benj7891

benj7891

New Member
Hi Everyone

Although i have read many of the threads on here before this is my first time posting.

Just had the headgaskets re-paired after my 2001 P38 4.0li range rover over heated while heading up the M6, fortunately i new not to keep driving, anyway now thats fixed and i've got the rangie back there are a few little niggly problems which i would very much apreciate any kind of help with.

1st - The car was running on LPG but since i've got it bk the LPG is not working.
2nd - There is a gearbox fault message coming up on the display which then disapears rather quick when i first turn the engine on.
3rd - The fuel reading on the trip computer i.e. miles left to go in the tank is stuck on <50
4th - when the car is first turned on the engine rev's slightly more than what it used to untill you start driving then its absoultely fine.
Finally 5th - Most trivial one really the Sports mode dosnt seem to engange at all..

At a guess i was thinking it may just need a reset of the cars electronics with the battery being disconected for a fair amount of time, but like i said that was just my first guess.

Car is running superbly apart from these 5 things and as for the gearbox there is no strange knocking or any strange sounds at all so thought this may have just been due to taking the engine apart hence why my first thought is to just get the codes cleared.

Thanks for any help at all much apprciated.

Ben
 
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Take it back to where you had the work done. If everything worked before it should still work now. It is down to them to sort out.
 
Hi Wammers

Yea thats what im planning on doing i just wanted to know abit more info as to weather these were common problems when having head gaskets changed or having the battery disconected for a long period of time and wheather it was soming as simple as getting the car reset, so then i can aleast mention this to him otherwise im kinda going off soley what he says when i take it back.

Thanks for the reply though much apreciated.

Ben
 
Number 2 of those faults are typical of a dodgy battery, the others could be as a result of either a jump start incorrectly done, or the garage using one of those brutal battery boosters.
 
Hi mate
All of the above I had my battery off for a long time (EAS prob) and I have not had these problems I would take it back to the place you had it repaired looks like they have used a boster starter.
Sorry
 
Thanks alot for the input guys I've sent it bk into the garage and there gona get to work sorting it out fingers crossed it'll be a quick fix if there is such a thing with range rovers haha.
 
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Totally off topic Benj, but nice colour ! mine was the same. Only ever see one other in my 5 years of ownership.
 
multipoint lpg is normally wired via the sport mode switch to stop you using it in lpg mode,so if your lpg aint working your sport mode wont either & vice versa
 
Ah right cheers Will that makes sense that only leaves 3 to sort out now as the digital fuel gauge was me being an idiot and not reseting it but sorted that now so it's lookin like it's somthing to do with this rev'ing issue as I'd imagine the amount of rev's would have an effect on both the LPG and the gearbox.

Cheers Rewmer yea I really liked the colour as I had'nt seen it before and still hav'nt seen another one since I've had it.
 
Is there a chance the over revving thing could be to do with an air leak to the inlet manifold from the LPG system?

If it's a multipoint LPG system then there will be a lot of pipes that would all have to be disconnected to mend the head gaskets. If these haven't been put on right, or are not airtight, then the amount of air entering the engine will not be what the management is expecting and might be over fuelling to compensate?

My LPG system works in both Sport and Normal Modes. I've never heard of them being wired up to not work in Sport mode. The only reason to isolate the LPG in Sport mode that I can think of is if you've fitted an LPG system that isn'y big enough to fuel the engine properly...?
 
rewmer said:
What a load of tosh.
Click to expand...
well on the last 3 ive had pro converted some years ago this is how it was done & not by the same garage either,so suppose there all tosh aswell considering 1 of them are the main and well respected lpg installers in the midlands
 
wil2813 said:
well on the last 3 ive had pro converted some years ago this is how it was done & not by the same garage either,so suppose there all tosh aswell considering 1 of them are the main and well respected lpg installers in the midlands
Click to expand...
to be fair 2 of them was singlepoint impco systems and was probably wired this way to avoid blowback on high revs so im afraid i withdraw my defence :(lol
 
wil2813 said:
to be fair 2 of them was singlepoint impco systems and was probably wired this way to avoid blowback on high revs so im afraid i withdraw my defence :(lol
Click to expand...

Woah woah woah, no way getting off that easy !

I refuse to believe ANY sytem would be hard wired into the gearbox ECU so it switches to petrol in Sport mode. What you have probably experienced is poorly set up / installed / maintained or badly matched components that switch back to petrol because the gas system cant keep up at high revs. True some systems add a dash of petrol at high loads aswell as the LPG, but a proper LPG system will only switch to petrol if you ask it to or its run out of gas.
 
rewmer said:
Woah woah woah, no way getting off that easy !

I refuse to believe ANY sytem would be hard wired into the gearbox ECU so it switches to petrol in Sport mode. What you have probably experienced is poorly set up / installed / maintained or badly matched components that switch back to petrol because the gas system cant keep up at high revs. True some systems add a dash of petrol at high loads aswell as the LPG, but a proper LPG system will only switch to petrol if you ask it to or its run out of gas.
Click to expand...
they both where hard wired to the gear selector sport mode switch ? it didnt switch back to petrol at all it simply wouldnt let you select sport mode on lpg,im just stating this to help with this thread incase the guys set up is simaler to what ive experienced,the systems i had installed then was impco with the big variable ventura mixer, think it was a 225.so hopefully im out of it now woah :p lol
 
Alright guys cars going back to the garage first thing Monday, but i've been poking around under the bonnet and found one of the plugs connecting to one of the lpg injectors was not plugged in so plugged this back up and bingo the LPG is now working so its just the gearbox fault the rev'ing and the sports mode, and im guessing due to this my lpg is not wired to the sports mode at all cheers for the suggestions though guys will let you know what happens at the garage when they get back to me, and just to clarify incase you were wondering it is a multi point injection system.

Ben
 
Alright guys,

Just heard from the garage today and after stripping the manifold down to look for any disconections they found a small air leak (not sure where abouts i assume they just found it as they where working) which has now been repaired and they have had it running with no rev'ing so it seems to be working fine so going down tonight to pick it up and hopefully fingers crossed its all sorted, its taken long enough be nice to have the old blue back on the road.

Cheers for all your help again guys.

Ben
 
benj7891 said:
Alright guys,

Just heard from the garage today and after stripping the manifold down to look for any disconections they found a small air leak (not sure where abouts i assume they just found it as they where working) which has now been repaired and they have had it running with no rev'ing so it seems to be working fine so going down tonight to pick it up and hopefully fingers crossed its all sorted, its taken long enough be nice to have the old blue back on the road.

Cheers for all your help again guys.

Ben
Click to expand...

They won't be charging you for that then i take it. As it was their tardy work that caused it.
 
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