PL won't connect when car running
- Thread starter tta1401
- Start date
Pulled ecm and pl and tested it with another car and works fine. Any electronic gurus out there know anything about the two power sources to the ecm, more precisely the pnk/blk wire from the fuse block? I know a lot of things are on that circuit. Btw, the scanmaster reads the pl just fine while running.
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- Joined
- Feb 18, 2006
Bizarre 
Whats your running volts?
What ignition module? Ac Delco?
Double check the leads where the powerlogger goes on the ecm. Make sure all the coating is removed. A small wire toothbrush works great.
Rick
Whats your running volts?
What ignition module? Ac Delco?
Double check the leads where the powerlogger goes on the ecm. Make sure all the coating is removed. A small wire toothbrush works great.
Rick
14+/-.5 volts. Stays pretty consistent. New delco unit. Tested with other known good ones. Connector is clean. Same laptop, ecm, pl runs fine another car. Bob Bailey is stumped as well. I posted on here just to see if anyone Hasan "aha" moment because I sure as heck haven't!
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Ok, bypassed the connector by running a hotwire to A6 in the ecm harness. Basically, I isolated the ecm harness. No change. It has to be something in the harness or faulty sensor. All voltages checked out to be normal from the ecm pins. I'm stumped...
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- Joined
- Feb 18, 2006
I was thinking more along the lines of old plug wires or a bad alternator. Something that might make noise in the electronics when the car is running.
Take the belt off and start it up. See if it connects with no alternator power. Just long enough to see if the pl stays connected then shut it down.
Rick
Take the belt off and start it up. See if it connects with no alternator power. Just long enough to see if the pl stays connected then shut it down.
Rick
I did try to ground it but it didn't work.
Just like we talked about, no reason to bandaid my problem when many others are running fine with it. Heck, my ecm and pl runs fine in my brother's car. Actually, both pl's I have run fine in his car. But, I do like that you're willing to help out!
That's next on the list, lol! It wouldn't make sense if it runs fine w/o the pl but I'm down to try anything. Btw, running on battery only didn't work.
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David
- Joined
- Jan 31, 2006
on my windows 8 laptop
1-turn on the laptop
2-open the PL console
3- turn on the car
4- plug the cable to the laptop
5- sometimes i still have to hit the "connect" tab a few times as i get the same damn error code
if i connect the pl to the laptop any other way the pl software either stops responding or crashes my computer.
1-turn on the laptop
2-open the PL console
3- turn on the car
4- plug the cable to the laptop
5- sometimes i still have to hit the "connect" tab a few times as i get the same damn error code
if i connect the pl to the laptop any other way the pl software either stops responding or crashes my computer.
TurboTdr3.8
Well-Known Member
- Joined
- Jan 15, 2013
I noticed on my computer you only hit connect once and wait because its takes a few seconds like 35 to 40 seconds to connect , I noticed if you hit it a couples times thinking it did not connect but it trys to open several windows instead .
davelostmissing
Senile Member
- Joined
- Jul 15, 2004
Are you using the aux block? unplug?
Well, got the PL to stay connected after installing the tr6 but it backfires through the intake when trying to drive it. I'm pulling the motor and trans this winter and going to go through the harness. Got a baby on the way so it might be a while before I figure it out but I'll be sure to keep you posted!
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