P2073 and P2074 WTF? Updated if anyone cares
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More Turbo
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P2073 and P2074 WTF? Updated if anyone cares
Ive replaced my map sensor 3 times since I have this issue. Having a new map sensor in it I was driving my truck this am when It went into low power mod. The check engine light has been on for a few days for P2074. Ive gotten tired of clearing it and wasnt sure wtf else to do. It threw some more codes.
P04DA
P0234
P0069
Prior to this happening my boast gauge needle went in the middle while I had low RPM. I was able to limp it home. Im trying not to take it to the dealer but I seems like I might have no choice. Ive checked the air filter, I pulled the Map sensor and it looks brand new. The MAFS appears to be fine as well. Im going to check my for any wires that may have been gotten too hot from the MAP sensor or on the side of the EGR. Im looking for advise where to check?
2011F250 130k
P04DA
P0234
P0069
Prior to this happening my boast gauge needle went in the middle while I had low RPM. I was able to limp it home. Im trying not to take it to the dealer but I seems like I might have no choice. Ive checked the air filter, I pulled the Map sensor and it looks brand new. The MAFS appears to be fine as well. Im going to check my for any wires that may have been gotten too hot from the MAP sensor or on the side of the EGR. Im looking for advise where to check?
2011F250 130k
Last edited by DeeDubz; Mar 6, 2024 at 12:22 PM. Reason: update
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If anyone cares I was able to pull the upper and lower manifold as well as the throttle body. I watched a couple of youtube videos saying that theres gotta be something wrong with the intake. Air filter, cold air tubing is all good. MAFS looks brand new. The throttle body was pretty dirty. I cleaned it with throttle body cleaner. From the throttle body to the turbo IT looked like coal. I pulled the manifolds over cleaned them and let them dry over night. The turbo looked good no play and the impeller looks intact no broken fins. Im hoping this fixes the issue. If not ill probably be taking it to the diesel place by my house. Unless anyone has any other ideas... not that ive gotten a lot of replies. Today im gonna put all the stuff back and go from there. If i ever have to take this thing off IM going to delete my truck. The nastiness of the manifold from the EGR is horrible. This sludge is no joke.
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I put the manifold back together as well as the intake piping. I took my truck for a test drive and had the same issues. Low power mode not even a block away from my house. I was pretty frustrated so I took a break. Later in the after noon I did a few things. I replaced the MAFS and MAP sensor. Also disconnected the battery. Took the truck for a rip and no issues what ever or CEL. This am im going to go get some fuel and put some miles on it just to be sure. Ill have to look into the CCV.
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More Turbo
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Update
I replaced the MAP sensor with an OEM as well as the MAFS. Cleaned out the throttle body and manifold. Within 6 ish miles I get a P2074 code WTF!?!?! Im have no idea where to go from here. Id really like to try and fix it myself without taking it to a shop. Could someone point me in a direction? Id really appreciate it.
Fleet Mechanic
Joined: Oct 2022
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From: Dallas Metroplex
If everything is clear on the intake side, maybe there's restriction further downstream? DPF plugged? From your model year, I'm not sure if you can force regens, but perhaps your DPF could be a potential issue?
Found a couple of posts from other diesel forums that describe what you're experiencing, with this one a possible assist: https://www.thedieselstop.com/thread...filter.401185/
Found a couple of posts from other diesel forums that describe what you're experiencing, with this one a possible assist: https://www.thedieselstop.com/thread...filter.401185/
Hotshot
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What I would do…
get a tool like forscan or the fre odb2 software that comes with the obd2 Bluetooth transmitter and check to see what % soot your dpf is. From your report of immediate low power mode…I would guess that it is super clogged.
if it is clogged….i would buy some Lucas dpf deep clean or some Lowe’s mean cleaner and put in a mega dose of both
then put the vehicle into a operator commanded regen…if you don’t have the console pick off for that…then use iPhone or anndroid version of forscan and pick operator commanded regen.
