Discovery II
ENGINE MANAGEMENT SYSTEM - V8
18-2-92 REPAIRS
Valve - idle air control (IACV)
$% 19.22.54
Remove
1. Disconnect multiplug from IACV.
2. Loosen 2 clips securing air hoses and release
hoses.
3. Remove 2 screws securing IACV to inlet
manifold.
4. Collect clamps and remove IACV.
Refit
1. Position IACV to inlet manifold, locate clamps,
fit screws and tighten to 8 Nm (6 lbf.ft).
2. Position air hoses to IACV and secure clips.
3. Connect multiplug to IACV.
Injectors
$% 19.60.12
Remove
1. Remove upper manifold.
SYSTEMS - V8, REPAIRS, Gasket - inlet
manifold - upper - Without Secondary Air
Injection.
2. Carefully manoeuvre ignition coil assembly
from between inlet manifold and bulkhead.
3. Position absorbent cloth beneath fuel pipe to
catch spillage.
4. Disconnect fuel feed hose from fuel rail
CAUTION: Always fit plugs to open
connections to prevent contamination.
5. Release injector harness from fuel rail and
disconnect injector multiplugs.