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Multiple Codes - Help Needed. : Images attached

JerzNick

JerzNick

SE Level Member
I just noticed yesterday while driving on the highway that my GTP was sputtering... I could feel it and see the rpm's bounce up & down.

Mods: 00 GTP - CAI - Headers - 3.4 Pulley - Autolite 606's

Hooked up HPT and went for a ride. The following 3 codes are active...

P0128 - Coolant Thermostat
P0140 - HO2S Circuit Insufficient Activity Bank 1 Sensor 2
P0171 - Fuel Trim System Lean Bank 1

I also noticed my LTFT is @ 16.4 which I read is indicitive of a vac leak?!

Also, There are a bunch of DTC tests pending, but never complete...

Any ideas?

IMG_0161.JPG



IMG_0159.JPG


IMG_0160.JPG



Vid of Scan:

http://youtu.be/3myBdNK5fuA

Sorry for the poor quality... I can't afford a new phone because all my money goes into this car :)
 


Are you running an EGR?

If not go and set all the EGR codes to NO REPORT and those will never come up again.

The causes for a P0140 code are fairly few. They could be any of the following:

  • Shorted heater circuit in O2 sensor. (Usually requires replacement of heater circuit fuse in fuse block also)
  • Shorted signal circuit in O2 sensor
  • Melting of harness connector or wiring due to contact with exhaust system
  • Water intrusion in harness connector or PCM connector
  • Bad PCM

Sounds like the O2 sensor wires got shorted or the sensor died. That can also cause a lean code to pop up as the sensor is faulty and not giving proper readings.
 
Fivefingerdeathpunch said:
Are you running an EGR?

If not go and set all the EGR codes to NO REPORT and those will never come up again.

The causes for a P0140 code are fairly few. They could be any of the following:

  • Shorted heater circuit in O2 sensor. (Usually requires replacement of heater circuit fuse in fuse block also)
  • Shorted signal circuit in O2 sensor
  • Melting of harness connector or wiring due to contact with exhaust system
  • Water intrusion in harness connector or PCM connector
  • Bad PCM

Sounds like the O2 sensor wires got shorted or the sensor died. That can also cause a lean code to pop up as the sensor is faulty and not giving proper readings.
Click to expand...

That happened exactly. The Bank 1 o2 wires were against the headers and melted to one another. I got a new harness and o2. Just a week ago...
And no EGR. I couldn't find "no report" I was only able to turn off SES light :/
 
Well, guess I missed a spot when I sprayed the first time around. There is actually a whistling leak at the lim coolant bypass cover :/


Sent from my iPhone using Tapatalk
 


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