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A different way to reset computer?

jaslo

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jaslo Enthusiast

jaslo

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Is there a different way to reset the computer than unplugging the battery every time. I have a wait4me tune and I am going to try different octane gas and need to reset the computer. Is there a different way to reset the computer than disconnecting the battery?

Bish Senior Enthusiast

Bish

Posted
Posted
Is there a different way to reset the computer than unplugging the battery every time. I have a wait4me tune and I am going to try different octane gas and need to reset the computer. Is there a different way to reset the computer than disconnecting the battery?

 

 

 

 

You can pull the ECM fuses instead. If I recall, I put the key to run and pulled ECM0 and ECM1 fuses and replaced and it resets immediately. I'll try to look at my fuses tonight to see if I remember the exact ones.

redvett Senior Enthusiast

redvett

Posted
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Since the PCM is constantly learning your driving habits just change your octane and keep driving and it will adjust. Resetting your PCM isnt necessary in fact it takes at least 150 mi to relearn completely.

jaslo Enthusiast

jaslo

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Well, I took off my K&N system, put the stock one back one and reset the computer and now my truck is getting worse gas mileage than with the K&N, and this is after 1,000 miles, do you think the pcm is still learning or should I reset the computer so it can just start over, especially since I am going to use a higher octane. Or maybe I should put the K&N back on there?

Bish Senior Enthusiast

Bish

Posted
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Pulling the fuses isnt the best thing to do with the ign. on since you can give the PCM a surge and ruin it.

 

 

 

 

I agree with you in theory. However, I got the procedure off another board and have done t at least 10 times over the life of the vehicle with no problems.....yet. I typically reset it every time I do any type of performance mod.

 

To jaslo, that doesn't surprise me. I got better mileage after installing my K&N so it would make sense to me that your mileage could go down going back to stock. 1000 miles is plenty to relearn.

redvett Senior Enthusiast

redvett

Posted
Posted
Pulling the fuses isnt the best thing to do with the ign. on since you can give the PCM a surge and ruin it.

 

 

 

 

 

I agree with you in theory. However, I got the procedure off another board and have done t at least 10 times over the life of the vehicle with no problems.....yet. I typically reset it every time I do any type of performance mod.

 

You are just lucky than. I have seen situations where a surge such as leaving the Ign. on and jump starting a vehicle has fried a PCM. No different than your home PC or other electronics.

jaslo Enthusiast

jaslo

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Maybe I will have to put the K&N back on the truck if it does help it that much. Maybe I should do a poll of who have had a increase when putting a K&N system on their truck versus the stock intake. I have just read numerous forums on here and a lot of people say the K&N doesnt help mpg, just makes added noise. I recently took mine off just to see if I could get better mpg, since I do have a wait4me tune, I wanted to see what kind of mileage I could get.

redvett Senior Enthusiast

redvett

Posted
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My 04 with a Jesse's tune and the rest stock gets 20.3 on a trip weekley to my business and 18 city. Dont need no special air intake to get good mileage just e-z on the gas & brakes.

jaslo Enthusiast

jaslo

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My 04 with a Jesse's tune and the rest stock gets 20.3 on a trip weekley to my business and 18 city.  Dont need no special air intake to get good mileage just e-z on the gas & brakes.

 

 

 

 

Are you using 87 octane or higher?

jaslo Enthusiast

jaslo

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Well I feel lucky to get my 18 mpg, but latelly since my gas mileage is going down, wondering if I should change the spark plugs, truck has about 85,000 miles on it.

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