ok guys i have an 09 1500 and i got a couple of codes after i did a simple filter switch.

i got p0175 and 172 when we checked the codes it said it was running rich. now my truck has only 4,000 miles on it i dont think its the o2s but we never know.
second all the intake and spacer are put on correctly checked twice.
the only thing is that i was -12 and -16 on both trims at idle.

the codes after the re tune have gone away dont know if i should still clean the maf or wait for the codes to come back then clean it. any advice would help.

 

Did you descreen the MAF?

 

my truck is an 09 it comes with out a screen kinda looks like a diesel maf

 

did you disconnect any of the intake tubing when you switched out the filter?

 

yes i did but i checked everything and it all looks good.

 

When it was tuned,was the MAf table scaled?

 

i would think so

it was tuned a while back with my 1st filter the volant power core, which i thought was to restricted then i swapped it out for a k&n brand new at the box no excessive oil and about an hour later it the codes went on.

 

after i got it checked the codes went away then i had it checked by my tuner and re tuned to high octane since there was a misunderstanding the 1st time and truck felt better plus the drive was at least 10 miles and no code appeared.

 

i think what i might do is pick up a mas air flow cleaner clean the sensor and hope the codes stay away for good cause i really like the new filter that i am using now.

 

ok codes have been gone for two days. i just got done cleaning the maf. and when i went to recheck with my tuner found out we were running 87 octane instead of 93 wow what a change in performance.