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| ECM upgrade (1227730) for stock 2.8 (Page 7/107) |
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Knight
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JAN 17, 02:23 AM
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Anybody have a spare 7730 lying around...like in a corner...on a shelf...in a garage...in a car...
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FieroVin
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JAN 17, 07:28 AM
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Try Ebay, I found a few there. ------------------
Vin
Registered since March 2003
Fieros at The Glen 2007
86 SE 2M6 Deceased
86 SE 2M4 Burned
87 GT Black
87 GT Med. Red over Silver
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Capitol City Fiero
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JAN 18, 05:18 AM
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Ryan time for a bump..........................
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Joseph Upson
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JAN 18, 07:36 AM
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| quote | Originally posted by Knight:
What are the differences between the 3500 non-VVT and the 3400. Will the 3500 replace the 3400. I know that the 3900VVT and de-stroked 3500VVT are a different engine than the 3500 non-VVT. Can't remember if its both the block and heads. I just don't want to deal yet with all the computer and electronic issues that have yet to be fully dealt with for the latest GM V6 engines. Someone on 60degree6 has a cable conversion for the 3500's drive by wire throttle. I think it is mentioned in the thread about a 3500 head on a 3400 short block hybrid. |
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The 3500 has a better flowing intake system including the heads which many of the fwd 3400 guys are swaping their top end for. It also has larger diameter crank pins to stiffen the crank, one oil squirter for pistons #5 & 6 and 5.9" rods along with a few other minor external changes that should prove it to be overall stronger than the 3400 with a question mark for the pistons since the pin is moved closer to the top. Who knows GM may have used forged pistons in it like those found in the 3.6 DOHC motor found in the front wheel drive vehicles now as documented on their site. It's not likely but then again they also stated the steel crank was reserved for the 3500 V6 SUVs and I discovered personally on two occassions that was not the case in engines from a 04 Malibu and 05 G6 with the 3500.
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timgray
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JAN 18, 07:51 AM
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| quote | Originally posted by Knight:
Thanks guys. Very helpful.
The 3400 won't run an electronic transmission? Crap! I wanted a strong transmission that could handle the torque and was planning on a 4T65e. Can a 4T60 be beefed up with 4T65e internals?
And that 3400 install -- DAMN that is what I am talking about. I want to have the intake and valve covers painted red like your second picture. Please explain about rerouting the engine harness. |
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you can get a controller to run a 4t65e in your fiero for less than $800.00 and it gives you options that you would want on a strip and possibly street. putting an electronic tranny is easy if it bolts up and you can get axles.[This message has been edited by timgray (edited 01-18-2007).]
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timgray
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JAN 18, 07:56 AM
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How about tuneability? the fiero ECM has lots of info out there to get a guy into chip modding quite easy, how much info is out there for this newer ECM and chipset? Do you use TunerCat with it easily or do you use somethign else?
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Darth Fiero
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JAN 18, 02:35 PM
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| quote | Originally posted by timgray:
How about tuneability? the fiero ECM has lots of info out there to get a guy into chip modding quite easy, how much info is out there for this newer ECM and chipset? Do you use TunerCat with it easily or do you use somethign else? |
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I use tunercat software for both ECMs. From what I have seen, the OE Fiero 2.8 computers have much less items that can be tuned than the 7730 system. Below are some examples of what can be changed in both ECMs using the Tunercat software...
| quote | 85 Fiero 2.8 ECM
ECM Switch Parameters
Sync. Mode Closed Throttle Fuel
Transmission Type (X = Manual)
2 Bar MAP Sensor Present
Knock Sensor Enable (X = Enabled)
EGR System Present (0 = Enabled)
EGR System Diagnostic Enable (Error 32)
MAP Sensor High Diag Enable (Error 33)
MAP Sensor Low Diag Enable (Error 34)
Knock Diagnostic Enable (Error 43)
O2 Sensor Lean Diag. Enable (Error 44)
O2 Sensor Rich Diag. Enable (Error 45)
ECM Constants
Spark Reference Angle
Cool. Comp. Spark Advance Bias
Extended Spark RPM Slope
EGR Spark Advance Correction Bias
Knock Retard Per Test Loop
Delay for Knock Retard Recovery
Max Allowable Knock Retard
Base Pulse Constant
Min. Async Injector Pulse Width
Max. Async Injector Pulse Width
Minimum Coolant Temp. For Closed Loop
Closed Loop Delay Timer
Sync Fuel Mode Enable P.W. Threshold
Sync Fuel Mode Disable P.W. Threshold
Cold Engine AFR Coolant Temp Threshold
Crank AFR Decay Scale Factor
Minimum BLM
Maximum BLM
Stochiometeric Air Fuel Ratio
Power Enrich. Enable RPM Threshold
Power Enrich. Enable Delta TPS Thresh.
