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Fault codes

BR00T

New Member
Joined
Jun 11, 2019
Messages
22
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Age
40
Location
QLD
Members Ride
Holden commodore vy s2
After having my idle running rough I was driving along and the air bag fault light came splashing up on the dash. Enough was enough So i took it to the shop and had a diagnostic done on the car. These are the faults that came up...

21 - Drivers side airbag resistance too high

8 - communication with ABS control unit faulty

P0405 - EGR malfunction (could this be dirty and be the reason why i'm idling rough)?

P0113 - IAT sensor signal too large

Think the last 2 might explain the idling issues i have been having. Are the EGR and IAT going to cost me an arm and a leg to replace?
 
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