I have a 1998 Nissan Maxima GLE, I Failed the Emission Inspection (DTC) Diagnostic Trouble Codes of "P1492","P1105" What these Codes exactly? mean
List of DTC Diagnostic Trouble Codes found on my 1998 Nissan Maxima GLE during OBD test:
KOER Result : Fail
MIL Command Status : Fail
Test Information : DTC Diagnostic Trouble Codes:
P0300 Random/Multiple cylinder Misfire Detected
P1492 Manufacturer Specific Code
P1105 Manufacturer Specific Code
WOULD YOU PLEASE GIVE ME THE EXACT READING OF THESE TROUBLE CODES?
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cORRECT. tHIS CODE DOES DEALs With emmissions. P1400 deals with the EGR valve. In case u are not aware, EGR stands for Exhaust Gas Re-circulation. What really this valve does is that it re-cycles some of the exhaust gases into the cylinder for combustion. The EGR valve might be blocked or has malfunctioned. It is advised that this valve changed or consult with a mechanic who is knowledgeable about this technology. a malfunctioned/dis-abled EGR system will cause the car to fail an emissions test, and may cause the EGR passages in the cylinder head and intake manifold to become blocked with carbon deposits, necessitating extensive engine disassembly for cleaning. So it is advised that u repair this ASAP