The car was a 2008 Chrysler Sebring with a 2.4-liter engine. She complained that there were times when she stepped on the gas and the car would just idle along. Lately, she told me, the idling had been accompanied by a blinking icon showing two bars and a lightning bolt between them. She said that when the car wouldn’t accelerate, she could turn it off, restart it, and it would be OK for an undetermined amount of time.
Seemingly subtle variances in signals from sensors can trigger major changes in fuel and emission controls. Such was the case in my most-recent adventure into solving a drivability problem for a friend who owns a shop across town from me. This fellow doesn’t give up on problem jobs and sends cars to the dealer only for absolutely necessary things such as programming of computers. When we discussed the problem he was having with this 2004 Ford F-150 5.4 engine, it sounded like a problem that wouldn’t be too difficult to resolve.