immediately after the regen is complete take off for a high speed drive. Typically when an operator commanded regen finishes your dpf percent soot will be between 9 and 12 %. After the immediate drive , sine more soot will burn off and you will drop another 2 to 3 %.
if your dpf does not behave as described…you might want to try the process one more time if your soot numbers went down.
curious as to the out come.
get a tool like forscan or the fre odb2 software that comes with the obd2 Bluetooth transmitter and check to see what % soot your dpf is. From your report of immediate low power mode…I would guess that it is super clogged.
if it is clogged….i would buy some Lucas dpf deep clean or some Lowe’s mean cleaner and put in a mega dose of both
then put the vehicle into a operator commanded regen…if you don’t have the console pick off for that…then use iPhone or anndroid version of forscan and pick operator commanded regen.
immediately after the regen is complete take off for a high speed drive. Typically when an operator commanded regen finishes your dpf percent soot will be between 9 and 12 %. After the immediate drive , sine more soot will burn off and you will drop another 2 to 3 %.
if your dpf does not behave as described…you might want to try the process one more time if your soot numbers went down.
curious as to the out come.
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Thanks for the replies. Im going to look into the DPF filter. I thought it might be the EGR needs to be replaced could it be? its got 130K
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Hotshot
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Clogged egr won’t put it into reduced power mode immediately
the egr valve doesn’t even open until the engine partially warms up..on my truck..that’s 3 to 4 minutes . So if it was only a clogged egr…you could drive it a few minutes before it throws codes. But you’re saying it goes into reduced power mode immediately.
the egr valve doesn’t even open until the engine partially warms up..on my truck..that’s 3 to 4 minutes . So if it was only a clogged egr…you could drive it a few minutes before it throws codes. But you’re saying it goes into reduced power mode immediately.
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I just got another P0401 code exhaust gas recirculation low insufficient detected, does this mean its not a DPF issue? It hasn't gone into low power mode since Ive replaced the Map sensor. However Within 6 miles of replacement I threw the P2074 code then Today it threw the P0401 code. Truck is running good but I think I either need to clean the DPF or the EGR service. What do you guys think?
FTE Legend
Joined: Mar 2017
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From: Western NY
I just got another P0401 code exhaust gas recirculation low insufficient detected, does this mean its not a DPF issue? It hasn't gone into low power mode since Ive replaced the Map sensor. However Within 6 miles of replacement I threw the P2074 code then Today it threw the P0401 code. Truck is running good but I think I either need to clean the DPF or the EGR service. What do you guys think?
Super Moderator
Joined: Aug 2008
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From: Frederick, MD
P0401 is gonna be the cooler. You can do it yourself. There have been a few videos of people taking it out and cleaning it with some simple green with success. Or just get a new core.
Do that then see what codes come up after that repair.
That is the one i would address right now.
Do that then see what codes come up after that repair.
That is the one i would address right now.
Hotshot
Joined: Jul 2013
Posts: 14,256
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P0401 is gonna be the cooler. You can do it yourself. There have been a few videos of people taking it out and cleaning it with some simple green with success. Or just get a new core.
Do that then see what codes come up after that repair.
That is the one i would address right now.
Do that then see what codes come up after that repair.
That is the one i would address right now.
the only issue I have with cooler suggestion is that the OP said he has immediate reduced power upon startup. The egr valve open Takes a few minutes so basically the egr is closed upon startup and for a few minutes afterwards.
doesn’t hurt to clean the egr …
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The low power hasn't happened since I replaced the MAP sensor. The map sensor I bought wasnt oem. Ive purchased 3 this yr so far. Since Ive put a brand new OEM map sensor it hasn't gone into low power mode. However It throws the P0401 and P2074. Today Im going to try and see if my DPF is clear. If thats the case then I guess ill be doing a EGR in the near future.... Id really like to delete the truck but I think at this point its a pain in the ***. In CA it would be hard to sell. Im sure in a few yrs im going to upgrade to a f450. Thank you for the replies. I will update if anyone cares.