feeninpeece
LVC Member
So although this is my first post on this site, I've been using it for much time now to work on my not-so-newly purchased 2002 Non-sport LS. I must say this is my first car, and it is a beast at that. I've been driving it for about 5 months now. I purchased it at 27k miles in pretty shitty condition (but nothing too bad), and its now touching upon 37k. Some of the things I've done to it include a front suspension rebuild (upgraded to the 16mm lca), sst swap, 19” jag wheels, ebay intake lol, cherry bomb muffler exhaust. Can’t think of much else right now. I’ll try to put some photos up. I am finally making my first post to address some things that I cannot solve. First off, top speed. I understand that the different top speeds of the various trim levels of this car are between 130 and 145 i believe? My car doesn’t go more than 119.5 on the clock and 117 tracked by gps. It is an extremely weird sensation, when the car basically is steadily rising in the power band and you can feel that it can obviously continue, but then the car cuts fuel or spark or something and the revs peel back. Does anyone have any idea as to what this could be.Secondly, I’m getting p0420 (bank 1), but i just passed inspection. so i used forscan to check the o2 sensor levels. I found that the bank 1 downstream sensor fluctuated completely between its max and min on idle. for reference, the bank 2 sensor stayed steady for the most part with only slight fluctuations. On a possibly unrelated note, both of the upstream sensors are constantly fluctuating between their complete range. Should it be this way? Shouldn’t the car find a good mix then hold it?Lastly(i think) I tried using the infamous x4 and bricked my ecu. After replacing it and not thinking about it for a while i’ve been attempting to tune again with the help of Torrie from unleashed tuning. Doesn’t talk much huh. After exhausting all efforts with the x4 and various tunes and fuses pulled, nothing would take. The tuner does not even pull the stock file off the car. I’m pretty sure that it got further the first time, but the battery died. Now i’m being sent an x3 device to try this again with. I understand it is more reliable. Hopefully something will come of it.Sorry for the long post but i Think this is it for now. Thank you all for your continued contribution to the support of this car and Happy Holidays