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Inline 5cyl Petrol engine tech / Idle surge 93 5 cylinders. 5 speed
« on: September 24, 2017, 12:48:00 pm »
So my 93 has a weird issue where if you're sitting idling and rev the engine the idle will jump up and down between 1500-2000rpm till the fans kick on and then it'll settle down to 875rpm.
This also happens when driving. If you just push in the clutch when coming to a stop the idle will start bouncing from 1500-2000rpm. If you down shift and get the rpms below 1200 it'll idle normally.
New VDO idle valve and no vacuum leaks.
Any ideas?
This also happens when driving. If you just push in the clutch when coming to a stop the idle will start bouncing from 1500-2000rpm. If you down shift and get the rpms below 1200 it'll idle normally.
New VDO idle valve and no vacuum leaks.
Any ideas?