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Discussion Starter #1
I know with some cars after you make engine modifications it is good to reset the cars computer for it to re-adjust to the modifications made. I know with Nissans you disconnect the battery and depress the brake for about a minute (so the brake lights drain the all current out of the cars electrical system). Does anyone know if this should be done on the Supras? And if so how? Thanks!
 

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Pull the STOP fuse in the fuesbox under the hood for 30 seconds or more, just leave it a few minutes to be sure.
 

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is there an advantage or disadvantage to doin this?

charlie
 

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Discussion Starter #4
I have heard that the reason for doing this is to have your computer recalibrate itself after you have done engine modifications. It is so the car can compenstate for the modifications made... so suppositly their is an advantage to doing this, anyone know for sure though?
 

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It all depends on what modifications have been done to your vehicle. If it's stock, there's really no reason for it. However, if you have things like a header or other modifications, or perhaps you've had a code stored in the computer, you'll find that by resetting the computer once in a while, your car will have a chance to relearn all settings and possibly gain better gas mileage and/or more power.
If you do reset it, you'll notice the vehicle will run differently for about 50 miles while it remaps air/fuel mixtures based on all new information from your sensors (O2 sensor, afm air pressure sensor, air temp sensor, etc).
Just don't do what I did! I reset my computer on my truck one day when it was cool and rainy out. I took it around the block and parked it for several days. When I went to drive it again, it was really hot and dry and the truck wouldn't idle at all. I spent about an hour pulling plugs, checking the tps, but nothing helped. After all this, I realized what happened and reset the computer, it ran just fine after that! Bottom line is, drive it for at least 10 or 15 minutes before you park it for a day or two once you reset your computer!!!

Sorry, got a little long winded!
 
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