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Hey gang - Any input on some weird codes my 99 Suburban is throwing?
I'm getting:
P1441 - Evaporative Emission System Flow during non-purge
P0446 - PCM has determined that a malfunction exists in the electrical circuit for the vent control in the EVAP control system
P0430 - Catalyst system efficiency for bank 2 is below threshold for the current engine operating conditions
Now, I know that 1441 is the one that gets flagged when the gas cap isn't screwed on tight (for one reason, anyway)...
The other two - are they related? Does the vent control affect the catalyst system efficiency?
Is this a common sequence of events for Suburbans? One of those - "Oh - yeah - you need to replace this, this, and that - they all do that..." kind of things?
Or, is this one of those "take it to the dealer" kind of things?
Or can we tell from this data?
What do you think?
My gut is telling me that I need to look for cracked vacum hoses or loose connections in the vent/gas tank area.. What else?
Thanks,
Tim the Technojunkie
I'm getting:
P1441 - Evaporative Emission System Flow during non-purge
P0446 - PCM has determined that a malfunction exists in the electrical circuit for the vent control in the EVAP control system
P0430 - Catalyst system efficiency for bank 2 is below threshold for the current engine operating conditions
Now, I know that 1441 is the one that gets flagged when the gas cap isn't screwed on tight (for one reason, anyway)...
The other two - are they related? Does the vent control affect the catalyst system efficiency?
Is this a common sequence of events for Suburbans? One of those - "Oh - yeah - you need to replace this, this, and that - they all do that..." kind of things?
Or, is this one of those "take it to the dealer" kind of things?
Or can we tell from this data?
What do you think?
My gut is telling me that I need to look for cracked vacum hoses or loose connections in the vent/gas tank area.. What else?
Thanks,
Tim the Technojunkie