kennn86
New Member
At cold start car idles at approximately 1500 rpms, slowly raising to 2500 rpms, after a few minutes it will start surging from 1100 to 2500 rpms, After few more minutes will often start surge from 1200-1400 (or continue to surge 1000-2100). Then randomly change back to surging from 1100 to 2100.
If you disconnect the IACV plug when surging from 1100 to 2400, it drop back to surging from 1000-2100. When surging from 1200-1400, no change is noted in RPMs (or therwise) when connecting/disconnect the IACV. Surging continue when driving under 1500 or so rpm.
Mechanic said radiator was bled several times, i found no vacuum leaks. Also recently had a EVAP Emission Control System Leak Detected code. Would anyone have any thought how to proceed.
Thanks in advance
If you disconnect the IACV plug when surging from 1100 to 2400, it drop back to surging from 1000-2100. When surging from 1200-1400, no change is noted in RPMs (or therwise) when connecting/disconnect the IACV. Surging continue when driving under 1500 or so rpm.
Mechanic said radiator was bled several times, i found no vacuum leaks. Also recently had a EVAP Emission Control System Leak Detected code. Would anyone have any thought how to proceed.
Thanks in advance