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    Yet another 3.9 v8 with rough idle - advice please!

    ** Update ** Fit the ignition amplifier last night - kind of late as we had visitors. I felt a wee bit sheepish - I was clock watching the whole evening as I was itching to get out and work on the Disco. I did a quick volt check at the coil and the great news is that I had battery voltage...
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    Yet another 3.9 v8 with rough idle - advice please!

    Intermotor part is set to arrive today. I'll fit it tonight if the part is delivered. In looking at the fuse box satellite 1, I cannot believe this, but the engine management fuse has been removed. Was this done during the LPG conversion? I assume that the engine management fuse is for the ECU...
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    Yet another 3.9 v8 with rough idle - advice please!

    Thanks Mr Noisy! I have the Intermotor part number (15410) from the parts catalogue at SMP EU and will order this up. So I take it that you agree with my conclusion - that I need a new ignition amplifier? --Gregle
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    Yet another 3.9 v8 with rough idle - advice please!

    UPDATE: I stayed away from the loom because I was hot on the trail looking at the wiring to the coil. Tracing the wiring to +'ve on the coil -- I found an in line fuse with a 7.5 A fuse that was blown. I replaced the fuse and improved the dodgy splices and yes! Power was reaching the...
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    Yet another 3.9 v8 with rough idle - advice please!

    Excellent - thanks guys. I have my work list now that I'll start on here shortly. I will take some photos of the wiring because it has been seriously tampered with. I will trace the wiring around but I think it had to do with the cowboys that fit the LPG. From the looks of it, an ignition...
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    Yet another 3.9 v8 with rough idle - advice please!

    Thanks for that - any suggestions where best to get an ignition live feed from ? There are two +'s on the coil - which one should I tap onto? (15 or 1? or the nut in between?) My engine has an LPG conversion - but I want to sort out all the issues and so I'm running it on petrol only just now...
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    Yet another 3.9 v8 with rough idle - advice please!

    Hi there, A quick update in the continuing saga - I read the material that Noisy suggested - quite helpful. Also had a suggestion to go to www.ecumate.com and download the user manual and read the troubleshooting section. This was a really good read. Does anyone have one of the ECU mate...
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    Yet another 3.9 v8 with rough idle - advice please!

    Thanks so much Noisy! That was a great explanation and this has increased my confidence. I have a clear idea of what to do. It's colder than a well diggers a*** right now up here in Scotland, so I think it is time to get a cuppa and start reading the web page you refer to. And yes, I will read...
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    Yet another 3.9 v8 with rough idle - advice please!

    I have received a few suggestions of what to investigate - I reached out privately to a veteran V8 Land Rover owner and I thought I would post the suggestions so that others may benefit or comment on them: >> 1. the throttle potentiometer. It needs to be correctly set and check that it...
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    Yet another 3.9 v8 with rough idle - advice please!

    Hi there, I have a 1996 Disco 1 3.9 V8 automatic with LPG conversion. I purchased it in October 2012 and its my first Land Rover. I am an amateur DIY mechanic, with some ability. I depend on the Haynes Book of Lies as the forum refers to it. I have managed to fix a bunch of issues with the car...
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