Quote:
Originally Posted by Pat Cook
Art, this is probably a dumb question, but does it still have the lock up disc in the torque converter?
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No lockup in converter. And I changed the converter That was my first suspect.
The car ran fine in the past. So I don't want to get way off base with adjustments.
I've tried to raise/lower fuel pressure, raise/lower fuel injector flow, raise/lower ignition timing. All with no improvements.
Right now I'm chasing the possibility that my LS1 coils could have been installed with reverse polarity. And when I activated the 2 step function in the ECU I might have damaged them. If they are not the problem the only thing I have left is to change the crank and cam pickups.
I've leaked down checked the motor looked at the top end for cam wear etc. Gone through the fuel system. Checked timing to see if the timing belt jumped a tooth (could not have because it would have bent valves) Checked the plug wires, changed all the plugs etc.
I hope I'm barking up the right tree with the coils.
One thing that seems to improve it a little is putting a muffler on the collector. I'm hoping that putting some back pressure on it. Allows a weaker spark to burn more mixture in the chamber and make a bit more power.