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Mass air flow sensor (MAF)
Temperature sensor
Tyre pressure sensor (TPMS)
Turbo control valve
Camshaft sensor
Crankshaft sensor
Exhaust gas temperature sensor
Exhaust pressure sensor
Boost pressure sensor
Oil pressure sensor
Sensor, xenon light (headlight range adjustment)
Air quality sensor
Pressure switch, brake hydraulics
Accelerator pedal position sensor
Intake air temperature sensor
Oil temperature sensor
Outside temperature sensor
AC compressor valve
Fuel temperature sensor
Pedal travel sensor
ESP sensor
Water sensor, fuel system
Cold start temperature switch
Brake discs
Shock absorber
Brake pads
Control arm
Engine oil
Clutch kit
Oil filter
Turbo
Wheel hub
Wheel bearing
Replace a Spare part Idle air control valve – a defective one or if the limit of use has been already reached. Find out useful information about Idle air control valve
Malfunctions of idle regulator:
part contamination
mechanical damage to the part
inner wiring breakage of the device
Signs fof idle regulator malfunctions:
engine speed spontaneously alternates
unstable engine work at idle
engine stalls while turning off transmission
idle rounds decrease when extra load appears (turning on head lamp, heater, radio)
increased speeds are not reached while launching with a cool engine
Causes of idle regulator malfunctions:
soiling of the mounting hole on inlet pipe assy
taper needle guides are worn out
coil shorted
control unit stopped sending voltage
Diagnostics
It is not difficult to do inspection of an idle regulator on your own. First of all, you should demount the device; for this you need to take away 4-pin connector with engine off and unscrew fixing bolts. After that connect the sockett again ask your assistant to turn the ignition on, and as a result adjuster must release the needle. If it does not happen, than part is not working.
Another diagnostics method requires a multimeter. After removing the idle regulator take data of voltage between contacts A-B and C-D connectors. Both values must be 50 to 80 ohm. Then measure B-C and A-D. If the part is correct, then the multimeter will show circuit breaking.
Repair and replacement of idle regulator
When the cause of regulator malfunction is contamination, the part must be demounted and cleaned from oil and dirt (use cotton swabs and, by no means, pour cleaners on the device). After breakage wires must be soldered, the soldered place must be degreased and covered with polish for corrosion avoiding.
Device replacement does not bring serious difficulties either. The main thing is to follow recommendations for working order:
Demount the regulator
Carefully clean out inducer of inlet pipe assy and place of the gasket location
Place a new part
Tightly fix mountings
Make sure, that distance between mounting fold and the regulator does not exceed 23 mm
Plug-in 4-pin connector
Turn ignition on for 10 seconds without turning on the engine for the new part calibration
