1994 GMC C6000 Topkick C6H042 6.0 L V-8 Gas 225 gross HP 366 cu. in. Engine ADX??

[phonedawgz]

What is the proper ADX definition for a 1994 GMC C6000 Topkick C6H042 6.0 L V-8 Gas 225 gross HP 366 cu. in. engine?

TBI, but no I don't know what the ECM is.

[CamaroDude85]

If it has a 4L80E it's probably gonna be $0E.

[1project2many]

1994 LS0 engine uses 16147525 with or without governor. If you read a cal we can determine the mask but chances are there's no def file in the light truck world that works.

[EagleMark]

I don't remember any 366/6.0L HD engines in ALDL file list...

[RobertISaar]

A137 looks appropriate.

[phonedawgz]

Thanks

[1project2many]

What is the proper ADX definition
Apologies... thought you were asking for mask / XDF definition.

[dave w]

This weekend I had the opportunity to work on one of these trucks, 1993 C6000. I though I'd share my experience. The 366 was replaced with a 454. I've attached the .bin file I read from the 16147525 ECM. I've also attached the .xdf and .adx for the 16147525. Maybe someone in the future will find this tread and this information will help.:thumbsup:

dave w

[Hog]

That 366 is a BBC and its larger cousin in the 7.2 427 BBC. These are tall deck engines IIRC, asthey have the extra oil comntrol riing. They were dropped in 1998 for the L21 454 which is a Vortec 454 with a 24x relcutor crank signal/CNP ignition and ETC using the Vette ECM. Pretty much an overgrown LS1.
Prelude to the GEN 7 8.1 BBC.

peace
Hog

[saturnrocket]

dave, i know this thread is 5 years old but i currently have one of these old uhaul trucks that i put a new gm 488 engine in . i could use some help on a tune for it. i currently am using the stock bdfz.bin file. i have turnercat software and have soldered in the new chip base. the issue i have right now is idle hunting and excessive rpm at idle(1000 to 1100 )set on 850 by chip
. currently using 54 psi fuel pressure with 4degrees of timing.truck seams to run fine with that pressure but doesnt idle good and has a little backfiring issue too. i am a good mechanic but electronic stuff is still ahead of me.

[dave w]

I'm wondering if you changed the Base Pulse Width (BPW) Constant to correct for the new GM 488 (8.0 Liter) engine displacement? That attached .zip file has a BPW calculator for Throttle Body Fuel Injection (TBI).

If the fuel injection system is still the ORIGINAL TBI system the BPW needs to be updated (reprogrammed into the chip) for the new larger 8.0 Liter engine displacement.

To use the BPW calculator, you need to know the displacement and injector flow. We know the displacement of the new engine, 8.0 liters. Here is a link to find the information on injector flow: http://www.gearhead-efi.com/Fuel-Injection/showthread.php?81-GM-TBI-Injector-size-color-and-part-numbers

dave w

[saturnrocket]

thanks dave. the calculation say to use bpw of 161. if i use that number can i return my fuel pressure to 32.at 54 now with bpw of 128.

[dave w]

thanks dave. the calculation say to use bpw of 161. if i use that number can i return my fuel pressure to 32.at 54 now with bpw of 128.

Do you have Throttle Body Fuel Injection? Most all Throttle Body Fuel Injection systems use a fuel pressure of about 13 PSI, with the exception of some 94 - 95 7.4 liter engines that are about 28 PSI.

dave w

[saturnrocket]

Yes mine is 28 to 32 psi with the original 366

[dave w]

My plan would be to use the stock fuel pressure with the calculated BPW, and "Tune" the chip using TunerPro RT data logs. The attached TunerPro RT screen shots are from a 1227747 ECM not the 16147525. The tuning basics are the same for both the 16147525 and 1227747. Unfortunately the TunerPro RT .adx file for the 16147525 is not has developed as the .adx for the 1227747, so considerable homework is required to get the same looking screen shots from the 16147525 .adx file. The .adx file for the 16147525 is adequate for "Tuning" the 488 engine conversion.

