Bruce_K

so i have Z06 charged Z51... everything is fine except i have these codes. im unsure where to look. i looked up the codes and once overed the car but im still not finding anything. thought I would reach out to the forum for some help

0x7E8: P0054 - HO2S Heater Resistance (Bank 1, Sensor 2) (Permanent)
0x7E8: P0096 - Intake Air Temperature Sensor 2 Circuit Range/Performance (Permanent)
0x7E8: P0097 - Intake Air Temperature Sensor 2 Circuit Low (Permanent)
0x7E8: P00F4 - Humidity Sensor Circuit Low (Permanent


thanks guys

FYREANT

did you have the car tuned after adding the Z06 supercharger?

Bruce_K

Good to see you responding FyreAnt

Yup all tuned up, been running well. i assumed the codes were because i was catless. checked and those popped up. the intake ones are really throwing me off. i cant find much info about those.

Bruce_K

Bump! Any one?

cdbrito

Taeyoung Lee

Internets_Ninja

Pretty sure P0054 is for your driver side rear O2 sensor. Do you even have rear O2 sensors in the car still?

Also pretty the Intake Air Temp Sensor setup is different for the LT4. MAF is sensor 1 but can be broken out for boosted applications. Sensor two is in the manifold somewhere. Either your tune has sensor 2 enabled and you don't actually have a second sensor installed or you have sensor 2 unplugged after the LT4 blower conversion and there is no signal getting to the ECU and the tuner didn't turn it off.

Humidity sensor might be part of the temp sensor so if that is missing you will get the humidity sensor code too.

RAW INC

I see that this thread is a bit old for my reply, but I came across it trying to find the answer since I was having the same problem. So to help out my fellow diy peeps here was my situation. The wire to my O2 sensor was, lets just say singed, lol. Long story short after I repaired the wires I was still receiving these codes. Come to find out I had blew a fuse #36 for me. Hope my two cents helps the next one.

Taeyoung Lee

Thats right I found out 02 sensors bank 1 and 2 tied to Ignition circuits which is fuse number 36. I checked all wires with multimeter and static voltage on MAF. Also MAF contains IAT,1 IAT2, humidity sensor and pressure sensor. After replacing ignition fuse 36 everything is working ok.
thank you

EliZ06

For anyone reading this in 2021, I have a 2019 Corvette z06 and the correct fuse is F77 Engine Outside Position (15A) - Previous C7's use the fuse F36
I replaced that, cleared the engine codes and BOOM! Everything is working again, no errors!

Mind you... I did buy and install a new MAF sensor (thought it was just a bad MAF sensor), but found out it was actually the fuse!