Bloody V8.... again

[fesuvious]

I dont believe this damn car.

Had loads of issues running way way rich.
Replaced coil and air flow meter, also plugs. New dizzy and leads less than 12 months ago.
Set her up on a CO2 meter and all was great - ran beautiful, if a little lumpy first thing and then when she got a little heat in her she was lovely.

Come to it last nite and all I got was a cough cough splutter and died.
Took plugs out cleaned them up this morning and the same again. She fires then splutters and dies. The plugs are soaked with petrol and theres a strong smell. Iv left the plugs out for some of the fuel to evaporate but what on earth could be causing this ??? Someone. please. help me !!!

[beattiedh]

Hi

I have the same thing at the moment. All I did was switch the dizzy cap and have the same thing. Spoke to Safari engineering and they told me to remove the lead that comes from the coil into the Airflow meter. There is some kind of pump relay there. Then plugs out, turn it over and blow out the excess fuel etc.

Mine is a 3.5 EFi

hope this helps, will try mine on Saturday.

Dunc

[fesuvious]

il try that right now

[fesuvious]

UPDATE : 13:21

Had left plugs out and put plugs in front of heater while I went to visit a customer.

Bores had visibly dried out and I put plugs back in and she fired up.

BUT, CO reading way high again for no obvious reason. Have adjusted it once more.

Does anyone know though : What would cause a V8 to dump a shed load of fuel into the cylinders at start up from cold ? Or could this be a one off freakish event ?

[muddyweb]

Faulty cold-start injector ?
Faulty temperature sensor ?

[fesuvious]

dont suppose you'd know roughly what these cost ???

[Range Rover Blues]

Is that a 3.5 flapper system, I've the remains of a dead one about here somewhere if the cost of new bits looks like a 'phone number, just bung me a few quid.

[fesuvious]

Its the hot wire system. But this is brand new.........

Sididuous (member here) suggested maybe its the dizzy ?

Im thinkin bout muddywebs suggestion though..........

Drove home tonight its ok when warm although every now and again when the revs drop (out of gear) there are some monster violent backfires?

[Range Rover Blues]

If it's hot-wire you don't have a cold-start injector, and backfiring suggests a lean mixture, not rich. Anyhow, the Haynes manual has a sort of mulitmeter-diagnostic for the hot-wire (at least in the RRC manual, I mean suppliment) so you should check the basics of the sensors before putting your hand in your pocket.

[fesuvious]

a haynes it is then.
Lean mixture would suggest backfire ?

Only thing is - My gastester gives a reading of @2.5, which surely suggests ever so slighhtly rich ?????

IM CONFUSED.

[Range Rover Blues]

It's certainly a lean mixture that causes backfiring on LPG, I think it's harder to ignite or something.

Does you car have catalists?

[fesuvious]

iTS A 1990 'H' PLATE.
No cats.
3.5 injection.
Hotwire meter.
its NOT on lpg

Its a bit of a mongrel though.................

[Xtremeteam]

got a sugestion,not a nice 1 though,what about if u cant get it working just fit a twin su set up?

[fesuvious]

update : TWAS DIZZY !

after curfuffle with air flo and repeated checkin of leads and cap; dizzy had worked loose......

Timing was circa 4 degrees out