Damn, unfortunately, the flange was done about 6 months ago. My wife drives this so I’ll need to see if the code was thrown again today. If so, I’ll use a different code reader bc I don’t think the one I used yesterday gave me more digits. I could be mistaken tho.Have you had the fuel flange recall done yet? I've gone round and round with the code you're asking about. There actually should be 2 more digits after that code. Those last 2 are kind of important because they differentiate between erratic signals, low or high signal. The general drift of the code is that the computer doesn't like the duty cycle running your fuel pump. The PCM sends pulse width signal to the fuel pump driver and the fuel pump driver uses that to increase or decrease fuel delivery. The PCM likes the dwell to be under 30% if I remember correctly.
It's a sign that your pump is getting weak. I asked about the flange recall because I've fixed them with just the flange before. I think the check valve that holds fuel up in the lines is in there. I used to replace both the flange and the pump. A service writer didn't sell the flange once to save a guy some money. I just put the pump in and the car still had the fault on cold start. I put the flange in, and it fixed it. So, if you haven't gotten the recall done get that done first, I suppose. But keep in mind you could get the pump put in at that time with little or no labor.
Our LR4's fuel pump died after the flange was replaced... But in two instances - one when pump controller died, another when the pump itself died, no codes were logged, no CEL, nothing. As if I simply ran out of gas.Damn, unfortunately, the flange was done about 6 months ago. My wife drives this so I’ll need to see if the code was thrown again today. If so, I’ll use a different code reader bc I don’t think the one I used yesterday gave me more digits. I could be mistaken tho.
Our LR4's fuel pump died after the flange was replaced... But in two instances - one when pump controller died, another when the pump itself died, no codes were logged, no CEL, nothing. As if I simply ran out of gas.
Yes it's worth a shot. But don't be surprised if it still has the problem. But definitly worth a shot if hasn't had PCM software in a while.
Any guesses on what dealerships charge for this type of service? The upsell they push at the dealerships im familar with is akin to going to the dentist.Yes it's worth a shot. But don't be surprised if it still has the problem. But definitly worth a shot if hasn't had PCM software in a while.
Yeah, these dealerships in the mid-Atlantic have balls and 9/10 of their customers don’t. I have an indie shop I’ll work with. I like to do as much homework as I can to keep from using any more of his time as possible. He’s got Autologic, so we’ll figure out tomorrow whether it’s the high or low pressure pump that I need.2 fucking K? That’s like at least 1500 in labor. Run like hell. Write a letter asking how they came up with that #. Cause somebody is stealing.
Why are they trying to diagnose the high pressure fuel pumps when the fault is for the low pressure side? I’d suggest finding a new shop.