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Old 17th April 2018, 11:12 AM
ulfilias ulfilias is offline
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Join Date: Apr 2009
Location: Peterborough, Cambs, UK
Posts: 961
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The after market oddly don't seem to do anything for the D3 4.2 petrol that i've found. I know they are far less reliable anyway.

There's an argument of getting a decent cat for elsewhere and welding it into place!

However i'm currently looking at getting the LPG working properly as that's something more useful in the long term and something I should have done a while back. I've just tried swapping the MAF (bosch) and will give the LPG software another play.

Initially getting Cylinder 8 missfires though!

There's a thread here (different car)
https://www.pistonheads.com/gassing/...&f=23&t=866609

Which mentions different gappings for gas which may be something to look at

And another which also mentions about the HT spark leads may be an issue with arcing due to the higher specs
https://www.pistonheads.com/gassing/...&f=69&t=906093

Which also may be something to look at
__________________
Current :
2005 A8 Sport 4.2 V8 D3 - LPG working!

Previous :
1998 S8 PF 4.2 V8 D2 - Gearbox died ~120k
2002 S8 FL 4.2 40v V8 D2 Prins LPG - Engine valves met pistons ~230K

Also :
1996 Jeep Grand Cherokee 4.0l (Post Apocalyptic makeover)
2003 Brabus Smart FourTwo (should sell)
2003 Mazda Rx8 2.3 (might sell)
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