I have an actron ODB 2 scanner and when I ask what the error code P1518 means it says Manf Cntrl Veh. Spd. Idle speed control Auxiliary Inputs. I have a Haynes Manual but the code isn't even listed. So I googled the code also and received a different meaning. Instead Ford Code reading online says p1518 means Intake Manifold Runner Control. Should I change the Idle Air Control Valve, IMRC, or both? Anyone have any suggestions? I cant afford a mechanic and trying to get engine light off to pass emissions. Thankx
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1999 Ford Escort Question: Error code P1518
Answer #1G. T. Service Center (2315 Answers) , Stephenville, TX - (254) 638-3236ProfessorG February 18, 2014, 18:12Master
That doesn't mean to change parts, it means to find and repair the issue that is causing that components issue.
Answer #2Greg's Orange Auto (11870 Answers) , Orange, CA - (714) 361-9386globalhelper February 19, 2014, 06:12Master
could also be a vaccum leak causing the could.as stated do not start repl parts its a control or parts issue but needs diag 1st