1228747 to 1227477 swap.

[1leg]

Ok got the Suburban running today on the first chip i tried.
Ran ok
Idle needs work
Power seemed a little down(hard to tell really)
no TCC lock-up
No kickdown
Temp still reading high

1990-V3-1leg bin
$42-1227747-1leg.xdf
Below are a couple of logs, 1st log has a few miles of me driving around the block. the second log is just idling in the driveway after i drove it around. It seemed to have a little bit of a rattle when idling so i did a log. when i say rattle i don't mean engine knocking just not running smooth. weird didn't do that before.

I have a few question but i will let you guys look at the logs first. when you get the time.

Thanks guys for all the help!!! I still have a lot to learn but i'm still having fun.

[1leg]

EagleMark, Could you tell us what you did to disable the TCC in the 7747 bin you gave me.

[EagleMark]

I did earlier...

I also zipped the $42-1227747-V4.xdf with I think 3-4 changes (like above for turbo 350) to disable TCC, turn off Code 24 VSS, and 2 other bit changes for manual trans. They are all marked in XDF with **OFF** or **SET TO MANUAL** at the end of paremeter name so you can see what I did.

Now like I said I don't know what your doing for the turbo 400 kickdown? If your using the TCC signal it is off!

If I can find time later I'll watch your logs and see if I can find anything. I actually find it relaxing to watch logs and play with monitors to look for stuff... yeah I know I'm weird...

[gregs78cam]

One thing strange I noticed about two of the .bins that I got last week, was that the bit for "TCC Only" was checked - in manual .bins.

[EagleMark]

One thing strange I noticed about two of the .bins that I got last week, was that the bit for "TCC Only" was checked - in manual .bins.

Maybe Manual selected turns off TCC?

[EagleMark]

Ok got the Suburban running today on the first chip i tried.
Ran ok
Idle needs work
Power seemed a little down(hard to tell really)
no TCC lock-up
No kickdown
Temp still reading high

1990-V3-1leg bin
$42-1227747-1leg.xdf
Below are a couple of logs, 1st log has a few miles of me driving around the block. the second log is just idling in the driveway after i drove it around. It seemed to have a little bit of a rattle when idling so i did a log. when i say rattle i don't mean engine knocking just not running smooth. weird didn't do that before.

I have a few question but i will let you guys look at the logs first. when you get the time.

Thanks guys for all the help!!! I still have a lot to learn but i'm still having fun.

You do have some sort of cololing issue. It goes up to 230f when warming up then goes down when cruise spped, then back up to 225 at stop, then back down at cruise, 212 at 50. So may be a plugged radiator? Sticky or inaccurate T stat, water pump impeller? I don't know but it's warm.

Was that the bin I sent? If so something is wrong, I know you have a cam, right? But still idle was 800 when warming up and never changed all the way to 230F and you were still in open loop till 14.13 minutes in log? So that may be why, idle in closed loop on bin is lower, but mines goes closed loop way early during warm up, could be the rich just keeping o2 sensor to cool? Soon as you started driving it finally went closed loop. Then watching idle in gear it was rich, like 114 BLM.

Idle in first log 800 RPM is not what was in that bin and your IAC was 32 and never moved. See above...

Idle in drive at 21.12 was 550 RPM 38 IAC RICH at 52 kpa map 11.61 vacuum. Mine is 550 drive, idle 16 vacuum. So that's showing cam and yes you'd need to tune that to get rich BLM idle under control.

Second log, Idle log shows closer to closed loop idle RPM and lower IAC and in closed loop! But BLM is RICH at 115. Vacuum at 16 because of cam would be reason so tune is in order, my stock cam at idle in park is 18+ vacuum. Then from running so rich it must have cooled off O2 sensor and went open loop again.

Never a knock, but that rich I wouldn't expect one. Overall your entire BLM history table, taken when closed loop only, was all rich except fot 90-100 kps which was just about right at 130, if went WOT there it would add PE and probably be good.

Only thing I noticed off was TPS voltage at idle at .74 and should be .54 so an adjustment is in order but don't think that is causing any issues.

