Need help - low fuel pressure error

[Danishp97]

Hello everyone,

I'm from India, I drive a F06 M6 GranCoupe. Posting on the F10 M5 forum as the M6 forum does not have much activity.

My M6 has vrsf catless downpipes with akrapovic, runs etuners greece stage 2 tune. The car's driven only 16155 miles

I got the car 3 months back, I changed the oil grade to 5W-40, Changed all 8 injectors under preventive maintenance and all 8 coils as well, put Dinan Coils. My indi workshop stated that the car has this particular error which showed up on ISTA - 119202 fuel low-pressure sensor, electrical: Short circuit to ground.

The car however was driving fine, pulling hard after the plugs and coils.

Later on I went on a work trip so couldn't drive the car for two weeks, got back, cranked her, took her for a drive and when I pulled it hard it started to cut power - more like fuel supply cut off for a fraction of a second, and then back to life. Filled up fresh fuel but the problem still persisted. I got the car scanned again with a generic scanner, no new errors or misfire or soft codes detected. Generic scanner too showed only one error - 119202 fuel low-pressure sensor, electrical: Short circuit to ground.

Then I told my tuner to log the car for me via autotuner - https://www.autotuner-tool.com/en/lo...ffe83a11f75655

This the log of my car. This shows that post 4,000 rpm the fuel pressure tapers down a little then post 5,800 rpm it goes down drastically and then goes up again, that explains the fuel cut off feeling. Can anyone help me out how to go about it? Will replacing the fuel low pressure sensor fix this? The car has never showed up a CEL or a drivetrain error. Looking for answers, thanks in advance!

[m5bbq]

ISTA says low pressure sensor but the low pressure is fine. clear it and see if it comes back.

as for the high pressure drop, that's concerning. since they just worked on your injector, maybe they didn't do it right and one is leaking. do you smell gas after wide-open-throttle?

[Danishp97]

Originally Posted by m5bbq

ISTA says low pressure sensor but the low pressure is fine. clear it and see if it comes back.

as for the high pressure drop, that's concerning. since they just worked on your injector, maybe they didn't do it right and one is leaking. do you smell gas after wide-open-throttle?

Originally Posted by m5bbq

ISTA says low pressure sensor but the low pressure is fine. clear it and see if it comes back.

as for the high pressure drop, that's concerning. since they just worked on your injector, maybe they didn't do it right and one is leaking. do you smell gas after wide-open-throttle?

The low pressure sensor error is permanent. Comes back instantly after clearing. And no I do not smell gas after WOT run