Power Enrich. Mode AFR
Power Enrich Enable Primary TPS Thresh.
P. E. Enable Primary TPS Thresh. Hyster.
P. E. Enable Secondary %TPS Threshold
Power Enrich Enable Primary MAP Thresh.
Power Enrich Enable Secondary MAP Thresh
Power Enrich Enable Coolant Temp Thresh
Accel Enrich Enable Delta MAP Threshold
Accel. Enrich. Enable Delta TPS Theshold
TPS Thresh. for 2X Delta MAP A.E. Thresh
TPS Thresh for 4X Delta MAP/TPS AE Contr
Decel Enlean Enable Delta MAP Threshold
Decel Enlean Enable TPS Threshold
DFCO Enable RPM Limit
DFCO Disable RPM Limit
Decel Fuel Cutoff (DFCO) Rate
DFCO Enable Speed Threshold
DFCO Disable Speed Threshold
DFCO Enable %TPS Threshold
DFCO Enable MAP Threshold
DFCO Enable MAP Threshold Hysteresis
Clear Flood %TPS Threshold
Clear Flood AFR
Desired Idle RPM in Park/Neutral
Idle RPM Adder For A/C On
EGR Enable Coolant Temp. Threshold
EGR Enable %TPS Threshold
EGR Disable %TPS Threshold
EGR Enable Vacuum Threshold
EGR Disable Vacuum Threshold
EGR Diagnostic Upper Duty Cycle Limit
TCC Lock Speed Threshold
TCC Unlock Speed Threshold
Max. Positive Delta TPS For TCC Enabled
Max. Negative Delta TPS For TCC Enabled
TCC Low MPH Coast Load Limit
TCC High MPH Coast Load Limit
TCC Coast Load Limit High/Low MPH Thresh
TCC Coast Load Limit Hysteresis
TCC Enable Coolant Temp. Threshold
TCC Lockup Delay
Fuel Cutoff Engine Speed
Fuel Resume Engine Speed
Fuel Cutoff Speed
Fuel Resume Speed
A/C Disable %TPS Threshold
PROM ID
N/V Ratio for 5th Gear
N/V Ratio for 4th Gear
N/V Ratio for 3rd Gear
N/V Ratio for 2nd Gear
N/V Ratio for 1st Gear
RPM Tolerance for 5th Gear
RPM Tolerance for 4th Gear
RPM Tolerance for 3rd Gear
RPM Tolerance for 2nd Gear
RPM Tolerance for 1st Gear
Shift Light Delay Time (1st Gear)
Shift Light Delay Time (2nd - 5th Gear)
Shift Light Enable RPM (4th -> 5th)
Shift Light Disable MAP (4th -> 5th)
Shift Light Enable RPM (3rd -> 4th)
Shift Light Disable MAP (3rd -> 4th)
Shift Light Enable RPM (2nd -> 3rd)
Shift Light Disable MAP (2nd -> 3rd)
Shift Light Enable RPM (1st -> 2nd)
Shift Light Disable MAP (1st -> 2nd)
Tables
ECM Switch Table
ECM Constant Table
Main Spark Advance Vs. RPM Vs. MAP
Cool Compensation Spark Vs Vacuum
EGR Spark Advance Correction Vs. %EGR
Power Enrich Spark Advance Vs RPM
Cold Engine AFR Vs. Coolant Temp. Vs. MAP
Crank Air Fuel Ratio Vs. Coolant Temp.
Time-Out Run AFR Correction Vs. Coolant Temp.
%Volumetric Efficiency Vs. RPM Vs. MAP
%Vol. Efficiency Adder Vs. RPM
Accel Enrich. Delta MAP Factor Vs. Delta MAP
Accel Enrich. Delta TPS Factor Vs. Delta TPS
Accel. Enrich Temp. Correction Vs. Cool. Temp.
Decel Enlean Temp. Correction Vs. Cool. Temp.
Decel Enlean Delta MAP Factor Vs. Delta MAP
Decel Enlean. Delta TPS Factor Vs. Delta TPS
Base Pulse Constant Vs. EGR Duty Cycle
BPW Battery Voltage Correction Vs. Battery Voltage
Injector PW Correction Vs. Battery Voltage
Low Pulse Width Injector Offset Vs. BPW
MAT BPW Correction Factor Vs. MAT
Desired Idle RPM Vs. Battery Voltage
Fast Idle IAC Position Offset Vs. Coolant Temp.
