How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask sprinkles08 Your Own Question
sprinkles08, ASE Certified Technician
Category: Pontiac
Satisfied Customers: 22817
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
Type Your Pontiac Question Here...
sprinkles08 is online now
A new question is answered every 9 seconds

Emwhere is thatission test reads h vac, sorry emission test

Customer Question

emwhere is thatission test reads h vac
JA: What is the model/year of your Pontiac?
Customer: sorry emission test reads h vac code what is that
JA: Have you scanned the code? Have you tried to reset it?
Customer: yes we reset it and still comes up
JA: What year is your Pontiac?
Customer: 2007 g6 gt 3.5
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: yes and just starting here
JA: Anything else you think the mechanic should know?
Customer: yes its also reading 02 sensor and cat cones
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Pontiac Mechanic about your situation and then connect you two.
Submitted: 1 year ago.
Category: Pontiac
Expert:  Eric replied 1 year ago.


What are the exact fault code numbers that are coming up?

Customer: replied 1 year ago.
dtc1 dtc3
Expert:  Eric replied 1 year ago.


I dont list those as valid codes in any of my manuals for this vehicle. I will opt out and see if someone else has a listing and diagnostics for those codes

Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

I'm quite certain what you saw was a code for the evap system rather than HVAC. The HVAC system isn't part of the powertrain. Depending on what actual code i set an evap system issue could be as simple as a leaking or loose fuel cap, a damaged canister or line, the purge solenoid, tank pressure sensor, etc.

What P codes are setting?