I think I had a driver issue for my cable. I had trouble connecting to the 87 as well. Got it fixed now.

http://www.gearhead-efi.com/Fuel-Injection/images/attach/adx.gif $42-1227747-V5.2.adx (85.7 KB, 524 views)
http://www.gearhead-efi.com/Fuel-Injection/images/attach/xdf.gif $42-1227747-V5.9.3.xdf...

I know I let this thread go dead for a bit but I have switched gears to working on the body of the truck. I picked up a southern cab and am in the process of prepping it for paint. Wont get it done...

Ok, I will check those things. The injector spray looks ok at idle with no dripping however I think I may try to clean them anyway. I will look for it to add more when I open the throttle. I am also...

Ok, here is one of a drive out of town and back with some in town driving. I have the timing back at 0 DEG and I measured my fuel pressure at 10-11 PSI.

One more thing. I currently have the timing set at 8 deg advanced over the spec 0 deg. It seems to run better there. I assume it would be best to set it back a 0 correct?

Ok, will do. I will need to get a fitting for the fuel pressure tho. I was thinking of a permanent gauge anyway.

OK, I closed the throttle plates about 1/3 of a turn on the stop screw to get to the IAC counts I have. I may need to re-bush my throttle shaft at some point because I know the plates are almost to...

It also seems rich at idle. The exhaust is rather strong smelling and makes my eyes water if I idle in the shop for any amount of time. I don't have cats on the truck if that makes a difference. The...

Ok, I drove the beast to work today and idled in the lot for a few minuets before recording this log. I goes into closed loop while I am driving or off idle but goes back open at idle. It also cools...

Ok, I see. Someday I would like to change the chip and be able to see the timing on there but I guess it's not that critical. So I will drive the truck to work tomorrow and log when I get there....

I watched with a tming light and it wasnt really moving that far at all.

I see it here in red. Looks like it climbs up and then drops to zero then climbs back up or am I missunderstanding?

Ok, will do! In the mean time, any thoughts on the ignition timing moving up and down so much in the early part of the log?

I have my cable made and am able to log data! I recorded a luke warm start up in the hopes of catching it hunting for idle and was successful. You can see it in the log. Can anyone point me in the...

Thank you so much!!!!!

Sorry for this dumb question but by using do you mean you are using those file parameters to control your engine or just loading them up into tunerpro for data logging. I really have no clue how this...

The ASDX and ASDU bins are for newer than 87. My truck is an 87 with a 5.7 4 speed manual. Will the ASDX file work for me? Also, there are different versions of adx and xdf files as seen below. Does...

Hello,
New guy here from Wisconsin. I recently picked up an 87 GMC Sierra R3500, 5.7 TBI with an SM465 4 speed. I am getting set up to do some data logging and possible tuning in the future. I do...