VW Golf 3, Vento, Polo - Engine not running true and with high speed | HELLA

VW Golf 3, Vento, Polo

Engine code: AEE, AEX

Model years: 1995-1999

Engine not running true and with high speed

Error code:

533 “Idle regulator system signal faulty”

If the above fault with this error code is detected for this vehicle type, it may be caused by the throttle unit being clogged by carbon deposits.

To clear this fault you should perform the following steps.

  1. Remove the throttle unit, clean it and reinstall it.
  2. Get the engine up to operating temperature and then use the mega macs menu item Basic Settings to adjust the throttle settings.

Please do this by following the disassembly and reassembly instructions from the vehicle manufacturer.

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