Once you post a data log from the 16147525, myself and other members can offer suggestions for "Tuning" the 488 engine conversion. Without a data log, the suggestions are mostly guessing what is needed to "Tune" the 488 engine conversion.

dave w

[saturnrocket]

Source File: C:\Program Files\CATS\11-24-17.bin
Print Date: 11/26/2017



ECM SWITCH TABLE

X Err 24, Vech Speed Err enable, X=Enabled
X Err 31, Governor Diag. X=Enabled
0 Err 32, EGR Error Enable, X=Enabled
X Err 42, EST Err enable, X=Enabled
X Err 43, ESC Err enable, X=Enabled


ECM CONSTANTS

Initial Spark 7 Deg.
Main Spark Bias 0 Deg.
Maximum Spark Advance 42.2 Deg.
Maximum Spark Retard -3.9 Deg.
Knock Retard Enable Speed Threshold 2 MPH
Knock Retard Enable RPM Threshold 1600 RPM
Knock Retard Enable Cool. Temp Threshold -0.5 Deg. C
RPM to Bypass Power Enrich. Delay 5600 RPM
Power Enrichment Mode Delay 60 Sec's
Base Pulse Width Constant 160 Const.
Cold Closed Loop Delay Timer 120 Sec
Warm Closed Loop Delay Timer 30 Sec
Warm Closed Loop Timer Cool Temp Thresh. 69 Deg. C
Closed Loop Min. Coolant Temp. Threshold 40 Deg. C
Minimum MAP To Enable BLM 18.1 Kpa
Maximum MAP To Enable BLM 101.9 Kpa
Max RPM for BLM 5500 RPM
Maximum BLM 172
Miniimum BLM 84
Speed To Enable Open Loop Idle 4 MPH
TPS To Enable Open Loop Idle 2.3 % TPS
Minimum Air Fuel Ratio for Open Loop 14 AFR
Maximum Air Fuel Ratio for Open Loop 13 AFR
EGR On, (TPS) 2 % TPS
EGR Off, (TPS) 3.1 % TPS
EGR On (Eng Speed) 1400 RPM
EGR Off (Eng Speed) 1600 RPM
EGR On, (Low MAP) 28.1 Kpa
EGR Off, MAP, (Low MAP) 34 Kpa
EGR Off, (High MAP) 98.9 Kpa
EGR On, (High MAP) 97.8 Kpa
Min. Coolant Temp. To Enable EGR 115 Deg. C
Idle RPM Adder - A/C On 0 RPM
IAC Park Down Position 145 Steps
Differential IAC For P/N to Drive 0 Steps
IAC Motor Park to Run Delay 0.3 Sec.
Min. IAC Adder for A/C On 8 Steps
Max. IAC Adder for A/C On 25 Steps
Maximum IAC Value 145 Steps
Number of Cylinders 8
PROM ID 6275
Target Governor RPM 5700 RPM
Governor Disable RPM 5650 RPM
Target Governor Vehicle Speed 90 MPH
Target Governor Vehicle Speed Hysteresis 2 MPH
Governor Overspeed Light Enable RPM 6000 RPM


