Low torque at WOT no fault codes

[downforce137]

Foxwell NT510 ford diagnostic tool. It’s not an Autozone scanner. I have 2 way control, can program modules, reset adaptation tables, view live data etc. I’ve hand checked all of the common areas for leaks etc. everything is tight and sealed. I suspect the ecu is pulling timing for some reason, and I suspect maybe weak ignition coils and plugs. I’m going to replace both and report back. I live in Massachusetts, they’re isn’t a Raptor community here ( despite seeing them daily lol)

you can watch all these things on a forscan datalog is why i was asking.. boost pressure, timing advance and so on...

not sure that scan tool will do the graphs and things, but forscan on a laptop for sure will..

 

[smurfslayer]

you can watch all these things on a forscan datalog is why i was asking.. boost pressure, timing advance and so on...

not sure that scan tool will do the graphs and things, but forscan on a laptop for sure will..

^^^^
THIS.
pay attention.

 

[Raptor_Kiwi2]

^^^^
THIS.
pay attention.

I don’t have forscan or a laptop. You don’t have to be condescending either, instructing me to pay attention. I am aware how live pid’s work and how to understand/diagnose from them, I just don’t have the ability. Forums have always been a resource for information ( at least on the bmw side) without the condescending undertone. Appreciate the responses but I might delete the post

 

[smurfslayer]

my intent was not to talk down to you and if it came across that way, I apologize. I was trying to draw attention to his post and nothing more, because I believe he’s on to something relevant.

Keep in mind though- if we didn’t want to help, we’d have never responded in the first place.

 

[FordTechOne]

Foxwell NT510 ford diagnostic tool. It’s not an Autozone scanner. I have 2 way control, can program modules, reset adaptation tables, view live data etc. I’ve hand checked all of the common areas for leaks etc. everything is tight and sealed. I suspect the ecu is pulling timing for some reason, and I suspect maybe weak ignition coils and plugs. I’m going to replace both and report back. I live in Massachusetts, they’re isn’t a Raptor community here ( despite seeing them daily lol)

As others have mentioned, I’d highly recommend getting ForScan. The software is free and the adapter is only $50 on Amazon. As a Master BMW tech, diagnose it just like you would any other driveability/engine performance issue using the available PIDs.

You can purchase a 72 hour subscription to Ford service information from the Motorcraft Servive website and download/print all the applicable diagnostic PPTs, PID specs, wiring diagrams, etc.

 

[letsgetthisdone]

Make sure the engine air filter is clean, and check for boost leaks (actually check, as in with a pressurized smoke machine).

When looking at data, you're going to want to be able to see commanded vs actual torque, and log the engine management PID's that tell you why the ECU is reducing torque (if it is). Torque source, spark source, throttle angle source, etc

Could be something as simple as its jumping in and out of FMEM because of wonky sensor reading somewhere, which is causing a performance issue but isn't far enough out to cause a code.

 

[GCATX]

Did you check the engine earl level?

 

[Raptor_Kiwi2]

Make sure the engine air filter is clean, and check for boost leaks (actually check, as in with a pressurized smoke machine).

When looking at data, you're going to want to be able to see commanded vs actual torque, and log the engine management PID's that tell you why the ECU is reducing torque (if it is). Torque source, spark source, throttle angle source, etc

Could be something as simple as its jumping in and out of FMEM because of wonky sensor reading somewhere, which is causing a performance issue but isn't far enough out to cause a code.

I’m on vaca for a week. When I’m back to work I’ll run a smoke test. Air filter was replaced 3 months ago during its last visit to the dealer ( all new front and rear suspension, upper control arms, lower ball joints, tie rods, new belts, all new filters, new oil pan, new radiator blinds, new driveshaft.) one thing to note is I’ve seen my coolant temp get up to 238*F several times, and I wonder if coolant temp could affect it ( reduced engine output to prevent overheating)

 

[TwizzleStix]

Not likely coolant temp, but for SURE the intake air temp and/or manifold air temp will cut power back substantially. Maybe take a course on Ford engine management. There’s lots of data out there. Sounds like you’re not taking the time to really notice wtf is going on. If you’re an auto tech, then it’s all on you. Read-up on it and figure shit out.

 

[Raptor_Kiwi2]

Not likely coolant temp, but for SURE the intake air temp and/or manifold air temp will cut power back substantially. Maybe take a course on Ford engine management. There’s lots of data out there. Sounds like you’re not taking the time to really notice wtf is going on. If you’re an auto tech, then it’s all on you. Read-up on it and figure shit out.

The way engine management on modern BMW’s and Fords work are not the same. I also don’t have Forscan, whereas I have full factory diagnostic software for bmw, full access to engineering support, advanced diagnostic information and my regions technical service engineers phone number saved in my speed dial list. I’ve done all the normal diagnostic procedures, observed live operating values on both my foxwell nt510 and my snapon modus, and I don’t see anything out of the ordinary, which is why I’ve turned here. If it was as simple as observing information, at least what I’m allowed to see with my equipment, and replacing faulty components, I wouldn’t have made this thread, asking questions. My truck would be fixed.

Not likely coolant temp, but for SURE the intake air temp and/or manifold air temp will cut power back substantially. Maybe take a course on Ford engine management. There’s lots of data out there. Sounds like you’re not taking the time to really notice wtf is going on. If you’re an auto tech, then it’s all on you. Read-up on it and figure shit out.