Suzuki Engine 2002 GRAND VITARA SQ625, Service Manual

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6-1-98 ENGINE GENERAL INFORMATION AND DIAGNOSIS (H25 ENGINE)
6 Check fuel injector circuit referring to “Table B-
3” in this section.
Is it in good condition? Go to Step 7. Repair or replace.
7 Check fuel level sensor referring to Step 3 of
“DTC P0460 Diag. Flow Table” in this section.
Is check result satisfactory? Go to Step 8. Faulty fuel level sensor or
its circuit.
8 Check MAF sensor referring to “MAF Sensor” in
Section 6E2.
Is check result satisfactory? Go to Step 9. Faulty MAF sensor or its
circuit.
9 Check ECT sensor referring to “ECT Sensor” in
Section 6E2.
Is check result satisfactory? Go to Step 10. Faulty ECT sensor.
10 Check HO2S referring to Step 2 of DTC P0154
(DTC No.26) Diag. Flow Table.
Is check result satisfactory? Substitute a known-good
ECM (PCM) and recheck. Faulty HO2S.
Step Action Yes No