Main Spark Advance

RPM MAP (Kpa)
30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
400 23.9 23.9 23.9 23.9 23.9 23.9 23.9 23.9 23.9 23.9 20.0 17.9 15.1 12.0 9.8
600 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 17.9 15.1 12.0 9.8
800 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 17.9 15.1 12.0 9.8
1000 28.1 28.1 28.1 28.1 28.1 28.1 28.1 27.1 26.0 23.9 20.0 17.9 16.9 15.1 14.1
1200 29.9 35.9 35.9 35.9 35.9 33.0 30.9 28.8 26.0 23.9 22.1 20.0 19.0 16.9 16.2
1600 29.9 40.1 40.1 39.0 38.0 35.2 33.0 29.9 28.1 26.0 23.9 22.1 21.1 20.0 17.9
2000 25.0 41.1 41.1 40.1 39.0 36.9 34.1 32.0 29.9 28.1 26.0 23.9 22.1 20.0 17.9
2400 25.0 41.8 41.8 41.8 41.1 39.0 35.9 35.2 34.1 30.9 28.1 25.0 22.9 21.1 19.0
2800 25.0 43.9 43.9 42.9 41.8 40.1 38.0 36.9 35.9 33.0 29.9 27.1 25.0 22.9 20.0
3200 25.0 45.0 45.0 42.9 41.8 41.8 40.1 39.0 36.9 34.1 30.9 28.8 27.1 25.0 21.1
3600 25.0 46.1 46.1 45.0 43.9 42.9 41.8 41.1 39.0 35.9 33.0 29.9 28.1 26.0 22.9
4000 25.0 46.1 46.1 46.1 45.0 43.9 42.9 41.8 40.1 36.9 34.1 30.9 28.8 27.1 23.9
4400 25.0 46.1 46.1 46.1 45.0 43.9 42.9 41.8 40.1 36.9 34.1 30.9 28.8 27.1 23.9


Base Coolant Temp. Spark Adv. Correction Vs. MAP

Deg. C MAP (Kpa)
40 30 20 10 0
-28 20.03906 20.03906 20.03906 20.03906 20.03906
-16 9.84375 15.82031 15.82031 15.82031 15.82031
-4 9.84375 11.95313 13.00781 13.00781 13.00781
8 9.84375 8.08594 9.84375 9.84375 9.84375
20 9.84375 7.03125 7.03125 7.03125 7.03125
32 4.92188 7.03125 7.03125 7.03125 7.03125
44 4.92188 5.97656 5.97656 5.97656 5.97656
56 4.92188 4.92188 4.92188 4.92188 4.92188
68 0.00000 0.00000 0.00000 2.81250 2.81250
80 -3.86719 -3.86719 -3.86719 -3.86719 0.00000
92 -3.86719 -3.86719 -3.86719 -3.86719 0.00000
104 -2.10938 -2.10938 -2.10938 -3.16406 -3.16406
116 -2.10938 -3.16406 -3.86719 -3.86719 -3.86719


Power Enrichment Spark Advance Vs. RPM

RPM Deg. Added
800 0.0
1200 0.0
1600 3.2
2000 3.2
2400 3.2
2800 3.2
3200 1.1
3600 1.1


Knock Retard Attack Rate Vs. RPM

RPM Deg/msec
400 0.14
800 0.14
1200 0.14
1600 0.14
2000 0.16
2400 0.16
2800 0.16
3200 0.18
3600 0.18
4000 0.20


Max Knock Retard Vs. RPM (in P. E.)

RPM Deg. Retard
800 6.0
1200 8.1
1600 8.1
2000 8.1
2400 8.1
2800 8.1
3200 8.1
3600 8.1
4000 8.1


Knock Retard Recovery Rate Vs. RPM

RPM %/msec
400 8.7
800 8.7
1200 8.7
1600 8.2
2000 8.2
2400 8.2
2800 8.2
3200 7.2
3600 8.2
4000 8.2


Max Knock Retard Vs. MAP

MAP (Kpa) Deg. Retard
60 6.0
70 8.1
80 8.1
90 8.1
100 8.1


Start Up Spark Advance Vs. Coolant Temp.

Deg. C Deg.
Cold 19.7
24.0 19.7
49.7 14.8
80.5 9.8
Hot 9.8


Start Up Spark Advance Decay Mult. Vs. Coolant Temp.

