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Resetting ecu after BDGT install?

3.8K views 13 replies 8 participants last post by  Dragon21  
#1 ·
I'm getting some pinging after installing the 85 octane tune, I've been running shell 89 octane gas since the truck was new, will resetting the ecu make a differences?
 
#3 ·
While I dont know if my theory is true or not, but perhaps its best to "unmarry" the BD unit from your truck first BEFORE you reset the ECU. I fear that without doing so the next time you replug in th BD it may not recognize the truck like it did before, meaning it'll be locked.

Thats just my theory though, I dont know if that may happen. Hopefully others will chime in.
 
#4 ·
The BD won't care, doing an ECU "reset" is basically just clearing the learned values from the ECU, it doesn't format the ECU, change the part number, version, VIN, etc.
 
#5 ·
Do you mean the 87 octane tune? Regular tune, not Premium. Did you change the timing at all (2-degree-advance, etc)?

I run 89 gas with the Regular (87) tune and +2 timing advance with no problem. Are you positive you didn't download the Premium tune by accident?
 
#8 ·
With what octane gas? Based on my experience, if you run 87 octane gas the Titans are already on the edge of pinging, any timing advance or tune is likely to just push it the rest of the way. Some people have said they run 87 with no pinging. Not saying it's not true, but no truck is exactly like any other. If you get pinging then move up a grade and see if it goes away.

My truck runs like a champ with Regular tune +2 and 89 octane gas, my recipe may not apply to everyone else though.

Experiment and see what works best for your truck. :cheers:
 
#11 ·
Have you tried Shell brand gas yet? Some of the cheaper stations might be watering down their gas. The truck shouldn't ping at all on regular tune with no timing advance. I ran the regular tune with 2* advance and had no pinging even at high ambient temps under load on 89 midgrade Shell gas. However, I did get some pinging running the premium tune on 89.

Perhaps your static timing is off? Have you (or the previous owner) ever messed with the timing chains for any reason?
 
#12 ·
Not going to run 91.
I said the same thing until I got better gas mileage running the 93 octane. Enough to offset the cost of the more expensive gas. It's typically 10 cents more than 89, which would equate to about $2 on a 20 gallon fill up. In that 20 gallons I easily get 60 extra miles at about 16-17 mpg. So even at 15mpg, that would equal 4 gallons better results. So my $2 extra charge at fill up saved me 2.79X4 at the next fill up.

People seem really against putting higher octane in their vehicles because they see a 10 cent or 20 cent difference in price. But they never do the quick math and realize it's not a lot of money when you figure in how much gas you're actually putting in the tank.

Hopefully that makes sense....
 
#14 ·
Good thread. I'm getting ticking at wot running 87 and regular tune with 2*. I'm gonna try 89. My bully dog says my a/f is good. But I trust my engine more.