Subaru is recalling over 400,000 vehicles in the U.S. to fix problems with engine computers and debris that can fall into motors.

The first recall covers 466,000 Imprezas from 2017 through 2019, and 2018 and 2019 Crosstreks. Subaru says the engine computer can keep powering the ignition coil after motors are shut off. That could cause a short circuit and blown fuse.

Dealers will update software and replace coils and front exhaust pipes if needed.

The second covers 205,000 Imprezas from 2017 through 2019 and 2018 Crosstreks. The aluminum positive crankcase ventilation valves can fall apart. Debris can enter the engine and cause power loss.

Dealers will replace valves if needed. If a valve has separated and parts can't be found, engines will be replaced.

Both recalls start Dec. 13.


Krystal probes credit card payments

The Krystal Co., is investigting a possible breach of security in its payment processing of credit cards this summer.

The fast-food restaurant chain said Thursday that "a security incident that involves one of the payment processing system" may have compromised at many of the company's 342 restaurants in 10 Southeastern states, including 18 in the Chattanooga, Cleveland, Dalton and Athens, Tenn., area.

"Our company has retained a leading forensics firm and is conducting an investigation to determine the extent to which information in Krystal's systems may have been impacted," Krystal spokeswoman Angela Johnson said in a statement .We are cooperating with law enforcement and have also notified the payment card networks of the investigation."

Krystal said it uses multiple payment processing systems and not all are impacted by the potential security breach. Johnson said the company has taken steps to contain and remediate the incident and set up a dedicated website — — to provide more information. Customers also may call 1-800-457-9782 for updates.


Mortgage rates up to 3-month high

U.S. long-term mortgage rates rose slightly this week to their highest point in 12 weeks, though they remain far below their levels of a year ago.

Mortgage giant Freddie Mac said Thursday that the average rate for a 30-year fixed mortgage rose to 3.75% from 3.69%the previous week. That's down from 4.9% at the same time last year and by historic standards is very low.

Lower rates have helped reinvigorate the housing market, which stumbled last year. Sales of existing homes reached a 17-month high in August, though they fell modestly in September. New home sales jumped 15.5% in September from a year earlier. Single-family home construction has also ticked up.

The average rate on a 15-year mortgage moved up to 3.18% from 3.15% a week ago.

Freddie Mac surveys lenders across the country between Monday and Wednesday each week to compile its mortgage rate figures. The average doesn't include extra fees, known as points, which most borrowers must pay to get the lowest rates.