Jump to content

P0178 please help

joeybaila
 Share

Recommended Posts

joeybaila New Member

joeybaila

Posted
Posted

Hey Guys I recently bought a 2001 Silverado with a 5.3 vortec swap. The truck originally came with the v6 and the previous owner did a 5.3 vortec swap. The truck has a code p0178, flexible fuel sensor circuit low input. My truck did not have flex fuel originally. Any help with solutions to get rid of the code to clear the check engine light so I can get it inspected. Can I go to a shop and have them disable the circuit so that it clears the lights, or do i need to install the sensor  and have someone tune it for me? thank you in advance. 

chem_man Enthusiast

chem_man

Posted
Posted

I do not believe GM produced any flex fuel Silverados in 2001.  Double check the VIN to verify the model year.

joeybaila New Member

joeybaila

Posted
  • Author
Posted
8 hours ago, chem_man said:

I do not believe GM produced any flex fuel Silverados in 2001.  Double check the VIN to verify the model year.

Yes thats why i have this problem, my truck did not come with flex fuel, but the 5.3 that they transplanted I guess did and now i have the code because my fuel system doesnt have it. 

CamGTP Senior Enthusiast

CamGTP

Posted
Posted

My guess is that the computer is from a 5.3 truck that did have flex fuel, like a 2002 tahoe/Suburban or maybe even a silverado.

 

The engine itself doesn't matter, it's the calibration put into the computer that does matter.

  • Like 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • needafix
      2019+ Brake failure, it's complicated

      By needafix · Posted

      I'm not sure if this should be a new topic, let me know if it's out of place. This my first post. Thanks 85077522 - AC Delco GM Genuine Parts Brake Master Cylinders. Anyone else had to replace this brake master cylinder yet. I didn't do any brake work, it looks like new parts and I've had the truck for about 4k miles, 119k total miles.  When it started to throw codes I did the calibrations with a bidirectional scanner and got the codes to clear but they came back so I did the routine; base bleed, automated bleed and final base bleed. All that with Bosch ES16-32N fluid (please look it up). That seemed to fix it but 100ish miles later it failed again so I ran the same process but with a pressure bleeder this time and got the same results, fixed for 100ish miles. The original fluid looked bad and I thought I got most of it out, it could've been the wrong fluid. The codes; P25A2, C05B0-00, C2A1B. I can get them to clear but not for long. The C05B0 indicates a leak in the front circuit (which is bone dry) so I'm thinking of doing the bleed process on that front again today and I don't know if that's taboo to just do the front but at this point it seems like it's worth the try anyway. The new master cylinder/module unit is supposed to get here today. But now I'm pretty much convinced this install is over my head. I've called several shops and some mobile guys that I know but this thing is like radio active material, scary wise. I did get 2 local shops say they should be able to do it, one says he has the SPS2 programing capability. And with the battery disconnected is there supposed to be pedal resistance, mine is to the floor, then if I pump it I can get some resistance. I had a panic stop prior to this issue which may have contributed from what I read. And on the first attempt to bleed and hydraulic test the scanner listed things to look for and one was any gaps between the pad and rotors which I did notice on the RF corner and I removed the outer pad (where the gap was) cleaned it and the hardware and didn't see a gap after that but will re-check it. I read that if pushing the caliper pistons back then you're supposed to open the bleeder so as to not push fluid backwards into the abs module or it will damage it. If that's true then that's also a possibility from the previous owner having the brakes changed before I got it. I'm using an XTool ip500 scanner. Any suggestions, questions and comments welcome. 
    • Donstar
      Navigating senior years.

      By Donstar · Posted

      Next Friday will be my 6 week point from my right knee replacement.  The surgeon says it will be fine if I choose to drive after this checkup.  I know I could drive now but best to do as my surgeon (and my wife) tell me.  Richard compared being 62 to 72.  I remember when I was in my early 60's I was experiencing slow but regular decline in my mobility.  Thanks to good medical support,  i continued to fight the speed and spread of this decline. During my 60's I worked on non-surgical methods and just when I turned 70, my orthopedic surgeon recommended joint replacements.  In a little over a year, I had one shoulder and both knees replaced.  This hasn't been a terribly fun experience, but worth the discomfort as my future mobility health trajectory has reversed.  It is a treat to now be watching my mobility. balance and confidence steadily improve!
    • Another JR
      Trailer TPS Sensor Question Rim Size

      By Another JR · Posted

      Grommets with the right cement should be perfectly fine. 
    • Grumpy Bear
      Some Assembly is Required

      By Grumpy Bear · Posted

      This is going to take allot of Assembly    
    • PunchT37
      Transmission Temperature Hitting 220s

      By PunchT37 · Posted

      Why do they have the gas 10l80 opening at 145?

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...