Kind of stumped and looking for some insight.
Fuel pressure is all over the place. Did command vs actual drive into work this morning.
Idling, commanding 45mpa, actual was dipping down into 20 and ramping up to 60 and slowly going back down to 45 and dropping down below it and ramping back up again,
Going down the road while in 6th gear locked, mpa was calling for 75 mpa. It was going down to 60 and ramping up to 85. Not very consistent.
Wot pulls, i would some times see 200mpa, , but it would hold with no issues through the gears around the commanded 190mpa
They are ridge runner tunes. What's throwing me off is we have receipts of the for and pigtail bring replaced in 2017.
I'm leaning towards and fpr.
I also unplugged the lift pump (ppe) to see if it changed it and it did not change it at all. It might of not ramped up past the command mpa, but it still dropped down to 20mpa and ramped up at idle, effected the idle it ramped so hard.
Any thoughts?
Fuel pressure is all over the place. Did command vs actual drive into work this morning.
Idling, commanding 45mpa, actual was dipping down into 20 and ramping up to 60 and slowly going back down to 45 and dropping down below it and ramping back up again,
Going down the road while in 6th gear locked, mpa was calling for 75 mpa. It was going down to 60 and ramping up to 85. Not very consistent.
Wot pulls, i would some times see 200mpa, , but it would hold with no issues through the gears around the commanded 190mpa
They are ridge runner tunes. What's throwing me off is we have receipts of the for and pigtail bring replaced in 2017.
I'm leaning towards and fpr.
I also unplugged the lift pump (ppe) to see if it changed it and it did not change it at all. It might of not ramped up past the command mpa, but it still dropped down to 20mpa and ramped up at idle, effected the idle it ramped so hard.
Any thoughts?
