Toyota Celica 2005 Repair Manual page 359

DI−160
20 Perform confirmation driving pattern.
HINT:
Clear all DTCs prior to performing the confirmation driving pattern (Refer to step 14).
Go
21 Is there DTC P0171 or P0172 being output again?
A
22 Confirm if vehicle has run out of fuel in past.
YES
DTC P0171 or P0172 is caused by running out of fuel.
2005 CELICA (RM1131U)
DIAGNOSTICS − ENGINE (1ZZ−FE)
B Replace ECM (See page SF−78) and perform
confirmation driving pattern (Refer to step 14).
NO Check for intermittent problems (See page
DI−3).
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