Contents Section: Fuel Injection Systems All sections

How to Remove and Install the Knock Sensor Opel Frontera A

Knock Sensor, Remove and Install

.D. ICON01.tif0,750,75tiff;; Remove, Disconnect

Ground cable from battery.

Crankcase ventilation hose (1) from cylinder head cover and from air intake hose.

Crankcase ventilation hose (2) from cylinder head cover.
.P. E6578.tif97,5tiff;;

Note: For clearer representation, illustration E 5279 shows the air intake hose removed.

.D. ICON01.tif0,750,75tiff;; Remove, Disconnect

Harness connector (1) from idle speed stepper motor.

Ground cable (2) from fastening pin.
.P. E5279.tif97,5tiff;;

Note: There are a total of 6 plug connections on the underside of the plug strip.

Illustration E 5392 shows the injector plug connections (positions 1 to 4).

.D. ICON01.tif0,750,75tiff;; Remove, Disconnect
Press retaining clip for injectors for 1st cylinder and 4th cylinder in plug strip towards engine side (with screwdriver) - collect retaining clips with bar magnet.
.P. E5392.tif97,5tiff;;
.D. ICON01.tif0,750,75tiff;; Remove, Disconnect
Lift plug strip (1).
.P. E5393.tif97,5tiff;;
.D. ICON01.tif0,750,75tiff;; Remove, Disconnect

Harness connector (1) for knock sensor from plug strip.

Note cable routing for knock sensor.

Starter - see operation 'Starter, Remove and Install'.
.P. E3710.tif97,5tiff;;

Note: For clearer representation, illustration E 3711 shows the knock sensor with the engine removed.

.D. ICON01.tif0,750,75tiff;; Remove, Disconnect
Knock sensor (1) from cylinder block.
.P. E3711.tif97,5tiff;;
.D. ICON11.tif0,750,75tiff;; Important!

The entire contact surface of the knock sensor must lie directly on the cylinder block - ensure utmost cleanliness.

Do not use washers, spring washers or toothed washers.

.D. ICON02.tif0,750,75tiff;; Install, Connect

Knock sensor (1) to cylinder block - maintain tightening torque precisely..

.D. ICON09.tif0,750,75tiff;; Tighten (Torque)
Knock sensor - 20 Nm / 15 lbf ft.
.P. E3711.tif97,5tiff;;
.D. ICON02.tif0,750,75tiff;; Install, Connect

Note cable routing for knock sensor - cable runs between 3rd and 4th cylinders in intake manifold.

Harness connector (1) to knock sensor (1) to plug strip.

Starter motor.
.P. E3710.tif97,5tiff;;
.D. ICON11.tif0,750,75tiff;; Important!

If the spring clips for the injectors are incorrectly positioned, this will prevent the plug strip engaging.

Align all spring clips correctly so that correct plug strip contact with the injectors is guaranteed.
.P. E6583.tif97,5tiff;;
.D. ICON02.tif0,750,75tiff;; Install, Connect

Plug strip (1) on injectors.

Ensure correct seating, plug strip must engage audibly.
.P. E5410.tif97,5tiff;;
.D. ICON02.tif0,750,75tiff;; Install, Connect

Note: For clearer representation, illustration E 5279 shows the air intake hose removed.

Ground cable (2) to fastening pin.

Harness connector (1) to idle speed stepper motor.
.P. E5279.tif97,5tiff;;
.D. ICON02.tif0,750,75tiff;; Install, Connect

Crankcase ventilation hose (1) to cylinder head cover and to air intake hose.

Crankcase ventilation hose (2) to cylinder head cover.

Ground cable to battery.
.P. E6578.tif97,5tiff;;