johnLs1camaro

iTrader: (28)

ok well i have a 3500 tci,the thing is i have never had the converter tuned for the car,well it seems to always randomly unlock on the highway.. i was wondering if this was because it wasnt tuned yet??

performabuilt

iTrader: (25)

Random misfire can cause the converter to lock and unlock randomly. Sometimes with the reduced weight of the smaller converter the PCM may think they are there even when they are not actually there and cause the converter to lock and unlock randomly.
The converter its self cannot lock and unlock randomly on its own so I would say its a tuning issue

johnLs1camaro

iTrader: (28)

k cool...i dont have any codes or anything,so i was thinking it was a tuning issue just wasnt for sure..

performabuilt

iTrader: (25)

I would certainly look there first and random missfire real or PCM imagined may not set a code

johnLs1camaro

iTrader: (28)

yeah,well the tune is very messed up right now,it has been tuned for a cam,but i have changed a lot to the car since then including,intake manifold,fixed vacuum leak,built tranny, and stall,no exhaust,um idk a bunch of stuff..so its really probably just really wacked out right now..

johnLs1camaro

iTrader: (28)

from what you know is tci a pretty good converter or do they seem to have problems??

99SSragtop

My TCI lock up clutches went bad. I still have to return the T/C to TCI but have not had time.

johnLs1camaro

iTrader: (28)

ic..how much does it cost for them to refresh one,do you know??

lt170chevelle

iTrader: (2)

i have the same problem right now...still working on figuring it out

johnLs1camaro

iTrader: (28)

has your stall been tuned??