Injection -yuk!- problem

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topcatcustom
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Injection -yuk!- problem

Post by topcatcustom »

A friend has just got a 3.5 RR, I think its about an H plate so not sure if flapper or hotwire? Anyway he says its running lumpy, revs up and down when it's hot and cold, and sometimes stalls when put into drive.

Any ideas?


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crayefish
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Re: Injection -yuk!- problem

Post by crayefish »

topcatproduction wrote:A friend has just got a 3.5 RR, I think its about an H plate so not sure if flapper or hotwire? Anyway he says its running lumpy, revs up and down when it's hot and cold, and sometimes stalls when put into drive.

Any ideas?
fit carbs! :lol: :lol: :lol:
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Ian Anderson
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Post by Ian Anderson »

is it runnig really rich?

If so probably in limp home mode

Disconnect battery for 30 secs

Reconnect

This resets the ECU and clears the fault code

If it persists then it's time to get a fault code reaer and find what's going iffy

I agree
Carbs are easier

Ian
Owner of an "On the Road" GT40 Replica by DAX powered by 3.9Hotwre Efi, worked over by DJ Motors. EFi Working but still does some kangaroo at low revs (Damn the speed limits) In to paint shop 18/03/08.
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topcatcustom
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Post by topcatcustom »

I think apart from lumpy idling* (sorry key word was missing before) it runs and drives ok...
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Wotland
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Post by Wotland »

Normally all RR efi 3.5 are flapper, there is only the discovery who had 3.5 efi Hotwire.

Hummm lumpy idling.... may be overrun valve ?
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ChrisJC
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Post by ChrisJC »

There is an idle mixture screw on the air-flow meter. Does adjusting that make any difference?

You really need the Land Rover diagnostics manual, which you can get from here:

Small one to start with:
http://www.cowdery.org.uk/downloads/V8EFiSystem.pdf

And then scanned version of manual (132Mbyte!)
http://www.cowdery.org.uk/downloads/Fla ... ual.tar.gz

In my humble opinion, taking the time to download and then go through the latter download _will_ fix the problem far more reliably than making random guesses......

Chris.
--
Series IIA 4.6 V8
R/R P38 4.6 V8
R/R L405 4.4 SDV8
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topcatcustom
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Post by topcatcustom »

Will try the screw on the AFM, it only runs poor on idle, not driven it myself yet but he says it goes like S_I_ off a SH_V_L :wink: when driving it from 800/1000 upwards
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