Apologies if this is the wrong group to ask but I need help…
Every winter my car goes into limp mode when the temperature drops to freezing levels outside (around 0*°*C). Anybody I have asked has said it can’t be to do with the cold but the car is completely fine during the other 10 months of the year when it’s warm out and soon as it’s cold it happens. No other common denominators other than it’s freezing temps, I start driving and it goes into limp mode.
Any suggestions on what to check would be appreciated. It’s a 2016 Corsa, nothing fancy but nothing super old with about 40k miles on the clock.
That usually indicates a circuit issue. Cold makes things shrink and retract. Once it runs for a while does it clear up? If so the time it takes could help you find the problem. First area to heat up would be under the hood. Next would be the heater core and out from it. I would start from there. Say you start it and it takes like 5 minutes before it corrects, that would likely be something in the engine bay. You might be able to toss a scan tool on it and see what the various temperature sensors show during warm up. Toss a portable heater in the cabin, with it warm inside does it still act up? Discover it’s likely under the hood (most likely) take a heat gun and use it on each component and see if it changes. I would look at the crank sensor, cam sensor(s) intake throttle body and the MAF as those could all cause that problem. If you start it and heat up the crank sensor and it runs better, you have a winner!