rrc v8 fuel

[Stacey]

hey all..... i have a snag starting the rangy.... ive changed the solenoid and relays by the ecu im going to change the fuel filter but if that dont work ........any ideas.

 thanks

[Skibum346]

I'd check the basics, are you getting a spark at the plugs...?

Skibum

[clbarclay]

It turns over I presume, but not firing?

If so are you getting any fuel vapour out of the exhaust whalst cranking?

[clbarclay]

Just seen your PM

I lose track of what I've done with my V8 of the last year (just when I got it fueling right it started burning oil) and what solutions cured which problems.

One item that could easily be giving trouble is the water temp sensor for the EFI ECU, not to be confused with the one for the temp guage on the dash. This is a common item to cause problems and is only a few quid to replace, however it is also hidden and can take a bit of time/effort to get at.

If your gettuing feul out of the exhaust then fuel starvation should not the problem (though I make no claims of being an expert)

[Stacey]

hey chris
 thank yuo for the advice mate im not sure what the snag is will try and isolate that and see what happen... thanks again

stacey

[Wolfie_]

I had a problem starting my last rangie. Changed everything you can think of. had a spark at the plugs but still wouldnt start. cured it with a new set of spark plugs . put them in and it fired first time!!!

[Stacey]

hey guys.

thank you for your help. i spent the weekend going thru the eleccy start side of the rangey even checking the multiplug on the ecu as per a document that i was advised to look at which basical checked everything and guess what ........it still doesnt want to play.
 Any body know of anybody that lives near Alton hampshire that does rangy electrics as the problem seems to make myself and a few friends sit back and scratch our heads....

I dont think that it will be ready for a weekend away now.

many thanks


stacey.

[Range Rover Blues]

If you lived closer I'd pitch in and help, sorry.

[Stacey]

hey mate. many thanks thats no problem, i will get it started thenim getting rid of it.

[zulublue]

Just double check the Dissie cap and HT leads and plugs, I know it sounds obvious, but it makes a load of difference, also if you have just replaced these make sure these are Land Rover originals, esp the Dissie cap.

[muddyman]

Have you put a new set of plugs in it?, had a non stater a few times over the years and plugs sorted it each time, or take them out and dry and clean them if they are wet with petrol.

[Range Rover Blues]

If they get wet with petrol then the EFi is doing something, try heating them under the grille (stinks).

If they come out dry then try pouring a teaspoon full of petrol intot he plenum just before you crank, see if it coughs at all.

Check the spark with a spare plug and one of the leads to the engine block or rocker cover.

[Stacey]

hey all, its got to the stage where it kicks and runs on the key only. im going to try and get another ecu and see what it does. Any ideas whould be good.

[Rossko]

I just spent a few hours sorting a Disco 3.9.  Had been getting tempermental, until finally a non-starter; cranked ok but not a splutter.

It had a spark, but looked a bit weak, so all the usual suspects tried - coil,amp,rotor, etc etc. Can't be the trigger pickup, meters ok and gives nice strong signal strength!!

Eventually found the trigger pickup gap was way too small, due to wear in the distributor baseplate.  My theory is that this was causing double triggering, on the lead-in and lead-out of the starwheel points.  Too quick triggering causes too-short coil pulses causes weak spark ....

Sorted that, nice fat spark, still not a cough of course!  Plugs completely choked with soft soot due to the misfires when the spark was weak. The moral there is that you can fix the original fault but still suffer from the consequences and not realise you have fixed it  :)

I also suspect the double triggering would cause the petrol system to dish out extra fuel pulses, compounding the whole issue.

cheers, Ross K