Engine running problems - camshaft gear signal error

ENGINE RUNNING PROBLEMS - CAMSHAFT GEAR SIGNAL ERROR

Model

Range Rover Discovery Series II

Affected vehicles

Vehicles with V8 engines and Bosch Motronic M5.2.1 EMS within the following VIN to engine number ranges: Range Rover - VIN XA 410482 to engine numbers - see below Discovery II - VIN XA 200412 to engine numbers - see below Discovery II - VIN XA 900000 to engine numbers - see below 55D00097A 58D00992A 56DO2190A 59D00188A 57D00119A 60D02459A

Date

1999-03-24

Reference

Bulletin 0014, CDS ref L8507bu

Bulletin text

Range Rover Discovery Series II

AFFECTED RANGE:

Vehicles with V8 engines and Bosch Motronic M5.2.1 EMS within the following VIN to engine number ranges: Range Rover - VIN XA 410482 to engine numbers - see below Discovery II - VIN XA 200412 to engine numbers - see below Discovery II - VIN XA 900000 to engine numbers - see below 55D00097A 58D00992A 56DO2190A 59D00188A 57D00119A 60D02459A

PROBLEM:

ENGINE RUNNING PROBLEMS - CAMSHAFT GEAR SIGNAL ERROR

Engine running symptoms such consumption or pinking may be reported. TestBook diagnostic check shows fault code ‘P 0340’ with a ‘Camshaft Sensor Fault’ description.

CAUSE:

Condition is caused by a camshaft gear signal switching error. with some early examples of camshaft drive gears which have retained unwanted residual magnetism. If the normally produced camshaft signal is interrupted, cylinder recognition does not occur, this has a consequential affect on ‘knock control’ and ‘ignition mapping’.

ACTION:

If vehicle produces the symptoms described above, is within the range shown in AFFECTED RANGE and fault code ‘P 0340’ is confirmed by TestBook, replace camshaft gear ERR7375. Refer to Workshop Manual repair number 12.65.12.01 for full information on replacement.

This ‘de-magnetized’ camshaft drive gear has been fitted from the engine numbers shown in AFFECTED RANGE . All parts stock is to the latest condition and the part number is unchanged from the original.

Bulletin N o : 0014 L8507bu 1 24.03.99

as reduced performance, increased fuel

The error occurs

NOTE 1: If a different TestBook fault code is displayed, no fault code is displayed, or the vehicle is outside the affected range, investigate further as appropriate. The condition is not likely to be due to the cause described in this bulletin.

NOTE 2: If an incorrect camshaft drive gear has inadvertently been fitted, i.e. of the type fitted to previous V8 engines with GEMS, the symptoms will be similar to those described in this bulletin.

PARTS INFORMATION:

ERR7375 Gear - Camshaft

NOTE:

The part number is unchanged from that of the original.

WARRANTY CLAIMS: Use Complaint Code: 1K3U

Use S.R.O.: 18.90.40/01 Engine management system - diagnosis Time allowance: 0.40Hrs All models

Use S.R.O.: 12.65.12 Camshaft drive gear replace Time allowance: 3.20Hrs Range Rover Time allowance: 3.10Hrs Discovery Series II