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Mike Noc · 20th February 2016, 09:04

I reckon it would depend on how it was failing. T4 measures the LP fuel pressure from the sensor on the fuel filter, so if the ITP wasn't pumping as it should then that would show up.

If however the pump failed like the earlier designs do due to the commutator segments wearing out then no - it will work fine up until the time it doesn't start.

Probably a bit more to it than that though - I'm sure a T4 expert can give you a more in depth answer. Sadly I don't own a T4, just a Sykes Pickavant ACR4. Good enough for what I need it to do, but a T4 it ain't.

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20th February 2016, 09:04	#2
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,550 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	I reckon it would depend on how it was failing. T4 measures the LP fuel pressure from the sensor on the fuel filter, so if the ITP wasn't pumping as it should then that would show up. If however the pump failed like the earlier designs do due to the commutator segments wearing out then no - it will work fine up until the time it doesn't start. Probably a bit more to it than that though - I'm sure a T4 expert can give you a more in depth answer. Sadly I don't own a T4, just a Sykes Pickavant ACR4. Good enough for what I need it to do, but a T4 it ain't. . Last edited by Mike Noc; 20th February 2016 at 09:10..