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)
Or, hide this message:
temporarily or
permanently
Fuel Delivery Check
Test 1 - 2:
Test 3 - 6:
Test 7 - 9:
SYMPTOM CHECKING FUEL DELIVERY
POSSIBLE CAUSES -
Fuel pump relay -
Fuel pressure out of specs
-
Restricted
fuel supply line -
Fuel Pump inlet strainer plugged
-
Fuel pump module
-
Fuel delivery system operation
-
Fuel pump relay fused B+ circuit
-
(A141)
fuel pump relay output circuit open
-
(Z1)
fuel pump ground circuit open/high resistance
-
Fuel pump module