The V8 Owners Forum -

ok where to start, my range rover v8 efi does not want to start, it turns over normally but doesnt fire, and smoke comes out of the air intake meter, when it does fire up and im driving it if i put the gas pedal down abit quick it cuts out or coughs and sputters, and when im using lpg asoon as i slow down it cuts out, is the problem the dizzy,i didnt know what area to put this, any advice welcome, rich

Is the firing order OK?
1-8-4-3-6-5-7-2, going clockwise around the cap.
Chris.

leads are on all the right ones, so far ive changed dizzy cap ,plug leads and plugs, this problem started alittle while ago ,driving doown the road and it suddenly started to run rough, fuel is getting through ok, and ive checked all the earth leads, plugs are sparking, but it still doesnt fire, rich

Had a backfire recently? if so it will have either blown a big hole in your manifold piping somewhere or blown the c**p out of your AFM. Otherwise it could be plugs/ plug leads (need a new set plugs every 3k and a set of good plugleads every 6k miles) when I had LPG or it started playing up if you didnt change things this often (I don't know what you mean by a little while ago).
Is it a real dissy cap or a pattern one? is it the right cap?
Otherwise it is in "limp home mode" on the pertol and the mixture is so rich it won't start in what passes for warm weather and its killed the plugs.
Mike

it started about 6 weeks back, ive changed plugs and leads and the dizzy cap is the same as the ones on it before, when you put the pedal down to quick it cuts out, rich

I would look and see if the ECU is in limp home mode, It fouls the plugs so quickly on petrol that the set you changed are probably trashed already. Mine went like this over about 4k miles, it is why I hate the stuff (LPG). From my exeriance I would check the ECU, MAF and all sensors are working properly on petrol with all the LPG stuff disconnected get it working really well on petrol. Then put the LPG kit back on and set up the ignition advance stuff and get it working on the LPG.

Oh just had a horid thought, I filled up once from a garage where the LPG was contaminated with water it got worse and worse eventually it ran like a complete hound on LPG and kept sticking the ECU in limp home mode.... getting it all flushed and cleaned cost £140 ish in filters and £250 in labour (and the loss of 150 litres of LPG, I had a twin tank set up) I hope that hasn't happened here.
Mike

well im going to try another ecu, if it works great means i dont have to wait for lifts to work, but it will be broken up in november for spares, will let you know how the ecu works out, rich

hello mate how u doing i had a rangy that done the same thing,, well i paid out as much it cost me to buy it then i got fed up with sold it on to my friend he rung me and asked me to swap the engine for him, the only thing we didnt change on the new engine was the dizzy it self we put the injection on her and she sounded bloody lovely i done all the things u done apart from the dizzy give it go mate i would,,,,

well ive tried another ecu and still the same, so im going to try another dizzy, so will let you know how it goes, if the dizzy doesnt do it then its time to be split, rich

ok, changed the ignition module on the side of the dizzy, and it started 1st turn of the key, runs ok on gas aswell, so as the saying goes, so far so good, and thanks for the help all rich

All you need now Rich is my super timing light to put the icing on the cake..

i like your timing light, dont think i would understand the gauge readings, but i still might get one, rich