04 GTO sluggish! need help! Asap!
hey guys i recently just bough an 04 goat with around 22,800 miles and its driving like crap now. i havent had time to take it anywhere, or the place that i bough it at. but when u turn it on the engine with drop to almost 400 rpm then shot up to 900 then drop to 500 untill it finally settles at 900... and when ur driving it and u give it some gas it just bogs down... like when u turn a Lawnmower on and put it on the choke. i took it to autozone to check the ecu and it said that the O2 censors have low voltage and the system is too lean. now the guy who owned it before deff had a charger in it and im thinking that the ecu is programed for the charger and the air/fuel ratio is messed up. and that would explain why im getting 9mpg. another thing that i just noticed was that when u turn the car on it welcomes u with the holden logo not the pontiac... and ohh the check engine light is too.
thanks guys i really dont know wat to do and really hope its an easy fix and that i can enjoy my new baby soon... a friend of mine said its on "limp" mode w/e that mean but idk.