Switch off the ignition and remove the air duct. Unlock and disconnect the loop (1, fig. 5.176) from the throttle body. Loosen screws and remove housing (2) throttle valve.
Check the O-rings on the throttle body and air manifold for correct alignment with the air duct and air manifold and for damage, replace if necessary.
Note. To facilitate installation, lubricate the O-ring with a lubricating rubber such as petroleum jelly.
Read the information from the fault memory and record it. Troubleshoot and erase information from the fault memory.