Deg. C Mult.
Cold 58.6
24.0 58.6
49.7 58.6
80.5 29.3
Hot 29.3


Main Fuel Table, % Volumetric Efficiency

RPM Kpa MAP
20 30 40 50 60 70 80 90 100
0 42.2 45.3 47.7 50.0 53.1 58.6 63.3 67.2 69.5
400 44.5 48.0 52.0 55.9 60.2 64.8 69.5 72.7 74.6
800 49.2 52.0 58.6 63.7 68.4 71.9 75.0 79.3 81.6
1200 52.3 61.7 67.6 72.3 77.0 78.9 81.6 83.6 81.6
1600 53.5 64.5 72.7 76.6 80.5 85.2 86.3 86.3 82.8
2000 54.7 66.8 75.0 79.3 83.6 88.7 90.2 90.6 83.6
2400 56.3 69.9 77.3 80.9 84.0 90.2 92.2 91.4 89.5
2800 59.4 70.7 78.1 82.4 86.3 91.0 91.0 93.8 89.8
3200 57.8 69.5 78.5 82.4 86.3 90.6 90.6 93.0 93.0
3600 59.4 69.5 78.5 83.2 85.5 89.1 89.1 92.2 91.4
4000 59.4 69.9 78.9 84.4 85.5 87.9 88.7 89.8 84.8
4400 59.4 68.0 76.2 80.5 83.2 85.9 85.9 85.9 81.6
4800 58.2 64.1 72.7 74.2 76.2 82.4 85.2 84.8 79.7


TPS Threshold For Fast Power Enrich.

RPM % TPS
800 50.0
1200 50.0
1600 50.0
2000 80.1
2400 80.1
2800 80.1
3200 80.1
3600 80.1
4000 80.1


BPW Vs. EGR Vs. Air Flow

gm/sec %EGR
80 92 104 116 128
0.0 134 134 134 134 134
6.3 131 132 132 133 133
12.5 129 130 131 131 132
18.8 126 127 129 130 130
25.0 123 125 127 128 129
31.3 120 123 125 127 128
37.5 118 121 124 125 127
43.8 115 118 122 124 125
50.0 112 116 120 122 124
56.3 109 114 118 121 123
62.5 107 112 117 119 122
68.8 104 109 115 118 120
75.0 101 107 113 116 119
81.3 98 105 111 115 118
87.5 96 103 110 113 117
93.8 93 100 108 112 115
100 90 98 106 110 114


TPS Threshold For Normal Power Enrich.

RPM %TPS
800 50.0
1200 50.0
1600 50.0
2000 60.2
2400 60.2
2800 60.2
3200 60.2
3600 60.2
4000 60.2


Power Enrich. Air Fuel Ratio Vs. RPM

RPM AFR
800 12.5
1200 12.6
1600 12.6
2000 12.4
2400 12.6
2800 12.2
3200 12.6
3600 12.5
4000 12.7


Accel. Enrichment Vs. Differential TPS

%TPS usec Added
0.0 244
3.1 366
6.3 610
9.4 916
12.5 1526
15.6 2502
18.8 3845
21.9 5615
25.0 7568


Accel. Enrichment Vs. Diff. MAP

KPA usec Added
0 122
20 305
40 488
60 977
80 1465


Accel. Enrich. Temp. Correction Vs. Coolant Temp.

Deg. C Mult.
Cold 7.50
-7.0 6.00
6.5 4.81
16.0 4.19
24.0 3.59
31.0 3.31
37.3 3.00
43.7 2.69
49.7 2.41
56.5 2.09
63.5 1.81
71.5 1.31
80.5 1.13
92.0 1.00
108.5 1.00
138.5 1.00
Hot 1.00


Open Loop AFR Vs. Coolant Temp.

