Co settings - low comp derivatives

CO SETTINGS - LOW COMP DERIVATIVES

Model

New Range Rover V8 Petrol derivatives

Affected vehicles

All

Date

1995-09-06

Reference

06/09/95

Bulletin text

SUBJECT CO Settings - (Australia/Gulf and Rest of World Low Compression Derivatives

MODEL

New Range Rover V8 Petrol derivatives

DETAIL

During the service life of the vehicle it may be necessary to reset CO levels, should this be the case the procedure below MUST be followed to acheive the correct settings.

ACTION REQUIRED

Adjust the CO levels accordingly, using TestBook and the latest CD.

PARTS INFORMATION

Not applicable

PROCEDURE

IN SERVICE SETTING PROCEDURE FOR CO For in service CO setting, please follow the procedure detailed below. Ensure vehicle is at normal operating temperature before under taking this procedure (must be driven 2 to 3 miles).

1. Ensure that the vehicle is to specification in other respects prior to starting to set CO . in particular check for Intake air leaks Exhaust leaks Stored faults in the E.C.U 2. Warm up and calibrate the CO analyser. 3. Connect gas analyser sample pipe into the exhaust tail pipe. 4. Idle the engine until fully warm with the thermostat open. 5. Idle the engine with no electrical load, air conditioning off, in neutral or park, with air suspension in kneel and disabled.

06/09/95

NRR/17/05/95/EN

AFFECTED VEHICLES

LP All LH LJ LD

WARRANTY

Normal warranty policy and procedure apply

COMP. CODE

Not applicable

SRO

19.22.13 Re-set CO 00.70 hour

SUBJECT CO Setting - (Australia/Gulf and Rest of World Low Compression Derivatives

MODEL

New Range Rover V8 Petrol derivatives

6. Disable the purge system, achieve this by removing the purge pipe between the purge canister and the solenoid valve at the canister end ( quick release connector ), Leave the pipe open to atmosphere. 7. Connect TestBook diagnostic plug to the vehicle and follow the instructions to prepare for open loop tune setting, using CD part number DRF 0003 8. Testbook CO procedure select the following sections. a. Diagnostic Systems b. 95MY Range Rover c. Enter Vin number d. Range Rover Menu e. Gemms f. Sub System Tests g. Open Loop Tuning h. The screen will display the engine water temperature, set CO when between 85-92 degrees C

9. Raise the engine to 2000 rpm for 30 seconds, return to idle for 30 seconds, and set during the following 5 minutes, if setting has not been achieved in this time, then repeat this procedure. Set the CO (amfr) by Rich Lean buttons. 10. Set the CO to 1.5% +/- 0.5% 11. Set stepper position to Less than 160 Km =30 steps between 160 and 1600 Km =25 steps greater than 1600 Km =20 steps

12. Re-check CO setting, re-set if not 1.5% +/-0.5% 13. Switch off engine, disconnect TestBook diagnostic plug, allow engine to cool. 14. Reconnect purge pipe, and enable air suspension.

06/09/95 NRR/17/05/95/EN

AFFECTED VEHICLES

LP All LH LJ LD