dodge Journey is easy to drive, and it’s not so large that you will have a difficult time parking it. It’s an attractive vehicle that has the power you need whether you are hauling a full carpool,...
2012 GMC Acadia vs. 2012 Dodge Journey: Which One Should I Buy?
The GMC Acadia is classed as a midsize SUV, which is able to seat between six and seven passengers comfortably. The 2012 Acadia offers three rows of seating, so passengers will feel the roominess that is typical in a true...
The Best Used Cars to Buy If You Have a Tiny Parking Space
In In many cities parking spaces come at a premium, so you only want to purchase one small space. This small space will end up dictating what vehicle you purchase, so we’ve rounded up some great candidates. Must-haves Arm yourself...