P2238 - drive on accel or engine charging is shuttered - shuttering behavior

lurching car behavior stuttering/shuttering .. the behavior car has with the P0000 and p2238 ,,
is this the air fuel ratio sensor bank 1 possible short circuit as sensor fails perhaps wiring ?

P2238 TOYOTA A/F Sensor Bank 1 Short Circuit: Code Meaning, Causes, Symptoms, & Tech Notes

 

just using the scanguage 2 ,, next up will be my sears code reader, i do have a techstream that runs on windows 32 (not 64) to fall back on if needed.. i also have torque - which is better than techstream on some things, for ex. bringing up all the block voltages real time .

 

i just typed in 20 codes and their descriptions, the page wanted me to log in then said security error, then i couldnt page back and finally the work is gone!

P0303 Cylinder 3 Misfire Detected
p2238: A/F Sensor Bank 1 Short Circuit
craftsman readiness reading , (20 codes!)
0300 Random Cylinder Misfire Condition
0171 Air/Fuel Mixture System Lean Bank 1
0172 System Too Rich Bank 1
0100 Mass or Volume Air Flow Circuit
0102 Mass or Volume Air Flow Circuit Low Input
0103 Mass or Volume Air Flow Circuit High Input
0125 Insufficient Coolant Temperature for Closed Loop Fuel Control
0128 Coolant Thermostat
0136 HO2S12 Circuit Malfunction
0137 Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2
0138 Oxygen Sensor Circuit High Voltage Bank 1 Sensor 2
0325 Knock Sensor Circuit Malfunction
0420 Catalyst System Efficiency Below Threshold Bank 1
0441 Evaporative Emission Control System Incorrect Purge Flow
0442 EVAP System Small Leak Detected
0446 EVAP System Vent Control Circuit
0451 EVAP System Pressure Sensor Range/Performance
0455 EVAP System Gross Leak Detected
0456 EVAP Control System Leak Detected Very Small Leak
0505 Idle Air Control System

how long do u think a battery reset will last ?
AND , that little 'ev mode over-ride button' installed during the engine replacement is probably a good thing NOT to use anymore --

 

so the battery discon , (reset) , gave a good trip test around neighborhood and then about 10 min into a drive it started and the check engine light went on. ..
this time i tried reseting (clearing codes) .-.. didnt seem to do as much as the hard reset ...
i noticed the lugging action occurrs when in partial throttle, so during hard throttle it seemed to go away , and eventually the check engine light went away ? then it came back ... its a phinicky mistress ... it seems getting at the a/f ratio sensor is not too bad ..
but i have so many codes that it seems all 3 sensors may need attention ..

 

I'm not sure that torque is going to give me any better error report than the Craftsman scanner did,
Torque is great for visuals , but I think the scanner actually does a 'deeper dive ' into errors.

I do have the techstream to see if i'm getting bogus or not from the craftsman .. just a pain to get a laptop out there with extension cord !

 

yes we have had a lot of rain the past several days , the vehicle has over 150k, but the engine @ ~102k was replaced with an '06 motor (in ~2015) with ~60k, so 60+48k is less than 110k supposedly on motor. plugs, ummm... ---- ????? not sure on that ... as there was a about a 2+ year period where the car sat off the road ... I have not inspected plugs recently but sounds like the thing to do. I thought I might have replaced plugs on previous motor, and hopefully had transferred the new plugs to the replacement motor, but my records and memory are not clear with all the time and events happening in the past few years ,(esp recently)..

I need to rescan using the craftsman to see what it brings. Better yet get the techstream hooked up, though I'm not super practiced in using it .

the latest DTC the scanguage is reporting is a 2062, recovery thermal pump error. (not critical , this leads to faster warmup, pulling heat out of the thermos bottle to the head for faster warmup and quicker MPG)

 

I will pull the boots tomorrow (dang, that boot pulling tool is never around when u need it ) -- and check the wells -- good thing i resisted spraying down the engine compartment with a hose to clean road debries/dust .. though I had thought of the engine degreaser spray to do the job properly ..

I havent noticed much /any stuttering .. if so it was very limited in today's driving .. perhaps the wetness dried , i mean those wells are pretty well sealed by the boot and coil atop .. the only way i think u could get water in is if u had a leaky boot and/or pressure hose cleaning to get it in ..

 

can we add that , if engine is warm (or almost) and engine running while coming to stop, and ev mode is available, that would stop burning unneeded gas by just regenning to stop , sometimes this happens even when engine is warm, some 'housekeeping' being done by prius engine control ...

 

I saw a utube where the guy does not use a torque wrench to tighten plugs !!!! ACK !!

This much more thorough video states 40 thousands (has Denso ) on plug gap and 13 ft pounds for plugs and coil bolts ...

 

Loaoks liko samo water got in there .. and some rust of the plug, but the gap is about 40thou and
the torque was prob around proper (i certainly set it back that way) - ithis is #1 plug? (or the plug with the longest connector)
I did not pull any others , i would say that water has been in there but has since evaporated ... i should have used air compressor in well before removing plug... not sure how much incidence of isolation ( insulation) is compromised because of rust .. or if plug is still performing properly..
but it does look nasty ! i know these do cost a pretty penny to replace ..

 

techstream pulls p0303 (not marked as current)
P2238 A/F Sensor Bank 1 Short Circuit

*** Saw a post about invertor pump - In READY, there is turbulence in INV resorvoir.
Possible Causes

• Faulty EFI Relay
• Faulty Air/Fuel Sensor Bank 1
• Air/Fuel Sensor Bank 1 harness is open or shorted
• Air/Fuel Sensor Bank 1 circuit poor electrical connection
• Faulty Engine Control Module (ECM)

P2601

 

reset codes , drove around neighborhood 1 mile no problem .. later went for longer drive, didnt even get out of neighborhood and same 2238 is back .... raining wet puddle environment makes this situation worse .

 

is this the proper location and sensor here ? :
P2238 2005 TOYOTA PRIUS Oxygen A/F Sensor Reference Ground Circuit High Bank 1 Sensor 1: Code Meaning, Causes, Symptoms, & Tech Notes
I intend to get under the car for inspection of this sensor at the base of the manifold(exhaust) .. right before the pipe connection to the 1st muffler/baffle and cat ..