Kevin322 Posted November 23, 2011 Share Posted November 23, 2011 Hello, I'm new here. I have a 1998 Honda Accord Coupe with a 2.3L straight 4 with a 5 speed manual. Last night when I was driving home the car was idling at around 200 RPM when the engine was warm. And then this morning it started fine, ran fine, but as the engine temperature increased the idle decreased, as it should. But even when it wasn't fully at the proper temp it was idling at 500 RPM. When it warmed up to the proper temp it was idle at 150, yes 150. It was touching the 0 RPM line, but it didn't stall. It has had problems in the past with initial low idling, like when you disengage the clutch, but never constantly idling so low. It accelerates fine, and the check engine light isn't on. What is most likely the cause? Link to comment Share on other sites More sharing options...
Raley Posted November 23, 2011 Share Posted November 23, 2011 fitv or iacv you know the bottom line on a tack is 500... so im guessing you are touching down at 500. if it is running fine with just a low idle I would leave it alone... lower idle means less gas being used at a stop light. Link to comment Share on other sites More sharing options...
Kevin322 Posted November 23, 2011 Author Share Posted November 23, 2011 fitv or iacv you know the bottom line on a tack is 500... so im guessing you are touching down at 500. if it is running fine with just a low idle I would leave it alone... lower idle means less gas being used at a stop light. Thank you for replying. I was thinking that it is the IAC valve also. But it was idling extremely rough at 200. The bottom line says 0 and then there are 3 dashes until it says 1. http://imagehost.vendio.com/a/32018290/aview/18171615141312111098765432104c_1_b.JPG Link to comment Share on other sites More sharing options...
Raley Posted November 23, 2011 Share Posted November 23, 2011 oh, different than my civic... but yeah, probably just a gummed up hose or something... some say seafoam can clean it out, i always just rip it all apart and bath it in carb cleaner. Link to comment Share on other sites More sharing options...
d12cons34 Posted November 25, 2011 Share Posted November 25, 2011 i want to buy honda civic and i want your suggestions on that friends BMW Accessories Link to comment Share on other sites More sharing options...
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