Day time running lights are flashing engin is off

engine light flashes ???? Your best bet , take it to a qaulified repair shop , right now , damage the catalytic converter is happening .
Flashing check engine light CarMD

Is that back to red after a couple days, or back to black after a couple days.
I imagine that the sensor works off pressure. Is the sensor before, or after the filter. After it runs for a while does it build up dirt in the filter. Then when it sits the dirt settles, and runs good for a while. I've seen that before when there's dirt in the tank.

I have a similar problem - every once in a while all of my dash lights flash on like the car is trying to conk out/stall (I have a 2006 Jeep Grand Cherokee) - the car has no loss of power and runs fine, just all of the dashboard lights and warnings come on like its going to stall. Happens on dry days, wet days, cold days, warm days - at least 3 times a month. trouble is, because its intermittent no one can find the problem.

well if the daytime running lights flash fast then stop that means there is a problem with the DRLs,usually a burnt out bulb,,check tha firstif all ok check if there are any trouble codes in the computer

Hi it sounds like you have a temp sender playing up I think there are 3 on your engine,

thats when you need to get it scanned sounds like water is getting in a sencer o2 perhapes but scan it for the code it should be stored in the memory

When the service engine soon light is flashing there is a miss fire in the motor if you look in your owners manual it will tell you that.The same thing happend to me and it endid up to be the cat...

Drive it into a dark place, or wait till dark. When it's running poorly, see if you can see any spark flying around. It sounds like plug wires.

There is a day time running light module, change it, I think it is behind the headlight switch.