disco td5 missing when reving

its missing between 2500 rpm and 3500 rpm tried all the usuall culprates oil in loom none aps sensor and air box sensor. pluged it in and no codes air flow meter showing no raeding so changed that and still the same missing its chiped by twisted performance.. please help no splits in intercooler hoses niether samco ones fitted. please help

it seems no one can help me

water in fuel? Faulty temp sensor? injector going down?

no fuel ok jst done the fuel pipes as one broke. which temp sensor is that

temp sensor where and which one ????

ultra150 said:

temp sensor where and which one ????

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If the ECU detects a fault in either the fuel temp sensor (located on the fuel pressure regulator near the right hand rear of the cylinder block) or the coolant temp sensor (located at the front of the head in the top right) it will restrict power in the same way it would for an overheating engine. I have just replaced the coolant temp sensor on my TD5 defender due to this. My sensor would not read above normal wether the engine was overheating or not. Power is now fully restored. Also a faulty fuel cooler allowing fuel and water to mix can do the same. I have just done the headgasket on mine and due to the overheating I have blown my new fuel cooler that I fitted 2 months ago. They are £230 new. There is a guy on ebay selling the old style ones seconhand for £15. I am buying one of them for now.

did it post any codes when plugged in ?

ultra150 said:

did it post any codes when plugged in ?

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No. The first I knew was the hissing from under the bonnet when I turned it off.

ultra150 said:

it seems no one can help me

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Thats cos you shouted,no need - we can ignore any volume
Your truck is overboosting so the ecu shuts the fueling down to prevent damage.Probably because the wastegate is sticking.

waste gate free tried that one

Ok,but is it being operated,are the modulator pipes connected,does the modulator solenoid work and can you monitor boost pressure via Testbook etc?

What about the hoses for the intercooler and turbo delaminating? This is really common and causes issues with power delivery. If they are overly soft this could maybe indicate they need changing. This includes teh hoses before the turbo as well as after and either side of the intercooler.

I read a thread on a forum in the last day or so that sounded like your issue, and it mentioned hoses. If I can find it I'll post it here.

Cheers

Andy

waste gate free and working not monitred boost yet. hoses fine new ones samco also egr removed . put it on my mates snap on test book and the air flow sensor reading is zero from start up to reving dead tried a new one same problems but havent put it back on test book to see readings...