Possible causes
– Fuel line restricted
– Faulty fuel pressure regulator
– Faulty fuel pressure sensor
– Faulty fuel pressure regulator
– Faulty fuel pressure sensor
When is the code detected?
The Engine Control Module (ECM) has determined that the fuel rail pressure is too high for a specific engine RPM
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
AUDI Technical Service Bulletins for P0088 code
2007 AUDI A6 ENGINE AND ENGINE COOLING:ENGINE
2007 AUDI A8 ENGINE AND ENGINE COOLING:ENGINE
2007 AUDI Q7 ENGINE AND ENGINE COOLING:ENGINE
2007 AUDI S6 ENGINE AND ENGINE COOLING:ENGINE
2007 AUDI S8 ENGINE AND ENGINE COOLING:ENGINE
2008 AUDI A6 ENGINE AND ENGINE COOLING:ENGINE
2008 AUDI A8 ENGINE AND ENGINE COOLING:ENGINE
2008 AUDI Q7 ENGINE AND ENGINE COOLING:ENGINE
2008 AUDI S6 ENGINE AND ENGINE COOLING:ENGINE
2008 AUDI S8 ENGINE AND ENGINE COOLING:ENGINE