Deg. C AFR
-40 9.0
-28 10.0
-16 11.0
-4 11.5
8 12.0
20 12.5
32 12.7
44 13.0
56 13.0
68 13.0
80 13.0
92 13.0
104 13.0
116 13.0
128 13.0
140 13.0
152 13.0


Open Loop Air Fuel Ratio Vs. MAP

MAP (Kpa) AFR
20 2.5
30 2.5
40 2.0
50 2.0
60 2.0
70 1.5
80 1.0
90 0.0
100 0.0


AFR at Startup (Choke)

Deg. C Air Fuel Ratio
-40 6.0
-8 5.0
6 4.0
16 3.5
24 3.0
31 3.0
37 3.0
43 3.0
50 3.0
56 3.0
63 2.5
71 2.0
81 2.0
92 2.0
109 2.0
130 2.0
152 2.0


Choke Air Fuel Ratio Multiplier Vs. Coolant

Deg c % Mult.
-40 96.9
-28 96.9
-16 96.9
-4 96.9
8 96.9
20 96.9
32 96.9
44 96.9
56 96.9
68 96.9
80 96.9
92 96.1
104 96.1
116 96.1
128 96.1
140 96.1
152 96.1


Crank Air Fuel Ratio Vs. Coolant Temp.

Deg C AFR
-40 1.0
-28 1.6
-16 2.3
-4 3.1
8 4.0
20 4.5
32 5.0
44 5.5
56 6.0
68 7.0
80 8.0
92 8.0
104 8.0
116 8.0
128 8.0
140 8.0
152 3.0


IAC Steps Vs Coolant Temperature

Deg C Steps
152 25
140 25
128 25
116 25
104 25
92 25
80 25
68 25
56 25
44 35
32 50
20 70
8 79
-4 88
-16 97
-28 113
-40 145


Target Idle RPM Vs Coolant Temp.

Deg C RPM
COLD 800.0
-4 800.0
20 800.0
44 800.0
68 750.0
92 750.0
116 750.0
140 750.0
HOT 750.0


EGR Spark Advance Vs. % EGR

% EGR Deg. Added
0 0.0
6.25 0.0
12.50 0.0
18.75 0.0
25.00 0.0
31.25 0.0
37.50 0.0
43.75 0.0
50.00 0.0
56.25 0.0
62.50 0.0
68.75 0.0
75.00 0.0
81.25 0.0
87.50 0.0
93.75 0.0
100.0 0.0


% EGR Vs. Load Vs. RPM

RPM MAP (Kpa)
40 50 60 70 80 90 100
800 29.7 29.7 29.7 29.7 29.7 29.7 29.7
1200 32.0 35.2 35.2 35.2 35.2 35.2 35.2
1600 35.2 39.8 44.9 50.0 50.0 50.0 50.0
2000 39.8 44.9 50.0 60.2 69.9 79.7 79.7
2400 44.9 55.1 60.2 69.9 79.7 79.7 79.7
2800 50.0 60.2 69.9 79.7 79.7 79.7 79.7
3200 55.1 69.9 79.7 79.7 79.7 79.7 79.7
3600 55.1 69.9 79.7 79.7 79.7 79.7 79.7
4000 55.1 69.9 79.7 79.7 79.7 79.7 79.7


EGR % Correction Vs. Load Vs. EGR Duty Cycle

Vacuum (Kpa) EGR D.C. (%)
30 40 50 60 70 80 90 100
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
2.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
7.5 0.0 3.1 12.5 18.8 18.8 18.8 18.8 18.8
10.0 0.0 6.3 18.8 31.3 43.8 43.8 50.0 50.0
12.5 0.0 9.4 25.0 37.5 50.0 56.3 59.4 59.4
15.0 0.0 12.5 31.3 43.8 56.3 62.5 68.8 68.8
17.5 0.0 12.5 31.3 43.8 59.4 65.6 71.9 75.0
20.0 0.0 12.5 31.3 43.8 62.5 68.8 75.0 81.3
30.0 0.0 15.6 34.4 56.3 75.0 81.3 93.8 93.8
40.0 0.0 15.6 37.5 56.3 81.3 87.5 93.8 93.8
50.0 0.0 18.8 37.5 56.3 81.3 87.5 93.8 93.8
60.0 0.0 18.8 37.5 56.3 81.3 87.5 93.8 93.8

[saturnrocket]

dave, how do you know the maximun you can raise base pulse width constant to. is ther a forumla to convert bpwc to millseconds.