History average BLM just a cut and paste below not accurate to table but gives an idea. Open history BLM and run log. Wait till 14.13 when it goes closed loop and clear history table, then use that data at end of log to adjust VE. If these were all 128 you'd be spot on!

113.231 111
110.125 113.939 114.660 121 125.500 128 126
111.727 110.135 113.333 108 126.529 126.143
116 110.600 117.500 108.111 116 116.167 127.118 129.105
123.700 115.500 111 113.083 112.462 118.300 124.952 131.743 130
126 126 110.941 113.267 120 127.737 131.313
118 128.300 128
130.750 127.250


History STD Deviation from 128 shows how far to adjust those cells if they were all 0s you'd be spot on!. Some only have one count so I would exclude them. Some here off by 4 and up to 13 % to rich.
4.711 0
4.016 1.961 5.903 9.899 5.952 0 0
4.429 4.289 9.238 0 5.558 3.436
6.624 4.248 13.435 0.333 9.187 5.408 6.596 4.653
5.187 10.607 7.506 5.838 5.222 1.947 5.679 2.214 0
0 0 5.214 3.555 4.472 5.606 2.243
0 1.947 0
3.202 1.500

HTH!

[1leg]

Thanks for taking look, I don't plan on adjusting anything on the tune until I get the temp to read right. I'm positive this truck is not running this hot, and I will have a mech-temp right next to the CTS soon to confirm. I think it might be the sensor wire, I will replace it after I confirm the temp is reading wrong. It runs and that's important. I will get the tps and iac all reset,

[EagleMark]

Yeah somethings not right with temp as you have comfirmed it on 2 differant ECMs. First ECM we know now was faulty.

Here's the procedure for intial setup, not normally needed on stock motor unless TBI has been rebuilt or cammed engine or conversion to other engine.
http://www.gearhead-efi.com/Fuel-Inj...-Fuel-Pressure

So what did you do for turbo 400 kickdown? I thought you said it was working but the bin I sent was TCC totally disabled...

[1leg]

Yeah somethings not right with temp as you have comfirmed it on 2 differant ECMs. First ECM we know now was faulty.

Here's the procedure for intial setup, not normally needed on stock motor unless TBI has been rebuilt or cammed engine or conversion to other engine.
http://www.gearhead-efi.com/Fuel-Inj...-Fuel-Pressure

So what did you do for turbo 400 kickdown? I thought you said it was working but the bin I sent was TCC totally disabled...

I don't have kickdown at the moment, which is fine now. After i get the temp reading correct and the IAC,TPS and fuel pressure all set i will then start on the tune. I will be moving soon. Hopefully we will find a good place with a garage and RV parking. I hope to have all this corrected this weekend and start logging everyday so can start loading excel with data.

Questions:
What Fuel table do i edit on this bin? It shows 3: VE % (FL1) corrected, VE% (FL1), and VE% (FL2)
I read some where that 1 way to do it would be to ZERO out the VE%(FL2) and some how add it to the other VE table.

[EagleMark]

Dave posted up a wiring diagram, pin changes and turbo 400 information etc...

http://www.gearhead-efi.com/Fuel-Inj...7-Turbo-400-4F

[1leg]

That great info, Thanks to Dave for doing that. I was sick all weekend and didn't get anything done on the suburban. I was able to get the TPS down to .61 tonight. I'll work on it this weekend and report back.

[EagleMark]

I'm thinking the 1227747 can control the turbo 400 if you look at this diagram... A7

[gregs78cam]

It should, we have one in a 1ton box van.

[1leg]

It should, we have one in a 1ton box van.

What bin might you have in that 1ton.

I saw this in the diagram before. but I figured all the smart guys on this board would have thought it out.

[EagleMark]

We did. Turbo 400 = 1227787. 700r4 = 1227747. Ha! You have any idea how many times I have used this diagram and never got down to bottom to see Turbo 400? I just happened to spot it today looking for wiring diagram for fasteddi soliniod, he was hooking it to ground and I swore it needed to be hooked to power as the ECM was ground...

I really don't think you need a one ton or turbo 400 specific bin, just have to figure out how to adjust TCC ground in XDF! But there are van 5.0 and 5.7L 3 speed bins in the ECM information thread. But I don't remeber anything in XDF for it, going to look now...