Data sheet | |
---|---|
Manufacturer | Toyota |
Vehicle model | Aygo |
Year of manufacture | 2005 – 2012 |
Engine | 1.0i (1KR-FE) |
Fault codes | P0420 (catalytic converter efficiency) or P0300 or P0301/302/303 (combustion misfire, cylinders 1-3) |
Symptoms | Engine control lamp lights up | Misfiring | Engine starts poorly |
Important safety note
Oil carbon deposits on the spark plugs can lead to the following problems in the vehicles mentioned above:
Firstly, the fault memory of the engine control unit should be read out. If the fault codes P0420 (catalytic converter efficiency) or P0300 or P0301/302/303 (combustion misfire, cylinders 1-3) are stored here, this indicates oil carbon deposits on the spark plugs.
To eliminate the problem, check the catalytic converter and the lambda sensor. If no fault is found here, it is advisable to also check the compression when subsequently replacing the spark plugs. Also make sure that the correct engine oil has been used.
After completing the work, the fault memory must be deleted.
Reprinting, distribution, reproduction, exploitation in any form or disclosure of the contents of this document, even in part, is prohibited without our express, written approval; indication of the document source is also required. The schematic illustrations, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.
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