ERR6078 | Idle Speed Control Valve - EFi V8 | Discovery 2, Range Rover P38
To check the stock of Genuine Parts before placing an order please use our Contact Us page
To check the stock of Genuine Parts before placing an order please use our Contact Us page
To check the stock of Genuine Parts before placing an order please use our Contact Us page
To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: ERR6078 - Idle Speed Control Valve - Throttle Body - EFi V8
ERR6078 is an idle speed control valve for the throttle body on EFi V8 petrol engines, including 4.6 V8 installations. Fitted to the throttle body or mounted adjacent to it and operated by the engine management system, the valve regulates airflow that bypasses the throttle plate when closed so the ECU can maintain a stable idle across varying engine load, temperature and accessory demand. Routine maintenance or replacement is generally required if idle speed becomes erratic, the engine stalls at idle, or diagnostic trouble codes indicate an idle actuator fault; when replacing, confirm the valve matches the throttle body variant used on the vehicle.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Discovery 2 (1998-2004) - EFi V8 (including 4.6 V8)
- Range Rover P38 - EFi V8 (including 4.6 V8)
Frequently Asked Questions
ERR6078 modulates the amount of air that bypasses the throttle plate when the throttle is closed, allowing the engine management system to maintain a stable idle. It is driven by the ECU and adjusts airflow in response to engine load, temperature and accessory demand; common symptoms of a failing valve include erratic idle, stalling at idle and related diagnostic trouble codes.
| Model | Variant |
|---|---|
| Land Rover Discovery 2 (1998-2004) | Throttle Body (V8) - EFi V8 (including 4.6 V8) |
| Land Rover Range Rover P38 | EFi V8 (including 4.6 V8) |
If you are unsure of compatibility with your vehicle, you can also confirm by checking against your V.I.N. Simply reach out to us with your V.I.N and desired part number via our Contact page or use our Finding Part Numbers page.
Replacement is normally required if idle speed becomes erratic, the engine stalls at idle, or diagnostic trouble codes point to an idle actuator fault; inspect the valve during engine diagnostic checks or routine servicing and confirm the correct throttle-body variant before fitting a replacement.
- C8 products are usually supplied by Britpart.
- L8 products are genuine Land Rover parts.
- Z8 products are normally supplied by Allmakes.
All products and accessories available on LRDirect.com come with a 2-year warranty.