I've got a 3200 stall that won't lock up all the time. Put the tech tool on it and the pcm is not telling it to lock up when this happens. I just got ls1 edit but not sure what to change.

John

 

does it unlock whrn say you are just cruising along? Happens out of no where?

Thats the misfire detection. The PCM is recording a certain number if misfires and it senses somethings wrong so it unlocks the converter. You can get EDIT and set those temps to a different value and fix that.


also cause of converter locking issues is ported MAF ends

 

It doesn't un lock when cruising. It happens when I leave from a stop it goes thru the shifts and it won't lock up. I read somewhere about the misfire affecting the converter but it didn't make any sense to me. The way you put it makes sense. I've got ls1 edit and I had some help with tqm and shift points but I'm just starting to learn and need all the help I can get. It has a cam and throws a soft code sometimes for misfires.So if I can get that cured it will cure the lock up also? I sure appreciate the help.

John

 

John, its worth a shot. Mine did it right before I got the cam. But after the cam It would unlock about every 4mins or driving. Then after 2-3mins it locked back, then 5mins later it would unlock again. Before the cam it was once in a blue moon. Some days fine, other days it did it 10 or so times within 2 hours.

But your definitly getting misfires and the PCM see's that as a issue and it is more than likely the cause of the verter.

Only other thing i can think of is maybe a bad shift noid or something?? Try posting in the drivetrain section so those gurus can help ya more. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

Talked to another guy with the same problem. He changed the misfire temps and that seemed to work so I'm gonna try it. Thanks for the help.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by grey silver:
<strong> Talked to another guy with the same problem. He changed the misfire temps and that seemed to work so I'm gonna try it. Thanks for the help. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">When you received LS1Edit program you should have also gotten the User Guide with it. In it they address your problem. I believe it is on page 40 of the newest version. You can stop the misfire test from running all together by changing the temp, but a better way is to fine tune it so you don't get all the false misfires but will still warn you if there is a real problem.

I set idle, low and med RPM tables to 32000 and it fixed my misfire trouble, and I had it bad with my 3300 high stall converter. I live in the mountains and driving home on the back roads where my car would shift up and down alot, it was not fun to drive, I had to keep it in 3rd to lessen the locking hang ups. It is fixed now, it's like driving a different car now. THANK-YOU Carputing!