Thread: Before I start on the injectors.....

check fuel pressure

Originally Posted by discorevy

check fuel pressure

What fuel pressure testing gear works with the TD5? Stuff from ebay?
Where do you connect it?

Originally Posted by Bohica

What fuel pressure testing gear works with the TD5? Stuff from ebay?
Where do you connect it?

Originally Posted by AK83

LR Toolbox shows you how too do this type of test.

First half of the vid shows you to do earth tests, then how to understand an oscilloscope output on how worn the pump may be.

FPR, you need a pressure gauge. Vid above shows the complications involved(for the average person).

ie. click the Youtube link I posted.

Never done it personally, but I would have thought a simpler setup to LR Toolbox's method would have been to tap into the quick connector on the inlet side via a quick connector setup.

Originally Posted by Bohica

What fuel pressure testing gear works with the TD5? Stuff from ebay?
Where do you connect it?

Hi this one worked for me it's a bit cheap but for domestic use it is fine, has all the adapters to suit most make and models. For the Td5 it fitted inline on the FPR.



Universal Fuel Injection Gauge Pressure Tester Test Kit Car System Pump Tool Set 788537801863 | eBay

Originally Posted by thai_tiger

Hi this one worked for me it's a bit cheap but for domestic use it is fine, has all the adapters to suit most make and models. For the Td5 it fitted inline on the FPR.



Universal Fuel Injection Gauge Pressure Tester Test Kit Car System Pump Tool Set 788537801863 | eBay

Between the head and the FPR?

Originally Posted by Bohica

Between the head and the FPR?

I'm pretty sure that's the low pressure(return) line.

Follow the RAVE diagram to be sure .. from tank to the FPR inlet should be the high pressure side.

My guess tho is that will be before the regulator, so more of a test on the fuel pumps ability to pressure the fuel enough to the regulator.
That's probably why Chris at LR Toolbox(link) removed the temp sender and installed the adapter into that area.
(I think) .. this will be measuring the regulators ability to 'regulate' at whatever the value should have been.

Originally Posted by AK83

I'm pretty sure that's the low pressure(return) line.

Follow the RAVE diagram to be sure .. from tank to the FPR inlet should be the high pressure side.

My guess tho is that will be before the regulator, so more of a test on the fuel pumps ability to pressure the fuel enough to the regulator.
That's probably why Chris at LR Toolbox(link) removed the temp sender and installed the adapter into that area.
(I think) .. this will be measuring the regulators ability to 'regulate' at whatever the value should have been.

Ah yes. I see what you mean. How am I going to get my hands in there? My Belly gets in the way LOL.
Tomorrow I'l measure the amps across F10. The ammeter only goes to 10A so if I get a number around 8A I guess that will indicate the HP part of the pump. If the ammeter melts in my hands.... I'll wear leather gloves!! Pump ok

Originally Posted by Bohica

Ah yes. I see what you mean. How am I going to get my hands in there? My Belly gets in the way LOL.
Tomorrow I'l measure the amps across F10. The ammeter only goes to 10A so if I get a number around 8A I guess that will indicate the HP part of the pump. If the ammeter melts in my hands.... I'll wear leather gloves!! Pump ok

Why would you risk to ruin the A-meter when you can measure mV as i explained... that method is tested, i found 2 pumps working only on LP with it