Hi guys, I finally got my $8 radio shack special ALDL cable working. This is on the 1969 327 tpi retrofit. It looks like Tunerpro does not support ALDL with the 32b mask on the 165 ecu (no big deal, when I get my programmer next week I am going to be burning chips with the 6E mask, which will allow 8192 baud ALDL with tunerpro). I had to use WinALDL at 160 baud because of the 32b mask. I didn't get to drive the car at all because we have 1 foot of fresh snow here in PA, but I let the car warm up into closed loop. At idle, the BLM's are maxing out at 160. If I blip the throttle, they are between 113 and 127 1800-4500 rpms. The max BLM is capped at 160 in the bin file. I'll have to verify this isn't an exhaust leak, as the idle smells very rich, like it always did with a carb. Is it possible that an exhaust leak would only effect the BLMs at such a specific value? My cam is a flat tappet hydraulic with a lot of overlap, so is it possible that the very lean BLM idling is falsely triggered only while the car is loping at idle? The idle is around 1100 rpms (it still lopes very noticeably at this speed still) because I could only get data to show up with the 10k resistor across A and B on the data port. Hopefully I won't need this resistor when I am running the 6E mask at the much higher 8192 baud. By the way, I kept getting a couple flags popping up, even if I unchecked them -- I got a 34 Low maf code, the 36 maf burnoff diagnostic code, and a 42 EST monitor. I do not have the check engine light on while scanning, and if I disconnect the computer and take out the 10k resistor and restart the car in normal mode, it does not have a check engine light either. I will occasionally get the 36 Maf burnoff code if I shut down and restart only a few seconds later, but it will clear itself on the next start, and I usually do not get this code.

Here are a couple screen shots -- one of the avg. blms (over only 25 seconds of running, with a couple revs), one of the maximum sensor values, and one of a very short log file (25 seconds long, idling, in closed loop but not fully hot yet). I clipped a few columns from the log file so it would be narrow enough to fit the screen.

I know this data isn't worth very much, as it's just values taken during a short period of idling, with a few revs that barely got recorded at 160 baud. It took several hours in 10 degree weather to get the ALDL working, and I had the car in the garage with the door up, so I really didn't feel like running it forever. However, I'd appreciate any input anyone has. It's going to be at least several days before the roads are clear enough to take the car out and rip through the gears while datalogging.