Codes P0135 and P0155
Codes P0135 and P0155 I'm getting codes P0135 and P0155. I have longtubes, but I thought I planned for everything by getting the bosch rear vette sensors. I've search but there seems to be alot of mixed information. Can I ignore these or am I running rich and washing my cylinder walls?
thanks scott
thanks scott
your car running rich wont result in a high idle....it sounds to me like you have intake/exhaust leak issue...which would cause high idle and a running rich mode....do you have efi live or hptuners accessibility?
Originally Posted by staringback05
your car running rich wont result in a high idle....it sounds to me like you have intake/exhaust leak issue...which would cause high idle and a running rich mode....do you have efi live or hptuners accessibility?
hmm im at a loss unless it is the o2s or a exhaust leak....these are the only reasons i can think of for the richness and idle....do you have any numbers on the fuel trends?....what each bank is runnning?
Trending Topics
My bad, I'm not saying I know I'm running rich. I'm just worried its a possibility because of the malfunctioning or slow O2. Basically I want to know if ignoring these codes can harm my engine.
thanks
thanks
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote well if you cant actually find out how much its running rich, that will give you an idea....usually when the computer finds a problem with the fuel/air ratio itll throw it into a type of safe mode....run about -2% which is slightly rich, if its running in that area it wont hurt your rings or cylinders...i had a nasty leak of unmetered air before the front o2s one time from the egr valve....i was running -14%
ran like total *** but the computer would throw the code and after a while would push it back to -2% or around that area...if you can get it back on the computer and find out what your fuel ratio is running thatll give you a hint of if your really washing those walls down
ran like total *** but the computer would throw the code and after a while would push it back to -2% or around that area...if you can get it back on the computer and find out what your fuel ratio is running thatll give you a hint of if your really washing those walls down 
Mine SES light went on right after my SLP LT's were installed. We cleared the codes, put O2 Simms on and a few months later the SES light came back on. When I had it inspected for emissions it threw those same codes again and failed. We found out my front 02 sensors went and was causing it this time. The car doesnt need to have emissions now and the bad 02 sensors are still on 
. This summer the cats hollowed themselves out 
. At any rate my light has been on now for 2.5 yrs.
. This summer the cats hollowed themselves out . At any rate my light has been on now for 2.5 yrs. 