Pretty confused

**chris99gtp** · 09-03-2012

hey guys im a little confused.. i used to be getting the p0420 code and i reset the code twice and since then (about 2 weeks) it hasn't gone on again. today after i drove my it i decided hey lets put my obd II scanner on and see if anything comes up. I end up getting the p0171 code. Are these two related in any way? ik the p0171 may have something to do with the up stream o2 sensor could that be the problem? and why hasn't the p0420 code gone on?

Thanks
Chris

**dsmuts** · 09-03-2012

P0171 is most likely a vacuum leak

**BillBoost37** · 09-04-2012

Search on P0171.. they have nothing to do with each other.

And.. 171 isn't a bad o2.

**chris99gtp** · 09-04-2012

Okay I thought when I.looked it up it said that but I coulda looked at something else or idk... Where should I start and any ideas of why the ses light hasn't gone.on tho for this New code

**BillBoost37** · 09-04-2012

Originally Posted by BillBoost37

Search on P0171.. .

I'd start here. If you added my screen name to your search..you'd have a lot of things to check into very quickly.

The way I see it is ..if you have a problem and you can post on something that is this well documented, you can search.

**chris99gtp** · 09-04-2012

i searched a little but didn't really see anything.. ill keep looking.. also any ideas on why the p0420 code went away? i had a new trans put in before and after that was put in it threw that code but that couldn't have messed it up or anything right?

**BillBoost37** · 09-05-2012

Originally Posted by chris99gtp

i searched a little but didn't really see anything..

Honestly?? you searched here, "P0171" and "BillBoost37"? Just tried..

is going on here? it's giving me no results. Hang tight man. I'm giving Nick a hard time and getting him on the case.

Meanwhile check
Vacuum leaks
Battery cable connections (pull and visually look at them)
And clean your maf sensor.

**chris99gtp** · 09-05-2012

Sorry man I typed in bill boost not billboost... So I was just getting a thread on how Ur a beast.. sorry about that and okay thanks for pointing me in.the right direction