Skip the auto shop - Our mechanics make house calls

Q: Engine sputtering and "service traction system" control light coming on

asked by on

I have a well-maintained vehicle that ran fine until certain engine problems occurred. During acceleration, the engine started sputtering and showing reduced engine power by the dash light. It also happens if I restart it. There is also, the "service traction system" control light appearing. How to fix these issues?

A: The Powertrain Control Module needs to be s...

The Powertrain Control Module needs to be scanned to see if there are any stored codes. A possible issue could be the mass air sensor, as this sets up initial injection timing. The air mass meter needs to be removed to be inspected and possibly cleaned. You should also check the induction system connections, such as hose clamps and induction system piping, for cracks or looseness.

Other possibilities include contaminated connections at the Powertrain Module, but generally this will illuminate the Check Engine Light whereas a faulty air mass meter will not. You may want to enlist the help of a mechanic, such as one from YourMechanic, who will be able to read out and correct codes for your Traction Control Light and correct the engine's loss of power issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Problem with intermittent momentary loss of firing/power X-Trail model

The catalytic converter does help to contribute to back pressure, however, it may not be related to your loss of power issue. If the same issue existed before removing the catalytic converter, then it is likely not the problem. ...

Q: Random misfire on cylinder one - 2000 Chevrolet Corvette

Hello. Random misfires can be caused by a few different things. If the coil packs are all good then it may be possible that the issue is not related to the ignition system. A few other things that can cause...

Q: Left rear turn signal and break light not working.

Hi there, thanks for writing in. If all of those parts have been replaced the only other possible causes would be a fuse or a wiring problem. It is possible that that light may have lost connection somewhere between the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...