I ordered a mail order tune through Bryan at PCMFORLESS. First tune I got, was great. We started doing minor changes to the file, (fueling). No problems.

When everything started going bad:

Car started doing something really wierd. The o2 millivolts would drop really low on one side, and stay about right on the other. I tried a new o2, nothing. I swapped o2's from side to side, and the problem followed the sensor. I put two new sensors in the car, and problem still occured. I looked for exhaust leaks everywhere, none were present. I decided to put the car into open loop until the problem was solved. After driving the car for a few months tuned in open loop, I plugged my scanner yesterday, and the problem has seemed to fix itself. Now when I go ahead and upload the file Bryan sent me, the o2 millivolt split comes back. OBVIOUSLY its something in the tune. I have called Bryan several times, and E-mailed him as well, and I get the same BS response : I dont know without having the car in front of me. (In a rushed attitude, forcing me to end the call). I understand your busy, but that is no way to treat your customers.

I understand that statement if it were a Mechanical problem, but its not. He gives me no advice whatso ever, although its the tune that is causing this. I called Ion (Madz28) and he spent like 20 minuted talking to me about advice, and what to look for in the file, without dropping a dime with him.

Bryan, your customer service needs a lot of work, in my opinion. Be careful and chose wisely potential friends who need a tune..

 

I understand your upset you cannot find the problem with your car but I'll assure you and I'm sure Ion will also that a split BLM problem is not a tune problem. You can do things in a tune to get rid of some split blm problems that come about due to cam overlap but you cannot control if a O2 sensor reads or not. You said earlier in your post that you swapped the o2 from one side to the other and the problem followed the sensor.

 

No offense but that's one of the dumbest things I've heard on here in a while.

And as Alvin mentioned,

That tells you right there it is not a tuning issue.

 

How many forums are you going to put this on? Seems like your goal is not to get help with solving your problem, but to trash pcmforless.

Closing this one too.