blackjack325

iTrader: (1)

I recently had my converter swapped. I got the 2800-3200 TB I6 converter from Circle D. I also had the aftermarket header gaskets replaced with the original steel gaskets. I had a leak with the aftermarket header gaskets and now that its nice and sealed i notice that i get timing knock at high rpm. Need to retune.

I did a few pulls from 0 and others from 30 mph. I noticed that going from 0mph, the ABS light came on. I did another from 0 and the Check Eng light came on. I disconnected the batt and put it back on and closed the exhaust cut out. I did several runs from 0 mph and the ABS light comes back on but no Check Eng. When i open the cut out, the Check Eng comes on when i do a run from 0 mph and the ABS also comes on.

ABS light does turn off after i turn the truck off but the Check Eng stays on. What could this be???

Oh, sorry for the long story. Thanks in advance for your help.

iamkeniff

iTrader: (16)

do you have rear o2 sensors? if not is your computer tuned for no rear o2s? that could throw your SES light. as for the ABS light im really unsure about that sorry i cant help.

blackjack325

iTrader: (1)

i dont have rear 02 sensors, it is tuned for no rear 02's.

viciousknid

iTrader: (8)

it's not the sensors. Do a search for ABS in Tuning and Diagnostics and there is a few threads on this issue.

Here is one that should help.
https://www.performancetrucks.net/fo...&highlight=abs

blackjack325

iTrader: (1)

thanx for the info. The thing is, that the ABS light comes on only when i floor it. I turn the truck off and back on and the light goes off. I drive it around normally and no lights come on at all. And the check eng light comes on sometimes after a solid run after the ABS light comes on. The check eng light wont come off unless i disconnect and reconnect the battery.

Wonderer876

How much tq managment did you take out of it?

blackjack325

iTrader: (1)

my guess is, my tuner took all of it off. But even with no tq management, my truck wouldnt do a burn out or smoke the tires the way it does now with the tq converter. when i wouldnt launch from 0mph without the converter, it would kinda squeel the tires, with the 3000 converter, it tears em up.

tallChevy

iTrader: (14)

does the abs come on only when you are spinning the tires.

z71xl

I just put the same converter in my truck just a few hours ago and mine after a hard launch from a dead stop set the abs light also? Put the scanner on it and i cant remember the code # but it was something about steering!? I just cleared it...I'll give it another good running tomorrow and see if it comes back up

blackjack325

iTrader: (1)

yeah, my ABS light comes on after a hard launch/tire spin (hard launch causes wheel spin) but then my Check Eng light comes on hey Z71xl does your check eng light come on too or just the ABS???