Lulled into confidence

[Steve Wood]

so do I and I have seen a change once or twice but nothing that I could call frequent.  It did not affect the entire chip, was only a couple of locations as I recall.

[Steve Wood]

Damn You!!  My car is acting up and acting like it was running out of fuel.  After cussing a lot and getting ready to drop the tank, I noticed Pos #1 was reading 0 instead of 128.  Not sure if that was the problem or not.  Not sure because it seemed to run okay for a few miles and then start cutting out.  then appear to be ok until I drove it a bit again.

Least I plugged the fuel pressure sender back into power so it works again and I am not flying blind on fuel pressure ....

[Steve Wood]

remember my nephew was sitting in the passenger side seat when I first noticed a problem...wond ered if he had kicked the PL cable and moved the board a bit...went out and pulled the ecm out and wiggled the board around....reme mbered your query about PL and remembered that it could cause problems with a flickering ses light at times but I did not have that problem...but maybe it caused a reset?  got me but I guess proof will be in the puddin'

[Steve Wood]

Looks like it may have been that...first time I have seen everything work-correct readings, no flickering check engine or mal code...just a changed cell number...

Drove it 25 miles without a miss...I guess we shall see how it goes

After saying it would not be the PL board, I think I stand corrected!

[Pyro6]

I asked Eric on his site and he seemed certain it was the PL board connection as I suspected when it happened. Funny you should say your nephew was in the front seat cause I  thought it peculiar one of my Buick sidekicks was in the front seat several times that night, I would pick him up at the lanes after each pass. He's a fairly big dude too. Usually Thomas goes to the lanes, makes a pass and goes right back to the pit. The wife and I usually walk, getting our exercise 1/4 mile at a time.  I guess we'll see at Cecil.

[Steve Wood]

It sure did some strange things and then would appear to run properly afterward...st ill don't understand why it basically refused to run at all one day after a few miles...run for a couple of seconds and quit...and then three days later crank up and run like there was no problem...but

musta just been borderline on the connection-live and learn...I hope on both ends of that equation

[Pyro6]

This is the kind of thing I was referring to earlier, it makes it real difficult to be competitive when some of this issues arise out of nowhere. I've been wrenching long enough to know that any vehicle can have issues, but these things seem to be excessive. I've had my '69 442 since 1975 and it only let me sit one time!!!

[Steve Wood]

I would have thought the largest problem would be cutting a good light with a turbo car....this other stuff is more or less racing.  the faster you go, the more problems you have and the more it costs to fix them in my experience.

Go find Paul and ask him to put an XFI system on it and then tune if for you.  Eliminate all this side stuff   Be cheaper than taking a loss on the investment

[Pyro6]

Paul and I have been talking, and if I keep racing this thing, I think it's the only way to go. As far as cutting lights, I learned early on to stage by RPM and don't worry about boost. It seems to keep us consistent and we're usually .020 or less. The night it acted up, the last pass I cut an .008. One thing I like about the car, it launches nice. I loosened the convertor in the off season, Thomas has had a difficult adjusting but doing OK.

[PacecarTA]

the whole powerlogger package in my opionion was done poorly
may have been fine on a bench but in a car that moves or hits bumps or has passengers it has much room for improvement

i never liked the pc cable sticking out into the floor well where any passenger can hit the pc cable with their foot and damage the usb socket,  and the straight plug PC mouse socket aux cable jammed in there and the fact that those types of connections are fragile and non locking  is rediculous when you consider that thats your wideband input and for a wideband controlled car that could be disasterous to loose the aux connection during a pass
  and the pc edge board is on the base of the ecu subjected to movement on bumps ,
i would have like to have seen  the pc and the aux come off the powerlogger board inside the ecm and routed out the top of the case
would have liked to see either the outer edge of the pc encased in plastic with holes to screw it firm  to the base of the ecu  rather than a little square of double stick
when i install them i  scrape all connectionmpad s on the ecu with a razor , position and clearance the  pc cable opening so it isnt going to get stressed ,  screw the ecu to the plastic cover (at the sides) so it cant move around  , drill some holes up the side and secure the aux cable to the cover with zipties so it cant get popped or plulled out while your moving it around and make sure the cover is secured
install the aux block to the back of glove box and drill holes in the back of glove box  for zipties to secure the aux cable and all the wires routed to the  block

gary if i were you i would move the ecu to behind the glove box and make a couple straps (or duct tape ) to keep the pl board secured to the ecu

and on the other subject ..with  boost controlled and rpm controlled launch my car can leave 60s within .006  , and with tbrake im im right on the tree usually 20 and single digit  but  there are the  -001 to -007 red when the pressure is on.

[daveismissing]

I'm with you there. Way too many post of guys "adjusting" their PL and problems go away.
Temping to remove the connector and soldering on the PL, then enclosing the whole thing in metal.
Galvanic isolator module on the USB might not be bad either along with a tank circuit on the powerleads.