I have a similar issue with my 2017. CEL came on. Took to dealer, informed its bad fuel injectors. $1400 quote. Contacted Honda N. A.. After a bit of back and forth, they agreed to pay for half the repair. So I paid $700, got new injectors.Really good news but also some bad news. So my dealer charged 765.55 for fuel injector replacement. I'm not sure why it's so much less than other owners but that was the total. 479.93 for parts and 375.72 labor plus applied a coupon for $90 off. I continued to persist with Honda corporate and asked for an escalation to the supervisor. The supervisor approved a $400 credit to be used towards future service. So despite having 110k on odometer they still mailed me the credit. I highly recommend asking for a supervisor if you get denied for the goodwill. The bad news is that When I was looking under the hood I discovered the coolant overflow tank was empty. I brought this to the dealers attention and they said that coolant just needed to be replaced. However, my car was still rough idling despite new injectors. I did some research online and found one other CRV owner who had the same issue which was a blown head gasket. I brought it back to them three times and each time mentioned the head gasket (they kept refusing to check bc they said that it's too unlikely) which eventually led to them performing a leak down test and confirming that the had gasket is blown. I believe this may have happened due to the fuel injectors failing because I was driving the car for a couple of months as it was misfiring and the car was running extremely rough, So I think it put too much stress on the head gasket. Anyway, that was the last straw and so I traded the car a couple of days ago. The lesson is that if you're getting warning lights and the car is running rough, Don't wait for Honda corporate to get back to you about the credit, just go ahead and fix it and deal with them later. I hope this helps.
3 weeks later, CEL comes on again. This time running rough and stalling. Towed to dealer. Informed either blown head gasket ($4500) OR cracked head (addt. $1500) except there are no heads available, at all.
Contacted Honda N.A. again. They were no help. Contacted service manager. After talking to the tech, SM comes back with its probably a cracked head because it never overheated. Oh, and he said the turbo will have to be replaced as well because it cannot be removed from the head with out ruining it.
New estimate $7000! FML. Owe $16k still