View Single Post
  #8  
Old 7th April 2019, 12:31 PM
steamship's Avatar
steamship steamship is offline
Senior Member
 
Join Date: Jun 2013
Location: Londonderry, Northern Ireland
Posts: 2,931
Default

Quote:
Originally Posted by DailyMike View Post
Thanks, MikkiJayne!

I'll see if A8parts have one in stock first thing Monday! I need to order 04-off Lambda sensors from them too...I always get error codes relating to them. I mainly run the car on LPG..will the Lambda sensors being faulty effect the economy when running on LPG as well as on petrol?

Kind regards,

Mike.
Running the car on LPG shouldn't have any effect on the lambda sensors. As ainars says, replace them with new ones, as the pre-cat one's are a pain to get at (and you don't want to put a second hand one in only for it to fail soon afterwards). Admittedly, I did mine on a 3.7, so assuming the 4.2 layout is very similar.

BTW The only issue I ever had with running on LPG was about six months after I got the job done, as it kept reverting back to petrol. Was told at the time it was a faulty coil pack, but having experienced another faulty coil pack recently, I'm doubting that explanation now.
__________________
2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts

My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts

Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights

My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds
Reply With Quote