On my 03 blazer I'm using a Fixed obd sensor and it keeps telling a I have a problem with my evep system, but I'm not getting and codes and there is no check engine light on. So I'm just wondering if anyone else has had this problem and will my blazer pass smog in CA?

 

Have no idea what a fixed OBD sensor is. Is the EVAP part of the emission readiness monitor not completed yet?

 

It's just.A little scan tool that you can bluetooth through your phone and then feed you information about your Vehicle. I'm guessing that's what It means , but i'm not sure i've run my drive cycle like 4 times And?It always comes back with the same message, Vehicle will not pass smog event system. No codes no check engine light. I think I'll just take it to get smogged and see if it passes or not, I've replace charcoal canister, vent valve, purge valve so I don't know.

 

Evap in the drive cycle is very difficult to get completed. A lot of states allow one readiness monitor to not be completed as long as no SES light or codes. I'm not 100% sure about CA, but I found this below that speaks about "if too many readiness monitors are incomplete" (implying that at least one not completed is permissible). Whatever you do, don't clear codes as this resets all the readiness monitors to incomplete status.

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In California, technicians are required to perform an OBD II check (visual and functional) during the Smog Check inspection. Specifically, the technician visually checks to make sure the warning light is functional, and then the Smog Check test equipment communicates with the on-board computer for fault information. If a fault is currently causing the light to be on, you need to have the malfunctioning component repaired before you can pass the inspection.

Additionally, the vehicle stores information known as "readiness indicators" to indicate if the vehicle is ready for an inspection. If too many readiness indicators are incomplete, the vehicle will fail the inspection because it means that the vehicle has not been operated enough since the on-board memory was last cleared to allow all of the OBD system checks to complete. This can occur if a fault has recently been repaired, or if you have recently had a dead, disconnected, or replaced battery. It does not necessarily mean that anything is wrong with your car - it simply means that the vehicle hasn't had a chance to run all of its self-diagnostics to confirm that everything is okay. The vehicle will need to be driven more before the vehicle can be tested to pass. Vehicle owners who fail Smog Check due to incomplete readiness indicators should drive their vehicle as they normally do for about a week or so to set these readiness indicators to "complete." If the incomplete readiness indicators were most likely not a result of a recently disconnected/replaced vehicle battery, or if the vehicle is not driven regularly, the vehicle owner may wish to seek repair technician help in setting readiness. The technician can access technical information from the vehicle manufacturer and should be able to advise the owner of specific driving patterns needed to set the indicators, or may be able to operate the vehicle (most likely on a dynamometer in the shop) to set the monitors. The technician will have access to a scan tool to determine which monitors have not completed.

 

Thank so much I really appreciate the help. Hopefully I can get this thing to pas and get back to driving l Legally l o l, but I really so appreciate your help and taking the time to look that up. Your awesome.