Here's a pic of the fuel pump relay on the firewall...
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The arrow is to the bypass connector. Connect this to 12V (fused w/ 1.5 amp) to bypass the relay and see if that fixes the problem. A...

Just an update on where I'm at - currently running with my 15th BIN file:
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I want to get several full tanks of gas through this one so that I can get an overall picture of how...

Oh cool - I'm going to try that, thanks!

Your IAC is maxing-out at ~50 (I see one excursion to 90 at 1002 seconds)
and goes to 0 at idle (975 RPM, at the end of the log). Try resetting it -

Engine warm:
Jump ALDL pins A&B (putting your...

Definitely watching the knock - I am only up to maybe 30-40% premium in the tank. There are more knock counts, but it's only about 40 after a 30 minute log vs. 20 on the lower SA log (I'm expecing...

I have two sets of data that I collected, each running a different SA map. If I go through them and look for equal lines based on TPS and RPM, the only differences between the sets (other than SA) is...

I added a few degrees of SA from 50 - 100 MAP, going from this...
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To this...
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Not a big change, but I'm going slow trying to dial-in the mid-range area. It really felt like it was...

Logged some highway data today to see how Lean Cruise is working and the engine is running really nice.
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I am going to try raising the HiWay Max MAP from 74.69 to 78 in order to accomodate some...

It's a lot better. Just going over the log now and it looks like a steady 550 - 600. Before, it would modulate between 425 and 650 - even higher after hitting the stall saver.

Aw shoot, thanks for reminding me to smooth the adjacent cells, Mark. That made a huge difference in pulling the numbers in...

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I'm really excited to finally get my idle BLM up - this thing...

Okay, made some progress today! First of all, thanks for the head-slap on ASDX, Mark - I switched over to ASDU, but I copied-over the SA table from ASDX since it idled so well. Here's the initial log...

...the ECM Hanger's Club :wtg:

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UPS dropped-off a box of Moates gear just before lunch, so I took that opportunity to swapout the original (or maybe not?) ECM with the ZIF'd one that Moates...

Thanks for the welcomes! I've been reading my a@# off and it looks like I need to adjust my plan, and do all of my fuel and spark tuning *before* I enable lean cruise. I should get my gear next week,...

Roy here, from Portland, OR. I have been datalogging my '89 350 Suburban for several months and just spent some money with Moates, getting ready to do some mpg testing with lean cruise enabled...