Convertor Locup trouble, please help!!!
Thread Starter
On The Tree
Joined: Apr 2002
Posts: 108
Likes: 0
From: Austin, TX
Convertor Locup trouble, please help!!! Just installed the TCI 4400 and I have edit set to lock it up at 30 in 3rd and 35 in 4th onthe thresh hold settings. I also went in and changed the TPS% table to the same. Here is the problem, it will lock in 3rd sometimes and unlock and then lock again in forth at 35. The main problem is it will lock up at 70 if you hold it at 70 for about 5 min or so then it will unlock a little ways down the road. I have tried going back to the stock program and it does the same. I have a manual lockup switch and it locks the converter but that is the only way to get it to stay locked at high speeds.
TECH Resident
Joined: Nov 2001
Posts: 958
Likes: 0
From: Aurora Il
Re: Convertor Locup trouble, please help!!! Mine started doing that every once in a while, after a fluid change it went away.. I`m thinking th efluid had gotten thin.
Also be careful when doing all the reprogramming, when FLP changed my settings Dan looked at a chart of soome sort to make sure none of the lines were crossed...
Also be careful when doing all the reprogramming, when FLP changed my settings Dan looked at a chart of soome sort to make sure none of the lines were crossed...
Re: Convertor Locup trouble, please help!!! The lock-up through the shift feature in Edit did not work on my car. That probably explains the 3rd at 30 4th at 35 issue.
The highway issue sounds like misfire detection needs to be adjusted. Common problem - search in the computer forum and you'll plenty of posts.
The highway issue sounds like misfire detection needs to be adjusted. Common problem - search in the computer forum and you'll plenty of posts.
Re: Convertor Locup trouble, please help!!! Turning off the misfire code itself will not cure the problem. You have to change the temperature settings of the misfire detection or turn misfire detection off completely.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.