199000526 - 1048OA AIR INTAKE/VACUUM CIRCUIT CHECK

STEPCHECK TO BE PERFORMEDRESOLUTION IF THE CHECK IS NOT OK
1Check the vacuum supply system components/functions: in particular, check for leaks or blockages.Check the seal of the secondary air inlet/turborcharging system hoses. Also check for any obstructions or porosity.Check that the pipe restriction bands in the air intake/inlet system are correctly fitted.Check the hoses and connected pipes to identify any obstructions, damage etc.Check that the debimeter is not contaminated.Check the exhaust gas turbocharger and exhaust system components/functionsIf possible, renew the pipes. Otherwise replace the faulty components
2Check that the air filter is not contaminatedReplace the filter element    Op. 1048A14 AIR CLEANER FILTER ELEMENT - REPLACE.
3Check that the air filter is correctly fittedRefit correctly    Op. 1048A14 AIR CLEANER FILTER ELEMENT - REPLACE.
4Select the following control unit at the diagnostic equipment: Marelli 6F3 Diesel Injection EOBD CAN (EP engine 1.3 JTD)Check the value of the following parameters:- Measured air mass    See Test 1060GG CHECK MEASURED AIR MASS- Measured turbo pressure    See Test 1060GF SUPERCHARGING PRESSURE CHECK
5Carry out the following active diagnosis: EGR valve control, ensuring that it is successfulCheck that the EGR valve is working properly by carrying out the    See Test 1080CB EGR SOLENOID OPERATION CHECK