Power Steering Stall IAC Position Offset Vs. Baro
%EGR Vs. Vacuum Vs. RPM
TCC Upper Load Limit Vs. MPH
TCC Lower Load Limit Vs. MPH
Knock Attack Rate Vs. RPM
Knock Retard Recovery Rate Vs. RPM
Shift Light Enable RPM Vs. %TPS (All Gears) |
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| quote | 86-88 Fiero 2.8 ECM
ECM Switch Parameters
Sync. Mode Closed Throttle Fuel
Transmission Type (X = Manual)
2 Bar MAP Sensor Present
Speed Sensor Diag. (Error 24)
Wastegate Overboost Diag. (Error 31)
EGR Diagnostic (Error 32)
O2 Sensor Lean Diagnostic (Error 44)
Knock Sensor Diagnostic (Error 43)
O2 Sensor Rich Diagnostic (Error 45)
ECM Constants
Spark Reference Angle
Cool. Comp. Spark Advance Bias
Extended Spark RPM Slope
EGR Spark Advance Correction Bias
Base Pulse Constant
Min. Async Injector Pulse Width
Max. Async Injector Pulse Width
Minimum Coolant Temp. For Closed Loop
Closed Loop Delay Timer
Sync Fuel Mode Enable P.W. Threshold
Sync Fuel Mode Disable P.W. Threshold
Cold Engine AFR Coolant Temp Threshold
Crank AFR Decay Scale Factor
Minimum BLM
Maximum BLM
Stochiometeric Air Fuel Ratio
Power Enrich. Enable RPM Threshold
Power Enrich Enable Primary TPS Thresh.
P. E. Enable Primary TPS Thresh. Hyster.
P. E. Enable Secondary %TPS Threshold
Power Enrich Enable Primary MAP Thresh.
Power Enrich Enable Secondary MAP Thresh
Power Enrich. Enable Delta TPS Thresh.
Power Enrich Enable Coolant Temp Thresh
Power Enrich. Mode AFR
Accel Enrich Enable Delta MAP Threshold
Accel. Enrich. Enable Delta TPS Theshold
TPS Thresh. for 2X Delta MAP A.E. Thresh
TPS Thresh for 4X Delta MAP/TPS AE Contr
Decel Enlean Enable Delta MAP Threshold
DFCO Enable RPM Limit
DFCO Disable RPM Limit
Decel Fuel Cutoff (DFCO) Rate
Decel Enlean Enable TPS Threshold
DFCO Enable Speed Threshold
DFCO Disable Speed Threshold
DFCO Enable %TPS Threshold
DFCO Enable MAP Threshold
DFCO Enable MAP Threshold Hysteresis
Clear Flood %TPS Threshold
Clear Flood AFR
Desired Idle RPM in Park/Neutral
Idle RPM Adder For A/C On
EGR Enable Coolant Temp. Threshold
EGR Enable %TPS Threshold
EGR Disable %TPS Threshold
EGR Enable Vacuum Threshold
EGR Disable Vacuum Threshold
EGR Diagnostic Upper Duty Cycle Limit
TCC Lock Speed Threshold
TCC Unlock Speed Threshold
Max. Positive Delta TPS For TCC Enabled
Max. Negative Delta TPS For TCC Enabled
TCC Enable Coolant Temp. Threshold
TCC Low MPH Coast Load Limit
TCC High MPH Coast Load Limit
TCC Coast Load Limit High/Low MPH Thresh
TCC Coast Load Limit Hysteresis
TCC Lockup Delay
Fuel Cutoff Engine Speed
Fuel Resume Engine Speed
Fuel Cutoff Speed
Fuel Resume Speed
A/C Disable %TPS Threshold
N/V Ratio for 5th Gear
N/V Ratio for 4th Gear
N/V Ratio for 3rd Gear
N/V Ratio for 2nd Gear
N/V Ratio for 1st Gear
RPM Tolerance for 5th Gear
RPM Tolerance for 4th Gear
RPM Tolerance for 3rd Gear
RPM Tolerance for 2nd Gear
RPM Tolerance for 1st Gear
Shift Light Delay Time (1st Gear)
Shift Light Delay Time (2nd - 5th Gear)
Shift Light Enable RPM (4th -> 5th)
Shift Light Disable MAP (4th -> 5th)
Shift Light Enable RPM (3rd -> 4th)
Shift Light Disable MAP (3rd -> 4th)
Shift Light Enable RPM (2nd -> 3rd)
Shift Light Disable MAP (2nd -> 3rd)
Shift Light Enable RPM (1st -> 2nd)
Shift Light Disable MAP (1st -> 2nd)
PROM ID
Tables
ECM Switch Table
ECM Constant Table
Main Spark Advance Vs. RPM Vs. MAP
Cool Compensation Spark Vs Vacuum
EGR Spark Advance Correction Vs. %EGR
Power Enrich Spark Advance Vs RPM
Cold Engine AFR Vs. Coolant Temp. Vs. MAP
Crank Air Fuel Ratio Vs. Coolant Temp.
Time-Out Run AFR Correction Vs. Coolant Temp.
