At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 or 3.511 in Canada. Some gasolines contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT).
We recommend against the use of gasolines containing MMT. See Additives for additional information.
Chevrolet Cobalt Service & Repair Manual. Diagnosis & Testing
Accessing Diagnostic Trouble Codes
Connect a suitably programmed
scan tool to Diagnostic Link Connector (DLC) and follow manufacturer's instructions.
Wiring Diagrams
Refer to "Wiring Diagrams" on
main menu selection for diagram selections.
Diagnostic ...