I have a 2001 Honda Civic Ex that goes into limp mode when the weather is hot. It only happens in hot weather: I drove it during the cooler months, and no problems. Also, it doesn’t have any problems if I drive it at cooler times of the day (evening, night).
When the weather outside is hot (~75+ degrees) I can only drive my car for about 20 miles before the check engine light comes on and it goes into limp mode, where the engine just shuts down and I cannot accelerate above 30mph. The engine is still running, but when I push on the gas pedal I can only go like 20-30mph. This happens when the ac is on or when the ac is off, but will happen sooner if the ac is on.
When this happens, I pull over to the side of the road and wait several minutes. Then I can restart my car and drive a few more miles, and then it happens again: limp mode. Then I pull over again, wait, and restart it. It starts fine.
In the winter months I don’t have any problems, and my car drives fine.
I have had the thermostat replaced, and the temperature gauge does not indicate overheating.
Please help me. I really hate my car right now.