Audi a8 quattro codes. NEED HELP!
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AudiWorld Junior Member
Joined: Nov 2024
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From: Minneapolis MN 55407
Audi a8 quattro codes. NEED HELP!
So I just bought a 2002 Audi A8 quattro and when I bought it there were no lights on the dash. At some point the car went into limp mode I believe so I took it to auto zone to do an OBD2 read and the codes that came back were:
P0491-SECONDARY AIR INJECTION SYSTEM. (BANK1)
P0455-EVAPORATIVE EMISSION SYSTEM LEAK. DETECTED. (GROSS LEAK/NOFLOW)
P0492-SECONDARY AIR INJECTION SYSTEM. (BANK 2)
P0600-SERIAL COMMUNICATION LINK.
P1835-PRESSURE CONTROL VALVE 5 (N233): SHORT TO PLUS.
P1830-PRESSURE CONTROL VALVE FOR (N218): SHORT TO PLUS.
After reading up a little and realizing it was indeed stuck in limp mode and (I'm just assuming) that the throttle body needs to be cleaned and that's what triggered it to go into limp mode, I unplugged the battery and got it out of limp mode. So now it's out of limp mode and accelerates normal for the most part.(Haven't driven it but for only 2 mins) Just wondering from anyone who is experienced in this to help me diagnose what the problem could be as far as the codes that popped up when I took it to AutoZone. And if there anything I can try and or do myself what is it? I don't have the $ to take it in right now so this is im hoping going to be an all around DIY project for me. THANKS TO ALL WHO READ THIS AND ANYONE WHO CAN HELP.
P0491-SECONDARY AIR INJECTION SYSTEM. (BANK1)
P0455-EVAPORATIVE EMISSION SYSTEM LEAK. DETECTED. (GROSS LEAK/NOFLOW)
P0492-SECONDARY AIR INJECTION SYSTEM. (BANK 2)
P0600-SERIAL COMMUNICATION LINK.
P1835-PRESSURE CONTROL VALVE 5 (N233): SHORT TO PLUS.
P1830-PRESSURE CONTROL VALVE FOR (N218): SHORT TO PLUS.
After reading up a little and realizing it was indeed stuck in limp mode and (I'm just assuming) that the throttle body needs to be cleaned and that's what triggered it to go into limp mode, I unplugged the battery and got it out of limp mode. So now it's out of limp mode and accelerates normal for the most part.(Haven't driven it but for only 2 mins) Just wondering from anyone who is experienced in this to help me diagnose what the problem could be as far as the codes that popped up when I took it to AutoZone. And if there anything I can try and or do myself what is it? I don't have the $ to take it in right now so this is im hoping going to be an all around DIY project for me. THANKS TO ALL WHO READ THIS AND ANYONE WHO CAN HELP.
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