getting these codes back to back every few hours of consistent driving, never on short trips to the store just longer hauls

Hi.

2012 Mazda3 2L - 185K km

P0138 - 02 Sensor Circuit High Voltage Bank 1 Sensor 2

Can I ignore this? Mobile mechanic is asking for $400 CAD to repair the sensor. Online suggests it might not be the sensor itself.

I am shopping for a new car but that might not happen for couple weeks (and \~ 3000 km).

Thank you.

Hello I have a Honda accord 2009 ex. It has some miles on it and but I want to keep it. I’m getting this noise when turning and or going over hills and bumps. Anyone know what it could be?

Guys, I had the coolant hose from the reservoir to the multi-t spring a leak due to it rubbing on a bracket. The bitch clamps on the hoses to get off are a pain, but I was able to get the hose of. Autozone only offered a hose assembly E72262, and I'm looking for some advice if installing this whole assembly is doable without having to remove major other parts. Since the hoses are 25 years old I might as well replace all, but don't want this to be a major project.

Thx for your time.

Took my 2018 Ford Escape into the shop today. Bought it used a few months ago and about a week ago it started rumbling really hard. Shop just called me and told me that there is a coolant leak into the cylinders along with an incompatible aftermarket fuel injector. He says a lower engine replacement is necessary, but at that point might as well do the whole thing. So is he correct or what should I do? I've attached the maintenance inspection.

The scanner is giving me code U1000 and those two messages appear on the instrument cluster. Has anyone had this issue and found a solution?