Not shifting into 5th

[timot_one]

You said that your car was shifting into 5th before with KPro, right?  Can you pull all the codes you're getting from your stock ECU?

[stirfriedferret]

If you have ruled out your kpro and transmission fluid level, you should also see if you noticed a big change in fuel economy and if you can check the transmission fluid temperature sensor and see if it's higher than normal.  If that's so, it might be that your torque converter malfunctioning.  It could be that your stator is seized. The other issue could be that your isn't applying the torque converter clutch. Like NVA-AV6 said, our cars rely heavily on sensor inputs. If just one input wasn't being sent to the ecu, it will not enable something to function. (i.e. your torque converter clutch).

[neoryan7]

I havent taken out the excess fluid yet and ill check to see if all the sensors are hooked up, but it was fine a few months before.

yeah there has been a decrease in mileage. 1-2 mpg decrease recently.

[neoryan7]

A little overfull (as you described) would not cause a problem, now with the stock ECU throwing codes and not getting all data because of KPro, now that can cause a issue, tranny shifting in these cars is very dependant on feedback from the TPS and MAP sensors, it sets up the "grade logic" that honda has in there for shifting, if the TPS is disconnected your stock ECU could be reading as you are always at or near WOT and therefor does not shift into 5th and thinks you are climbing a steep hill or trying to accelerate to pass and keeps it in 4th. How are you other gears shifting? At what RPMs?

shifting a  little jerky at cold temps. Not too bad, maybe its just been really cold lately.

But at freeway speed it shifts fine. goes to about 3000rpm and drops to 1700-2000 when it shifts. No flare ups so i dont think its slipping.

yesterday however I think i saw it shift to 5th gear. I just reached 65 after accelerating probably 1/2 throttle and started to cruise. RPM dropped to 2200ish and stayed there. I gave it a little gas probably 5% from cruise position. It downshifted or looked like it did, jumped to about 3500rpm. Didn't look like a slipping tranny because i started to pick up speed. From that point on it was about 500rpm higher at all highway speed compared to stock.

[wtcii]

My transmission is very smooth. I do know that it shifts 5 times. I dont know if it is bad for the car but you could try manually shifting through the gears that count from the last shift. The last one is barely noticeable in my car, it may not even be a gear. I get confused with gears and overdrives and stuff, so who knows. I know our cars have 5 gears then a final drive gear, hence, five shifts.

[CrackerTeg]

I think you're mistaken Bill. The 5th gear is the over drive gear. You'll only feel 4 shifts.

[wtcii]

7th Generation Accord I4 Gear Ratio (MT/AT)

1st - 3.267 | 2.652
2nd - 1.769 | 1.516
3rd - 1.147 | 1.037
4th - 0.872 | 0.738
5th - 0.659 | 0.566

Reverse - 3.583 | 2.000
Final Drive - 4.389 | 4.438

What is the final drive then? I know I see five changes in the RPMs.

[neoryan7]

you should only see 4 shifts. your car is already in first > second > third > fourth > fifth. The final drive is not an actual driving gear. I can't explain what it is however.

I need to pull the codes from the stock ecu. I need to pin up the k line for it.

[CrackerTeg]

The final drive is like a gear multiplier. If you're familiar with Ford and Chevy rear ends, the final drive is very similar to the gearing in the rear differential of those vehicles, hence why you hear of guys swapping for 4:10's, 3:73's, etc. for drag setups. Consider the final drive as the differential from those RWD vehicles pushed up into the transmission to create FWD. That's the best explanation I could come up with.

[Mike]

http://image.automotive.com/f/tech/8509 ... n_gear.jpg

A picture of a final drive from an s2k if that helps

[CrackerTeg]

Thank you Mike!

[neoryan7]

Interesting note I did what one of you suggested and kept it in D3 then shift it to D. That gets it to shift into 5th. I know its 5th because it shifted twice after and my revs returned to normal. 75 @ 2500RPM.

Didn't have time to pull the code because autozone apparently doesn't do this anymore. You have to buy it. Anyone know where I can get access to one other than buying one?

[Icebox]

advance auto will still do this. they have always had better customer service.

[wtcii]

My Honda dealership does it for free. You may want to try that.

[timot_one]

Didn't have time to pull the code because autozone apparently doesn't do this anymore. You have to buy it. Anyone know where I can get access to one other than buying one?

They lied to you.  Auto Zone still does that around here, and I'm sure it's a company wide thing.  Call around to different Auto Zones in your area.  My guess is that the guy you talked to was just a fat lazy pile of shit that didn't want to do his fucking job.