Troubleshooting assistant

Pick a problem area, choose the symptom, then follow the remedy links or step-by-step TSRM procedure.

Diagnostic codes

Areas /Poor fuel economy

Engine Mechanical

Poor fuel economy

Higher than expected fuel consumption.

Possible causes and remedies

Possible cause

Fuel leak

Remedy

Repair as necessary

Possible cause

Air cleaner clogged

Remedy

Check air cleaner

MA-5

Possible cause

Incorrect ignition timing

Remedy

Reset timing

IG-20

Possible cause

EFI system problems
• Injector faulty
• Deceleration fuel cut system faulty

Remedy

Repair as necessary

Possible cause

Idle speed too high

Remedy

Check ISC system

FI-106

Possible cause

Spark plugs faulty

Remedy

Inspect plugs

IG-7

Possible cause

EGR system always on

Remedy

Check EGR system

EC-12 / EC-16

Possible cause

Low compression

Remedy

Check compression

EM-20 / EM-21

Possible cause

Tires improperly inflated

Remedy

Inflate tires to proper pressure

Possible cause

Clutch slips

Remedy

Troubleshoot clutch

Clutch

Possible cause

Brakes drag

Remedy

Troubleshoot brakes

Brakes

Troubleshooting assistant

Poor fuel economy

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