Vehicle & Technical > Range Rover

HELP...... loss of power on lpg at higher revs

<< < (2/4) > >>

Rich_P:
Electronic.  Hmm, doesn't that use some sort of sensor in the exhaust to determine the mixture and adjust accordingly?

GADGETP38:
dunno;Wouldnt have thought this one has. The exhaust is rudimentary to say the least...... straight through with a cherry bomb.
I know it is single point and I only say electronic as there are loads of wires going to all sorts of places, but I thought they were for the engine management system to make the injectors think they were still fueling etc.   I am pretty sure its a pretty basic system.

Rich_P:
Ooh, okay.  I understand what system you now have.  You have the basic single-point injection.

The electronic type I was asking about will automatically adjust the mixture to get the best out of the system.

Here's what I think may be the problem with your LPG kit.  The pressure provided by the system may be lacking a bit, causing the engine to run lean at higher rpms.  Or it may be the vaporiser that needs servicing/replacement (they only last a few years).

I would try increasing the gas supply pressure on the LPG system to see if that helps further up the rev range or not.

Skibum346:

--- Quote from: "nickW" ---my 3.5 disco does this a bit on both LPG and petrol is there a reason for it
--- End quote ---


Well, assuming that it's the origonal engine... it could be a worn camshaft. We have a 94 RRC with just over 200k on the clock and it's now gutless. I understand that the wear of the cam usually points at changing it at the 100K mark. I think we're overdue!

As yours is a 3.5, I suspect that you will also have high mileage and hence camshaft wear. Hate to be the bearer of bad news!

nickW:
mine on about 130k i dont normally bother to rev it over 3k as the power seems to go very flat

Navigation

[0] Message Index

[#] Next page

[*] Previous page