2.6L Hose Diagrams

From Planetisuzoo Wiki

Diagram #1. Shows the standard or regular Trooper, 2.6L, 1988 - 1991 (non CA version).

Diagram #2. The hose layout for the CA Trooper, 2.6L, 1988 - 1991.

Diagram #3. The ASM valve item 162 located on the bottom of the air plenum... provides for fast idle when cold. Image and part nos from myisuzuparts.com. REGULATOR ASM; AIR 8-94314-411-1 1 08-1987 and LATER, 4EZ1 engine.

Pic #1. The placard from under the hood, 1990 Isuzu Trooper, 2.6L, 49 state model.

Pic #2. General layout of engine bay.

Pic #3. Shows PCV, Fuel Pressure Regulator, Charcoal Canister, and Thermo Valve.

Pic #4. Charcoal canister against firewall (right side of truck).

(1 == capped)

(2 == vent hose from fuel tank)

(3 == vacuum line for actuator)

(4 == purge line to plenum)

Pic #5. Fast idle and Air Switching Valves on fender (right side of truck).

Pic #6. EGR valve and Back Pressure Transducer (top rear of plenum).

Pic #7. Air pump and Air switching valve (front left side of engine).

Pic #8. Under side of intake manifold, showing Thermo sensors and Auxiliary Air Valve. (1 == some other temp sensor?) (2 == temp sensor for dash guage) (3 == temp sensor f0r ECU / ECM) (4 == auxiliary air valve -provides fast idle when cold)

Pic #9. Under side of intake manifold (top rear of plenum).

Pic #10. CA version has an additional vacuum control valve controlling BPT. (top rear of plenum).

Pic #11. Location of the TPS (throttle position sensor) A -is the adjustment screw. B - is the electrical connector.