If I wanted to make back to back runs to see the difference between side one and side two of my flip chip, should I disconnect the battery and leave the light switch on for a few minutes before testing each side?

I think I read this somewhere, just want to make sure.

Thanks,

Tim

 

Hey Chickenears,

If you still have your installation instructions that came with your chip, it has the specific detailed step by step process to do this. I know that it said to run 3 runs, but I don't remember exactly the procedure to clear the computer between runs, or even if you had to every time. Sorry, I may not have helped any, but I know it is on/with the instructions I got with my flip chip.

 

https://www.f150online.com/forums/se...der=descending


Tim, Tim,Tim.... lay off the engineering moonshine for a minute and remember the search button is active now...or somethin'.....JR

 

You're right Aggie, I remember reading it now. I'll dig them out and refresh my memory.

Thanks,

Tim

 

OK, OK, OK, you got me! Nailed by the search police or somebody ARGHHHHH!!!!!!

 

If you two fuel curves are different..Then yes yo do have to clear the tables in the computer. IF one side was too rich and the tables are leaning the motor by say 7% and then you switched the program that was say 5% too lean. You motor would be (1.05*1.07=1.12) 12% too lean by not clearing the computer.

Andy

PS I always suggest the same closed loop fuel curves on both sides of your chip.

 

So then does that mean that if you were driving and saw a Vette at a light and decided to flip to your race program, it wouldn't be your TRUE race program but a combo of the 2. Maybe that is why I know of a few people pinging at the track when they race on the strip side and do not disconnect the battery first to clear the PCM.

Am I way off or what??

--Joe

 

Chikenears

This is why I dyno my truck so much.I do not believe in the "seat of your pants dyno".
While dynoing my truck on the J49 program(4 # pulley) for three pulls (381 rwhp 484 rwtq).Called Jim At JDM.Asked him can I flip and retest.He said sure.Take the key out of the ignition when switching.Then just start and shut off the truck 3 times.Which I did.I did NOT disconnect the battery.Let the truck sit for an hour and redynoed at same temp.J69 program (391 rwhp and 490rwtq).Increase of 10 rwhp and 6 rwtq.
Now everybody and there mother says "you have to drive it for a while so the ECU will learn the new program.So I did.A couple trips to the track (12.97) and 500 miles.
I redynoed and low and behold 391 rwhp and 490 rwtq.There goes that theory.
So all I can say with the JDM chip is Flip away.
Hope this helps.

VINNIE

 

Soap

It is not a combination of the two programs. It is the new program running with the correction factors of the other program. The real problem is when one side needs one program is lean compared to the other program. The three starts deal is that there three tables.

The computer always starts with what the average corection of the last few times it ran and slowly adjusts rich or lean as you drive. It only changes the tables if it sees a patern developing. Starting three times will speed the process on fuel curves but will do nothing for the shift patterns that do the same thing.

Resetting the computer by turning on the lights and removing the battery wire sets all three tables to 0 correction. If you tuner missed in the fuel curves or the weather is different than the tuner assumed, only driving will give the truck time to learn.

Hope this helps

Andy

 

If this is true I'm gonna order me a battery disconnect switch from Summit. Beats the heck out of pulling that cable every time.

 

Vinnie,thats the same info I got from Jim.Not that I would ever mod my truck or run a chip since it can void my warranty.......but if I did run a chip,I would switch to the J69 program at the beginning of a saturday night,before prowling the streets.

 

can you switch programs while the engine is running on a 4 way chip?? If so will it be effective??
Just gathering all info I can shopping on that right chip right now. thanks!

 

i asked mike before ordering my flip-chip, and he said, NO, after the initial learning period for your flip-chip, flipping the switch with automatically and immediately switch programs......i asked because i will have a nitrous program on one side and didnt want to drive around with my timing retarded for like 5 days ahead of time. he assured me that you can switch programs at the track and it will have full affect.

 

BullittMcQueen

So were you told that you can just switch it without having to turn the truck off and on 3 times?

awhittle

"Resetting the computer by turning on the lights and removing the battery wire sets all three tables to 0 correction. "

What does turning on the lights have to do with this, or did i miss a joke? Sorry!

 

I've heard disconnecting the battery drains any capacitors or stored energy in the system.. I think that is right.