Okay! It's been over a months journey with fixing this truck, and I'm here to beg for help.

How it started: had an oil change, a while back, on long drive after, check engine light staeted flashing as I accelrated up hill so I pulled over and in a while it was ok, but couldn't get on the gas too much, or it would cause that flashy light thing.
So fast forward to now, after driving it with an intermittent miss for a while, was driving it to work and the miss became a shudder, and she stopped going over 30-40, and runs extremely rough.

Steady but loud idle.
Replaced all plugs with motocraft plugs and new coils all around. No change.
Finally hooked it up to a computer and got random misfires, now it's saying
P0174 bank 2 too lean,
But it's bank ONE that's the only side misfiring.
So I
Hoping to post my codes here in the hopes that some magician can help me figure out the next step before I start replacing VCRs, phasers, Cats, and sensors.

Here are the freeze frame details:
Frame 1 Mod $00
MIL Status Off
Troub Code P0174
Abslt TPS 24.3%
Eng speed 1665
Baro PRS 71 kpa
Calc Load 100%
MAF Flow 49.99 gr/sec
Out Temp 59
Coolant 181
IAT 96•
Ign Advance 21.5
ST FTRM1 -12.5% that's NEGATIVE
LT FTRM1 -6.3%
ST FTRM2 39%
LT FTRM2 29.6%
Veh speed 22
ABSLT LOAD 47%
REL FRP 285.19kpa
Fuel Sys 1 closed
Fuel Sys 2 NA
REL TPS 12.9
THROT CMD 15.6%
ABS TPS B 37.2%
ACC POS D 22.7%
ACC POS E 33.3%
ACC POS F 21.5%
Cat temp 11 1229degrees
CAT TEMP21 1229 deg
Evap purge 0.0
Evap vp 0.0
CMD eq ratio .999
02s11 .885v
ST FTRM 11 -12.5
02S12 0.705v
ST CTRM12 99.2%
02S21 .815v
ST FTRM21 39%
02S22 0.090v
ST FTRM22 99.2%
Clr dist 0
Clr trps 512
Fuel level 26.6%
VPWR 14.042v

 

Your short term and long term fuel trims look suspicious on bank 2. The long term should be close to zero (within +/- 10) and the short term should be changing rapidly + and -. Your code was set by the long term trim (LT Ftrim). Strange that bank 1 appears to be OK. It could be a exhaust manifold leak before the oxygen sensor on the drivers side. The last thing it could be is the O2 sensor. I had a similar issue and I had monkeyed with the PCV hose. Check the elbow where it comes out of the engine. Your ECM meters the air intake and the PCV IS included so it has to be intact. It can produce some large vacuum and has be to accounted for in the metering calc.

 

You destroyed the catalytic converter on bank 1 by driving it with misfires. It has broken apart and is clogging the exhaust.

 

@ Fordmom530


WTF?? You don't like the answer you got to this question - ((https://www.ford-trucks.com/forums/1...l#post15086989 )) or can't find where your originally posted the question - or don't want to answer @ enriched&beyond's question - or just get a kick out of posting the same question on multiple threads?