Check engine light/Infiniti

Maintenance/Repairs
,
1

My car was overheating due to lack of coolant. I already refilled the radiator and is not over heating anymore. My check engine light is still on. Does anyone know how long am I suppose to run it for or after how long does the check engine light come off?
Thank you in advance for any help.

2

Is the CEL related to your overheating?Did you get the code read just in case its something else?Sometimes disconnecting the negative battery cable and reconnecting it after 1 hour will make it go away.

3

While you have a CEL lit up, there is a stored code. Why not get it read for free at a parts place?

After some number of on-run-off cycles the CEL will turn off if there is not malfunction being detected. In the mean time you can get it read.

4

Depending on the year/make of the vehicle, disconnecting the battery can cause more problems than it solves.

Read this first.

https://www.aa1car.com/library/battery_disconnect_problems.htm

Tester

5

Did you find out why you lost the coolant. If not then when the CEL goes out is a moot point.

1 Like
6

The insufficient coolant was due to changing the radiator and I didnt completely fill it back up. I made sure I did this time.

The vehicle is a 05’ Infiniti G35 sedan.

I have gotten the code read. It just said the car is overheating and there is no solution, which is how I figured I hadn’t put enough coolant.

I have not tried disconnecting the battery yet, but I will give a try.

7

I have witnessed several times on Toyota vehicles a fault for coolant temperature sensor out of range ( above 275 F ) that set during over heating, I erased the fault but it should go away after 2 good trips on it’s own.

8

Thanks. I will check if it may have a fault in the thermostat. Thank you guys again for the advice.

9

Thanks, disconnecting the battery for 2 hours took off the check engine light.

10

If there is a real problem, the light will come back on shortly.

11

Keep an eye on the coolant temperature gauge for a while, in the meantime.

12

I have and so far so good and no check engine light back on yet, but will still keep an on it for a few more days. Thanks guys.