Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Checking the Fuel System

Tests 1 - 5:

Tests 6 - 9:

Tests 10 - 14:

Tests 15 - 19:

Tests 20 - 24:

Tests 25 - 28:

Tests 29 - 33:

Test 34:

SYMPTOM
CHECKING THE FUEL SYSTEM

POSSIBLE CAUSES
- Fuel pump ground circuit open
- Fuel pump relay fused B(+) circuit open
- Fuel pump relay output circuit open
- Fuel filter defective
- Fuel pump defective
- Fuel pump relay
- In-tank fuel pressure regulator defective
- Throttle position sensor defective
- Fuel filter defective
- Fuel inlet strainer defective
- Fuel pump module defective
- Fuel supply line defective
- Fuel tube restricted
- Powertrain control module defective
- Throttle cables defective
- Throttle position sensor defective