Overdrive comes in to soon
Overdrive comes in to soon Just got my car re-tuned. the tune was tweeked slighly and added another 20 HP, so no big changes were made. One change was I went from 26" tall tire to 28. now my car shifts to overdrive at about 40 MPH which is to early in my opinion. if your just easing into it on the interstate not much of a problem, but if your under half throttle acceleration the car really bogs when it goes into overdrive, and if your cruising round 45ish the car lugs like a manual in to high a gear. Above 50 runs fine. All other shifts are great. I had this problem when I switched gear ratio and had it tuned out. I now have HP tuners so I was wondering if I could tune it out. Keep in mind I am new to HP tuners.
find out what wire off pcm is controlling the overdrive and cut it out of pcm and wire to a toggle switch and control it urself hell on pcm a buddy of mine did his and mine and its nice n easy to just hit the toggle on n off at will 
OP - it can easily be tailored to shift where you want it. There are some helpful posts above...
hows that going backwards lets hear it so ur telling me my 02 mazda dd is 30yrs old lol it has push button on shifter to turn od off same principle we did to camaro n alot nicer to cruise in and around town with out the annoying in n out on the overdrive n wen im over 50 i hit it on n boom its there so still wondering how thats 30yrs backwards so explain urself instead of running at the jaws!!!!!
Trending Topics
Why would you go to a toggle switch that you have to constantly turn on and off every time you stop and go, when you can take a few minutes with a laptop to tailor the shift point throughout the throttle range to do it automatically? Do you have to use the button to shift your Mazda into overdrive every time? No... it is there to disable the overdrive in conditions when you don't want it, such as slippery roads or hills... but when you do want it, the computer shifts it at the proper point.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Good god 
OP, the tables will allow you to custom tailor your automatics shifting parameters. Or just drop it in D during lower speed driving where it is posing a problem.
OP, the tables will allow you to custom tailor your automatics shifting parameters. Or just drop it in D during lower speed driving where it is posing a problem.
ha that is backwards since it takes 30 seconds to change the TCC table and 25 seconds to rewrite it in the pcm.and if i dont want my Converter to lock i hit the Tow/haul button/Performance button that was also tailored to my liking Via the TCC tables.
The write up from Coolaid was very good, best article I've read on this subject and I thought I had it figured out. But like I said, I just got the HPTuners and am not that proficient with it yet. I understand what he did but, when I tried to copy my data from the WOT shift speed 100 boxes into the Shift speed vs TPS vs Shift normal 100 boxes the only boxes that changed were the 100. how do you figure out what the others would be (94,87,75, etc). I kinda see that he subtracted the same amount of change to some of the lower boxes, but how do you figure that out? Could I just play with the 3 to 4 shift , because that's the only problem I'm having.
The write up from Coolaid was very good, best article I've read on this subject and I thought I had it figured out. But like I said, I just got the HPTuners and am not that proficient with it yet. I understand what he did but, when I tried to copy my data from the WOT shift speed 100 boxes into the Shift speed vs TPS vs Shift normal 100 boxes the only boxes that changed were the 100. how do you figure out what the others would be (94,87,75, etc). I kinda see that he subtracted the same amount of change to some of the lower boxes, but how do you figure that out? Could I just play with the 3 to 4 shift , because that's the only problem I'm having.
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
[ two solenoids control 4 gears, if you remove control to one solenoid you remove two gears ]
Edited.
Last edited by joecar; Oct 18, 2011 at 07:47 PM.
12 Second Club
Joined: Dec 2008
Posts: 281
Likes: 0
From: A small town, MS
Lol yeah remind me to never let that guy near my car.
