I read somewhere on here that when you get an exaust or a filter upgrade, you should "reset your computer". Unhook your battery, turn your light swith to the on position, then hook the battery back up. Any trutth in any of this??

Thanks in advance

 

Don't forget arm out the window and foot on the brake.

 

Funny. But seriously, is ther truth in this? Should you reset the computer? I read if you trully reset the computer, when you restart your truck, all the gauges will go all the way to the right, then back.....

 

True.

 

I was reading some of the other threads on here and they said to be careful when adding an intake system. You could lean out your engine's air/fuel ratio and that might not be too good.

 

True?? Which part?

 

Hi - well... both parts.

To reset the PCM, disconnect the battery and then turn on the headlights to drain any residual stored energy in the various capacitors in the supply/electronics (only need to do it for approx 30 secs to a minute in most cases).

The gauge swing upon first start after the reconnect is a normal PCM initialization function.

The reason you disconnect/reset the PCM after modding is to clear out any learned adaptive strategy info - fuel trims, etc. This presumably allows the PCM to relearn from scratch with the mods in place.

In reality - if it's only a drop-in filter or even a catback, it's not really necessary as there is really nothing to correct for.

If it's a FULL intake kit, then perhaps it's prudent, since the changes can be significant (and uncorrectable without tuning changes, but that's another story) - but in this case the REAL reason is to prevent potential damage to the MAF ( which will be disconnected & relocated) - never disconnect engine management components with the DC bus live.

Hope this helps.

 

Very much so. Thank you very much sir. I recently installed a Flowmaster and a drop in K & N filter. So this wouldnt really apply to me...right?

 

You're welcome

You should be good to go - any minor adjustments, if necessary, will take place over the course of normal driving. The PCM is always adjusting.

Cheers
Bubba

 

Thanks!!