Knighty Posted April 6, 2006 Share Posted April 6, 2006 Ok have a Disco 2 that when max revs is hit the vehicle cuts out? This can be done any time ands is pretty repeatable. Its not good when towing a caravan on the back and as your overtaking it cuts out!! Any ideas where to start, Many thanks my dad will love it fixed!! Quote Link to comment Share on other sites More sharing options...
widget Posted April 6, 2006 Share Posted April 6, 2006 Ok have a Disco 2 that when max revs is hit the vehicle cuts out? This can be done any time ands is pretty repeatable. Its not good when towing a caravan on the back and as your overtaking it cuts out!! Any ideas where to start, Many thanks my dad will love it fixed!! Err, less gas? Sorry couldn't help myself!! Quote Link to comment Share on other sites More sharing options...
BogMonster Posted April 6, 2006 Share Posted April 6, 2006 Saw a Defender Td5 that did that once, it was a dud engine ECU, changed the ECU and it was fine. Might not be but if you can blag an ECU to fit as a trial it would be worth a try. You need a T4/Autologic type thingy to program it though. Quote Link to comment Share on other sites More sharing options...
toger Posted April 7, 2006 Share Posted April 7, 2006 When was the last time it was serviced and the ECU checked? Quote Link to comment Share on other sites More sharing options...
Knighty Posted April 10, 2006 Author Share Posted April 10, 2006 When was the last time it was serviced and the ECU checked? It gets service like clockwork my father is very pictular.. Check ECU for what flash updates / water ingress / ?? Quote Link to comment Share on other sites More sharing options...
toger Posted April 10, 2006 Share Posted April 10, 2006 Both. Quote Link to comment Share on other sites More sharing options...
Knighty Posted April 10, 2006 Author Share Posted April 10, 2006 Ok looks like I'm going to have to find a T4 unit with test book to bring home form somewhere! Quote Link to comment Share on other sites More sharing options...
DiscoDino Posted April 11, 2006 Share Posted April 11, 2006 had the same issue with my D90 TD5. Issue was a collapsing Snorkel fitment that restricted the amount of air going in and an oil contaminated wiring harness. Both were attended to and now I go to 4.5K RPM with no issues. I'm also chipped, intercooled (bigger), K&N and straight piped, but no issues there either... Quote Link to comment Share on other sites More sharing options...
Knighty Posted April 12, 2006 Author Share Posted April 12, 2006 Many thanks will have a look at his air pipes to ensure they have not gone soft / failing...... Always a possiblitly. Quote Link to comment Share on other sites More sharing options...
Knighty Posted April 15, 2006 Author Share Posted April 15, 2006 Many thanks will have a look at his air pipes to ensure they have not gone soft / failing...... Always a possiblitly. After looking at the harness it has oil ingress in it. It has been cleared out as best he can but issue still happens (harness to ECU). What should be done replace it?? Any idea of cost and where the oil comes from? Many thanks Quote Link to comment Share on other sites More sharing options...
BogMonster Posted April 15, 2006 Share Posted April 15, 2006 The oil migrates down the harness from the cylinder head but usually only causes misfires not cutting out completely. My advice would be to replace the harness inside the head (half an hour job, take off the rocker cover, unplug harness where it comes out of head, unplug 5 injectors & pull out harness, dump old harness, fit new one costing about £40 plug in injectors and replace rocker cover) Then before plugging it in to the main harness clean out the multiplugs on both the head and ECU end of the main harness, and the sockets on the ECU, using lots of electrical contact cleaner like LPS or something, blow it out with compressed air and refit. This usually does the job but as I said I don't know if the cutting out will be due to this anyway, I have only ever seen misfires (and whatever the tech bulletins say they all do it, even on new ones the injector harness should be regarded as a "service part" expect to replace every 60k miles or so) I also vaguely recall an "engine cutting out at high revs" problem I heard of once was something to do with the crankshaft sensor - worth checking anyway. Quote Link to comment Share on other sites More sharing options...
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