HHR rejected by emissions station
Moderator
Joined: 01-23-2009
Posts: 26,533
From: Fredericksburg,VA
When the memory gets cleared all of the OBD2 tests have to run, there are a bunch that run under different conditions. Some failed tests inhibit further testing. This is why it is important to know which tests are incomplete; that is called I/M Readiness.
Typically the EVAP testing is run last, it requires that the fuel tank be above 1/2 full and it is driven to full warm up temperature then shutdown for 8 hours. Do not disconnect the battery or clear codes until the emissions test is done. Fuse #29 MUST be good in order to read the OBD2 port the emissions testing is done by reading the OBD2 port.
The important thing to find out is "I/M Readiness". Then you will know what has to be done before going for inspection.
The instructions on the receipt are generic and some of them don't apply to your car at all.
Typically the EVAP testing is run last, it requires that the fuel tank be above 1/2 full and it is driven to full warm up temperature then shutdown for 8 hours. Do not disconnect the battery or clear codes until the emissions test is done. Fuse #29 MUST be good in order to read the OBD2 port the emissions testing is done by reading the OBD2 port.
The important thing to find out is "I/M Readiness". Then you will know what has to be done before going for inspection.
The instructions on the receipt are generic and some of them don't apply to your car at all.
Thread Starter
Member
Joined: 02-10-2022
Posts: 58
From: College Park
When the memory gets cleared all of the OBD2 tests have to run, there are a bunch that run under different conditions. Some failed tests inhibit further testing. This is why it is important to know which tests are incomplete; that is called I/M Readiness.
Typically the EVAP testing is run last, it requires that the fuel tank be above 1/2 full and it is driven to full warm up temperature then shutdown for 8 hours. Do not disconnect the battery or clear codes until the emissions test is done. Fuse #29 MUST be good in order to read the OBD2 port the emissions testing is done by reading the OBD2 port.
The important thing to find out is "I/M Readiness". Then you will know what has to be done before going for inspection.
The instructions on the receipt are generic and some of them don't apply to your car at all.
Typically the EVAP testing is run last, it requires that the fuel tank be above 1/2 full and it is driven to full warm up temperature then shutdown for 8 hours. Do not disconnect the battery or clear codes until the emissions test is done. Fuse #29 MUST be good in order to read the OBD2 port the emissions testing is done by reading the OBD2 port.
The important thing to find out is "I/M Readiness". Then you will know what has to be done before going for inspection.
The instructions on the receipt are generic and some of them don't apply to your car at all.
Thread Starter
Member
Joined: 02-10-2022
Posts: 58
From: College Park
I talked to the mechanic that told me to come back today and he said if there's no light on in the dash, there's no use testing it. A couple people asked me if there was a light on in the dash. The mechanic just said drive it for a week and get it tested again. They gave me my money back at the testing station the first time when it wasn't ready.
Moderator
Joined: 01-23-2009
Posts: 26,533
From: Fredericksburg,VA
True, if the light is functioning and it is not lit there will be no current codes. But, you can still find out I/M readiness.
If a test is not run it can't throw a fail code. I/M readiness tells which tests have not run.
Why can't you go to one of the retail parts stores I listed for you? They have the same reader a mechanic has.
Or, you can just go back for testing as they said and hope it passes.
6 pages is enough. Pick one and do it.
If a test is not run it can't throw a fail code. I/M readiness tells which tests have not run.
Why can't you go to one of the retail parts stores I listed for you? They have the same reader a mechanic has.
Or, you can just go back for testing as they said and hope it passes.
6 pages is enough. Pick one and do it.
Thread Starter
Member
Joined: 02-10-2022
Posts: 58
From: College Park
I went to Rising Sun Motors today and they said it would cost $240 for diognostic tests. After that I went to Advance Auto in Greenbelt and someone who seemed to know what he was doing tested my HHR and said data was downloading so it must be working. Two flashing icons showed up and he said they had to do with the O2 sensor and EVAP system. He said nothing about I/M readiness. I'll get the car tested again Friday. That will be about a week total driving.
Senior Member
Joined: 02-01-2006
Posts: 1,471
From: lockport,ny
I went to Rising Sun Motors today and they said it would cost $240 for diognostic tests. After that I went to Advance Auto in Greenbelt and someone who seemed to know what he was doing tested my HHR and said data was downloading so it must be working. Two flashing icons showed up and he said they had to do with the O2 sensor and EVAP system. He said nothing about I/M readiness. I'll get the car tested again Friday. That will be about a week total driving.
Having two flashing Icons and him saying "it has something to do with O2 and EVAP system" is useless info to a customer. If he actually knew what the reader was indicating he should have said there were no codes and two I/M monitors were not ready yet, meaning you have to drive it some more. No rocket science needed here for a guy they trust to read a customer's OBD II status and advise them.
Thank God I do my own work and don't have to deal with this kind of stuff.
Steve