Havent used the EK1, D16Y4 for a while and the battery was dead.
Fitted a new one and all was good except the idle.
She idles normal for about 3 seconds, speeds up for about 3 seconds then back to normal for 3 seconds, speeds up etc etc etc
No misfire and no power loss everything is fine except idle.
Have run it for a couple of days now incase it was the computer relearning but dont think so.
Any idea where to start with this?
its more of a blockage/Dirtnes issue by the sound of it . nothing to worry about.
Dropped it into the dealer today, charged me a pittance as they only belted the stepper motor with a hammer a few times and cleared the muck out.
If it happens again will need a new stepper motor and radiator flush at a cost of $700, that wont happen tho will learn how to do it myself