[dave w]

If possible, keeping the injector BPW close to the original value is best. I would consider using an injector with a higher flow rate to keep the BPW near the original value. Injector offsets and injector parameters are very important. I would closely compare the higher flow injector parameter with the original injector parameters.

For example, you might be able to use 305 injectors at 35psi to keep the BPW close to the original value. I STRONGLY recommend flow testing 305 injectors at 25, 30, 35, & 40 PSI to see which pressure is best for keeping the BPW near the original value.

I don't know of a formula that would convert BPWC to Milliseconds.

dave w

[Fast355]

If possible, keeping the injector BPW close to the original value is best. I would consider using an injector with a higher flow rate to keep the BPW near the original value. Injector offsets and injector parameters are very important. I would closely compare the higher flow injector parameter with the original injector parameters.

For example, you might be able to use 305 injectors at 35psi to keep the BPW close to the original value. I STRONGLY recommend flow testing 305 injectors at 25, 30, 35, & 40 PSI to see which pressure is best for keeping the BPW near the original value.

I don't know of a formula that would convert BPWC to Milliseconds.

dave w

The big trucks and some full size vans use TBI injectors resembling what come in a Holley TBI similar to the front wheel drive TBI cars with a single barrel TBI.

[saturnrocket]

Here is the problem I have . I have standard products tj32 injectors and can’t find any info on flow rating or and Info on bigger injectors to fit my throttle body. Not sure if the old style 2 prong injectors will fit in my tbi unit. I would change the whole tbi but mine has a governer attached

[saturnrocket]

wonder if anybody has put the holley 522-43 injectors in the gm throttle body? there both gm maxi style injectors.

[stew86MCSS396]

My understanding is that they don't fit the GM injector pod. You'll need to install the injectors in a Holley pod. Might take some fiddling to make the Holley pod fit on a GM throttle body. I've done GM pod on Holley TB and it needed some fiddling.

[saturnrocket]

Have you actually tried it. I checked the dimensions on mine and they appear to be the same as Holley ones.

[stew86MCSS396]

Never mind...I'm thinking of something totally different! :doh:

[saturnrocket]

Thanks for your time and response. Before I bought two new injectors I was hoping someone else had already did it. I see u can get pods too so if the Holley injectors don’t fit I can get the Holley pod. If u got the gm pod to fit a Holley base I hope I can do the opposite. Thanks again

[366bigblock]

I found this file in the future and it helped! Thank you so much for sharing!

[saskdan1]

Hi, I have a 93 gmc topkick 366 6.0. I'm working on converting mine into an RV. I was wondering if you know what I can use to do some data logging with this engine. What software can I use. I'm not interested in tuning at this this point, just data logging to sort out some knock sensor and other trouble codes. any suggestions would be great! thank you, Dan

[saturnrocket]

Hi, I have a 93 gmc topkick 366 6.0. I'm working on converting mine into an RV. I was wondering if you know what I can use to do some data logging with this engine. What software can I use. I'm not interested in tuning at this this point, just data logging to sort out some knock sensor and other trouble codes. any suggestions would be great! thank you, Dan
Dan, I got a lot of stuff I can talk to you about but I rather do it by phone. i believe i can help you with what u need. i currently have the computer, burn software, and a tbi with new gm factory injectors installed. i installed a 8.0 litre motor in mine 2 years ago. i also changed the gear ratio to 4.88 for better highway speed. you probably have 5.66 rear if you have a old uhaul truck. i also know that the holley injectors will work in the gm tbi but the computer wont run them. they pull more current and the computer can handle. i have two new ones that i tried. you would have to have the holley electrical sytem to use them. if you like to speak with me email me at kingmac@crosslink.net with your phone number. i be glad to help with knowledge and parts that i dont use anymore.