Hey everyone. I’ve got a 2002 Ford Escape that sometimes idles rough. I ran the codes and got P0171 and P0174. Took it to a local mechanic, but they couldn’t fix it. They couldn’t find any vacuum leaks, and the spark plugs are fine. The O2 sensors were replaced just a few months ago. Next, I’m thinking of cleaning the MAF and replacing the air filter, which is probably due for a change. I don’t want to keep throwing parts at it, and I feel a bit stuck. Any suggestions or fixes would be really helpful.
I’d check the rubber boot between the air filter box and the throttle body. Sometimes they get splits where the bends are.
Jessie said:
I’d check the rubber boot between the air filter box and the throttle body. Sometimes they get splits where the bends are.
It seems to be in good condition.