No signal from ALDL (DLC) with engine running.
05-04-2011, 04:16 PM
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No signal from ALDL (DLC) with engine running. I have an 01 Camaro PCM
With the engine off / key on, I can read codes, see all of my sensors in real time.
I can even apply read/write using Winflash.
As soon as I start the engine, I lose connection and I can't get it back until I shut the car off.
The same code scanner works just fine on my Van and my Tahoe. (engine running or not)
I verified that pins 4 and 5 are grounded.
I verified that pin 16 is 12v (12.88 actually, just like the battery)
What am I missing?
Not being able to datalog is making tuning a real pain.
With the engine off / key on, I can read codes, see all of my sensors in real time.
I can even apply read/write using Winflash.
As soon as I start the engine, I lose connection and I can't get it back until I shut the car off.
The same code scanner works just fine on my Van and my Tahoe. (engine running or not)
I verified that pins 4 and 5 are grounded.
I verified that pin 16 is 12v (12.88 actually, just like the battery)
What am I missing?
Not being able to datalog is making tuning a real pain.
