Liqui Moly Pro-Line Throttle Valve Cleaner

Liqui Moly Pro-Line Throttle Valve Cleaner removes contamination and deposits from petrol engine intake and throttle valve areas, including nozzles and passages. Its active solvent formula loosens oil, resin and adhesive residues, helping keep moving parts operating freely and supporting reliable engine operation.

Suitable for cleaning throttle valves and accessible intake areas in petrol engines only.

Application

Establish direct access to the throttle valve, then start the engine. Using the spray probe, apply across the throttle valve area in bursts of 2–3 seconds while maintaining an engine speed of at least 2,000 rpm.

If the engine cannot start or maintain speed with the intake pipe removed, switch off the ignition before disconnecting the air flow meter plug. After cleaning, clear the resulting stored fault using suitable diagnostic equipment and carry out the air flow meter relearning procedure if required.

If the engine speed fluctuates by more than 1,000 rpm during application, shorten the spray bursts. Do not allow the cleaner to contact the air flow meter or painted components.

For stubborn deposits on the throttle valve, in the intake manifold or on the intake valves, treatment can be repeated with a second can. After application, run the engine for approximately 20 seconds at a minimum of 2,000 rpm to burn off remaining cleaner residues in the intake system.

For petrol engines only.