Skip the auto shop - Our mechanics make house calls

Q: Warning light not going away.

asked by on

I installed new spark plugs and a throttle body. The red lightning bolt is still on.

Hi there. Since the Engine Light is on it would help to know what the codes are in the computer. To get the codes the computer would need to be scanned with a computer scan tool. The codes would help to determine what is going on. From my experience with this engine the most common issue is a misfire code. Most of the time it is caused by a valve seat issue inside of the engine which results in a compression problem. Doing a compression test would be the best way to verify this. You should enlist the assistance of a mechanic that can scan the computer, like one from YourMechanic.

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

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

Get a quote

What others are asking

Q: Engine rumbles and vibrates while idling

You might want to try watching my video "How to Fix a Car That Idles Poorly." You just take the plastic plenum that goes from the air filter to the intake and get some throttle body cleaner. Spray the throttle...

Q: 2008 Chrysler 300

An automotive scope should be used to see the actual secondary ignition waveform in that misfiring cylinder. Even new coils and new injectors will not function if the circuit supplying those components has a fault. The other possibility is there...

Q: Car won't accelerate past 25 mph and makes deep noise when you try too replaced o2 sensor maf sensor/ throttle body does rattle

Hi there. It is quite possible that your car has entered what we call a fail safe or "limp mode" due to an error code being activated and stored in the ECU. This will occur when the ECU or a...

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...