2005 Gmc Yukon slt 5.3 has major issues please help

[WannaBeYukonMechanic]

My significant other bogged my Yukon down to just below the frame, of course to get it that far down he was revving the engine pretty hard. Once we got it out it has been in reduced power mode ever since. Along with all these wonderful codes: 

p0113, p0118, p0358, p0361, p0442, p0443, p0448, p0449, p1516 and p2135. Before the bog down, we’ve put a new battery on it, new throttle position sensor trying to fix an issue where pressing the accelerator was like hitting the brakes, the more you tried to accelerate, especially from a stop, the more it became another brake! To stop that issue so I could get home after work a friend of ours pulled a fuse disabling stabilitrack, I’m pretty sure that’s the fuse he pulled. Anyway, my truck ran like brand new until it was bogged down. Now it blows blue smoke, idles so bad, it’s in limp mode. 35mph is what it’ll do 40 if I’m going downhill and gotta beg it to go up the next. Where do I start with these codes…. And another question my OBD2 code reader, code p0358 says ignition coil h and code p0361 says ignition coil k, but nowhere can I find anything about them being called by letter, it’s by number…..wtf???  Thank y’all in advance for any help guidance you can offer, I’m way in over my head but I’ve had a few try to rip me off so I’ve learned I can work on it myself with a little patience and guidance! And what a thrill to fix it too!!!

[asilverblazer]

10 hours ago, WannaBeYukonMechanic said:

My significant other bogged my Yukon down to just below the frame, of course to get it that far down he was revving the engine pretty hard. Once we got it out it has been in reduced power mode ever since. Along with all these wonderful codes: 

p0113, p0118, p0358, p0361, p0442, p0443, p0448, p0449, p1516 and p2135. Before the bog down, we’ve put a new battery on it, new throttle position sensor trying to fix an issue where pressing the accelerator was like hitting the brakes, the more you tried to accelerate, especially from a stop, the more it became another brake! To stop that issue so I could get home after work a friend of ours pulled a fuse disabling stabilitrack, I’m pretty sure that’s the fuse he pulled. Anyway, my truck ran like brand new until it was bogged down. Now it blows blue smoke, idles so bad, it’s in limp mode. 35mph is what it’ll do 40 if I’m going downhill and gotta beg it to go up the next. Where do I start with these codes…. And another question my OBD2 code reader, code p0358 says ignition coil h and code p0361 says ignition coil k, but nowhere can I find anything about them being called by letter, it’s by number…..wtf???  Thank y’all in advance for any help guidance you can offer, I’m way in over my head but I’ve had a few try to rip me off so I’ve learned I can work on it myself with a little patience and guidance! And what a thrill to fix it too!!!

Start with the basics.

 

Presumably everything is covered in mud. Clean it all out. Make sure no mud or water or other contaminates entered the air intake track.

 

After everything is cleaned inspect all wiring connections that they are connected, intact and no wires have been chaffed snagged or burnt. Look closely also where the main connections to the PCM are.

 

Disconnect the battery for a few minutes and reconnect to reset everything and report back any new codes. 

 

Getting stuck generates a lot of heat, since your actual speed is low it can build up under the hood and chassis. Mud can also get pushed places it shouldn't and can push wires and connections against hot surfaces they wouldn't normally contact causing them to melt or break. When the vehicle is close to the ground wires can also get snagged and pulled loose or unplugged.

 

For now I would proceed as if there is no significant physical damage and the issues stem from the PCM not getting correct signals, all the codes indicate a problem with the sensor(s) circuit, they have either been unplugged or the wiring to them damaged.

 

P0113 Intake Air Temperature Sensor 1 Circuit High

P0118 Engine Coolant Temperature Sensor 1 Circuit High

P0358 Ignition Coil H Primary Control Circuit/open

P0361 Ignition Coil K Primary Control Circuit/open

P0442 EVAP System Leak Detected (small leak)

P0443 EVAP System Purge Control Valve A Circuit

P0448 EVAP System Vent Control Circuit Shorted

P0449 Evaporative Emission System Vent Valve/solenoid Circuit

P1516 Throttle Actuator Control Module Throttle Actuator Position Performance

P2135 Throttle/Pedal Position Sensor/switch A/B Voltage Correlation