07-04-2012, 03:25 PM
i believe my boat may need a new idle air control valve. Its the 1999 LTR in a maristar 230. The boat idles kinda rough and if i give it any load when cold it just dies. it runs better one its warmed up a bit and doesn't have any problems up to the 5200 red line. Even when at temperature though it the idle is rough and surges some. I replaced the iac valve with one from o'riley part#31023, but i'm afraid maybe its not the correct mapping even though the part looks identical. Any suggestions or part numbers would help!