XDI 35 failed

C

ChrisxHowe

Member
Well pretty sure my 8 day old XDI 35 HPFP has failed...I did a pull today and I felt the car bog thankfully I was pretty much home, I parked and at idle I’m only at .35MPa rear fuel pressure I took off a little up my drive way and at 1800rpm it maxed out at .45MPa also had a P0087 code.

Loaded different tune same issue
Just got done installing the stock HPFP and everything is fine and running good

My next step I guess is trying to get ahold of XDI for warranty really sucks I was on my 6 revision and Flex was moving out! Car felt so strong


Sent from my iPhone using Tapatalk
 
Chris_Flex said:
Well pretty sure my 8 day old XDI 35 HPFP has failed...I did a pull today and I felt the car bog thankfully I was pretty much home, I parked and at idle I’m only at .35MPa rear fuel pressure I took off a little up my drive way and at 1800rpm it maxed out at .45MPa also had a P0087 code.

Loaded different tune same issue
Just got done installing the stock HPFP and everything is fine and running good

My next step I guess is trying to get ahold of XDI for warranty really sucks I was on my 6 revision and Flex was moving out! Car felt so strong


Sent from my iPhone using Tapatalk
Click to expand...

I would guess your Fuel Pump Driver (relay) went bad. $65 part at the dealer. Easy to install. 5 minute job.
 
Macgyver said:
Chris_Flex said:
Well pretty sure my 8 day old XDI 35 HPFP has failed...I did a pull today and I felt the car bog thankfully I was pretty much home, I parked and at idle I’m only at .35MPa rear fuel pressure I took off a little up my drive way and at 1800rpm it maxed out at .45MPa also had a P0087 code.

Loaded different tune same issue
Just got done installing the stock HPFP and everything is fine and running good

My next step I guess is trying to get ahold of XDI for warranty really sucks I was on my 6 revision and Flex was moving out! Car felt so strong


Sent from my iPhone using Tapatalk
Click to expand...

I would guess your Fuel Pump Driver (relay) went bad. $65 part at the dealer. Easy to install. 5 minute job.
Click to expand...
I installed the stock hpfp and everything was back to normal


Sent from my iPhone using Tapatalk
 
I believe this is the first failure that I have seen with a XDI pump.  However I am only limited in my 3.5 EB scope being regulated to just the MKS and the SHO. 
 
Well that sucks... and I hope that's an anomaly, since I received mine at the same time, I'm hoping it's not a manufacturing issue with the new design.
 
Been in contact with XDI all morning sending datalogs and photos of the pump itself now just waiting on what to do next....


Sent from my iPhone using Tapatalk
 
Uwe at XDI told me to try and compress the spring on the pump by putting it on the table and putting all your weight on the pump to try and get the spring to move and it didn’t, he said it’s hard to get it to move but it should move slightly.
Since it did not move at all it’s likely the piston has seized in the pump.

I’m gonna ship it back today hopefully for a fast turn around


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Ahh, got it, he will take care of you, you'll get back on "pumping" in no time :)
I love my XDI pump and E40 tune...

Have you check the E85 for ethanol reading lately?
 
SuperPete said:
Ahh, got it, he will take care of you, you'll get back on "pumping" in no time :)
I love my XDI pump and E40 tune...

Have you check the E85 for ethanol reading lately?
Click to expand...
No I plan on doing that soon I usually always do in the spring


Sent from my iPhone using Tapatalk
 
Chris_Flex said:
Well pretty sure my 8 day old XDI 35 HPFP has failed...I did a pull today and I felt the car bog thankfully I was pretty much home, I parked and at idle I’m only at .35MPa rear fuel pressure I took off a little up my drive way and at 1800rpm it maxed out at .45MPa also had a P0087 code.
Click to expand...

I've had a similar issue however it was temp related. Below 37~38'degrees the desired output was at this lower .37Mpa range.  Once the temp read higher all things were back to normal.
I was told it was a corrupt file. Different Tuner, but received an updated file.  This was at the beginning of winter (Michigan), just ran the stock pump and lower tune. 
 
Chris_Flex said:
SuperPete said:
Ahh, got it, he will take care of you, you'll get back on "pumping" in no time :)
I love my XDI pump and E40 tune...

Have you check the E85 for ethanol reading lately?
Click to expand...
No I plan on doing that soon I usually always do in the spring


Sent from my iPhone using Tapatalk
Click to expand...

Sheetz in Reading was 80-85 tested maybe 10 days ago.
 
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