S15/T15 Sonoma P/U 2WD V6-262 4.3L VIN W CPI (1994)
Fuel Pressure Test Port: Service and Repair
Fuel Pressure Connection
CLEAN
Area around fuel pressure connection with GM X-30A or equivalent.
REMOVE OR DISCONNECT
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Negative battery terminal.
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Relieve fuel system pressure.
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Fuel pressure connection and seal. Discard seal.
INSTALL OR CONNECT
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New seal on fuel pressure connection.
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Fuel pressure connection in fuel rail. Tighten Fuel pressure connection assembly to 10.0 N-m (88 lb. in.).
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Tighten fuel filler cap.
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Negative battery terminal.
INSPECT
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Turn ignition switch to the "ON" position for two seconds, then turn to the "OFF" position for ten seconds. Again turn to the "ON" position, and
check for fuel leaks.
NOTE
Any time the battery is disconnected, the programmed position of the IAC valve pintle is lost, and replaced with a default value. To return the IAC
valve pintle to the correct position, perform the following procedure:
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Disconnect negative battery for at least ten seconds to clear control module memory. (Ensure ignition is "OFF".)
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Reconnect negative battery cable.
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"START" engine and allow engine to reach operating temperature. Check for proper idle operation.