ellaschwarz5

Honda Legend engine power loss vacuum leak

I own a 2008 Honda Legend with a gasoline engine. The check engine light is on, and I've noticed less power, poor engine response, and higher fuel consumption. I suspect a faulty manifold pressure sensor, maybe from a vacuum leak. Has anyone had similar issues with their Honda Legend?

A 2008 Honda Legend owner experienced engine power loss, poor response, and increased fuel consumption, suspecting a faulty manifold pressure sensor due to a vacuum leak. Another person suggested checking the intake manifold for leaks, as a crack in a hose or gasket could affect sensor readings and cause rough idling. The owner had a workshop perform a smoke test, confirming a vacuum leak, leading to the replacement of the sensor and resolving the issue.

Did this summary help you solve your problem?

4 comment(s)

I had something similar with my Legend. Check the intake manifold area for leaks. A crack in a hose or a gasket could throw off the sensor readings. Is it idling rough too?

Thanks, I hadn't thought about idling, but it has gotten a little rougher. Could you tell me what parts of the intake manifold I should check? I don't know the layout very well.

It’s tough to say without seeing it. With the rough idle, it sounds like a vacuum leak affecting the sensor. A workshop can smoke test it to find the leak.

Thanks for the advice. I had it checked at a workshop and they did a smoke test. It was a vacuum leak, the sensor was replaced, and the repair was 235€. Thanks again for the insights; they were a great help.

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

HONDA

community_crosslink_rmh_model

LEGEND