Workshop Manual

6E–103
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Engine Cranks But Will Not Run (Cont'd)
Step NoYesValue(s)Action
4 1. Ignition “OFF”, install a fuel pressure gauge at the
test fitting on the fuel supply line in the engine
compartment. (Use a shop cloth to absorb any fuel
leakage while making the connection.)
2. Ignition “ON”, observe the fuel pressure.
Is the fuel pressure within the specified values, and
does it hold steady?
285 - 375 kPa
(43 – 55 psi)
Go to Step 6 Go to Step 5
5 Is any fuel pressure indicated?
—
Go to Fuel
System
Electrical Test
Go to Fuel
System
Diagnosis
6 Install the switch box J 39021–2 at the injector test
connector and activate an injector.
Did the fuel pressure drop when the injector was
activated?
— Go to Step 7 Go to Step 18
7 Install an injector test light at the #2 cylinder injector
harness connector.
Does the light blink when the engine is cranked?
— Go to Step 8 Go to Step 24
8 1. Ignition “ OFF”.
2. Disconnect the 11-pin connector at the ION sensing
module.
3. With a test light to B + , probe each of the 6 exposed
ION sensing module pins, one at a time, while the
engine is cranked. (Use the gray narrow Metri - Pak
 flexible female connector from the J - 35616 kit to
make the pin accessible.)
Does the light flash at each pin when the engine is
cranked?
— Go to Step 12 Go to Step 9
9 1. Remove the 4-pin connector at the ION sensing
module.
2. Ignition “ ON”.
3. Use a test light at the harness connector to verify
that the module is being supplied with B + and
ground.
Was a problem found?
— Go to Step 10 Go to Step 11
10 Repair the open ignition feed circuit or ground circuit to
the ION sensing module.
Is the action complete?
— Verify repair —
11 Repair the ION sensing module.
Is the action complete?
— Verify repair —
12 1. Reconnect the ION sensing module 11-pin
connector.
2. Remove the electrical connector from each coil.
3. With a test light to B+, probe each of the coil
connectors at the wire which runs to the ION
sensing module.
Does the light flash at each coil connector when the
engine is cranked?
— Go to Step 14 Go to Step 13
13 Check for an open circuit between the coil and ION
sensing module.
Is the action complete?
— Verify repair —