| STEP | CHECK TO BE PERFORMED | RESOLUTION IF THE CHECK IS NOT OK |
|---|
| 1 | Check 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/functions | If possible, renew the pipes. Otherwise replace the faulty components |
| 2 | Check that the air filter is not contaminated | Replace the filter element Op. 1048A14 AIR CLEANER FILTER ELEMENT - REPLACE. |
| 3 | Check that the air filter is correctly fitted | Refit correctly Op. 1048A14 AIR CLEANER FILTER ELEMENT - REPLACE. |
| 4 | Select 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 | |
| 5 | Carry out the following active diagnosis: EGR valve control, ensuring that it is successful | Check that the EGR valve is working properly by carrying out the See Test 1080CB EGR SOLENOID OPERATION CHECK |