Closed Throttle %Vol. Eff. Vs. RPM Vs. MAP
OpenThrottle %Vol. Eff. Vs. RPM Vs. MAP
%Vol. Efficiency Adder Vs. RPM
Accel Enrich. Delta MAP Factor Vs. Delta MAP
Accel Enrich. Delta TPS Factor Vs. Delta TPS
Accel. Enrich Temp. Correction Vs. Cool. Temp.
Accel Enrich. RPM Correction Vs. RPM
Decel Enlean Temp. Correction Vs. Cool. Temp.
Decel Enlean Load Correction Factor Vs. MAP
Decel Enlean Delta MAP Factor Vs. Delta MAP
Decel Enlean. Delta TPS Factor Vs. Delta TPS
Base Pulse Constant Vs. EGR Duty Cycle
BPW Battery Voltage Correction Vs. Battery Voltage
MAT BPW Correction Factor Vs. MAT
Injector PW Correction Vs. Battery Voltage
Low Pulse Width Injector Offset Vs. BPW
Desired Idle RPM Vs. Battery Voltage
Fast Idle IAC Position Offset Vs. Coolant Temp.
Power Steering Stall IAC Position Offset Vs. Baro
%EGR Vs. Vacuum Vs. RPM
TCC Upper Load Limit Vs. MPH
TCC Lower Load Limit Vs. MPH
Shift Light Enable RPM Vs. %TPS (All Gears) |
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| quote | 90-92 F-body 3.1 7730 ECM
ECM Switch Parameters
VATS Select (X = active)
Transmission Type (X = Manual)
Normally Open Fan 1 Request
Normally Open Fan 2 Request
Lean Cruise Option (X = active)
Highway Mode Fuel (X = enabled)
Fuel Mode (0 = AFR Mode X = BPW Mode)
O2 Sensor Diagnostic (Error 12)
Vss Sensor Diagnostic (Error 24)
EGR Diagnostic (Error 32)
Knock Sensor Diagnostic (Error 43)
VATS Diagnostic (Error 46)
ECM Constants
Initial Spark Advance
Extended RPM Spark Advance Slope
Main Spark Extended RPM Limit
EGR Spark Adv. Correction Bias
Launch Mode Knock Attack Rate Multiplier
Launch Mode Spark Advance Bias
Launch Mode Vehicle Speed Threshold
Launch Mode Positive Delta TPS Thresh.
Launch Mode Disable Neg. Delta TPS
Launch Mode Enable Delta MAP Thresh.
Launch Mode Disable Delta MAP Thresh.
Maximum Time in Launch Mode
Idle Spark Enable TPS Threshold
Idle Spark Enable Speed Threshold
Idle Spark Disable TPS Threshold
Idle Spark Disable Speed Threshold
Highway Mode Spark, Max MAP
Highway Mode Spark, Min Coolant Temp.
Highway Mode Spark Disable RPM Threshold
Coolant Compensation Spark Advance Bias
TCC Locked Spark Retard Bias
Initial Time Out Spark Bias
Knock Retard Enable RPM Threshold
Knock Retard Enable Speed Threshold
Knock Retard Enable Coolant Temp. Thresh
Fan 1 On Coolant Temp, Low MPH, A/C Off
Fan 1 Off Coolant Temp, Low MPH, A/C Off
Fan 1 On Coolant Temp, Hi MPH or A/C On
Fan 1 Off Coolant Temp, Hi MPH or A/C On
Fan 1 Low/High MPH Threshold
Fan 2 On Coolant Temp, Low MPH, A/C Off
Fan 2 Off Coolant Temp, Low MPH, A/C Off
Fan 2 On Coolant Temp, Hi MPH or A/C On
Fan 2 Off Coolant Temp, Hi MPH or A/C On
Fan 2 Low/High MPH Threshold
Fan 1 On Time Delay
Fan 2 On Time Delay
IAC Steps Added for Fan 1 On
IAC Steps Added for Fan 2 On
Max Vehicle Speed for Idle
Idle RPM Offset for A/C On
Fuel Cutoff RPM
Fuel Resume RPM
Fuel Cutoff Vehicle Speed
Fuel Resume Vehicle Speed
Minimum RPM for Block Learn
Maximum RPM for Block Learn
Maximum RPM for Idle Block Learn
Minimum BLM Value
Maximum BLM Value
Minimum Integrator Value
Maximum Integrator Value
Stochiometric AFR
Maximum Allowable AFR
Highway Mode Fuel AFR
Highway Mode Fuel Enable Speed
Highway Mode Fuel Disable Speed
Minimum Async Pulse Width
Maximum Async Pulse Width
Injector Flow Rate
Injector Flow Rate (Display)
Cold Closed Loop Enable Timer
Warm Closed Loop Enable Timer
Hot Closed Loop Enable Timer
Max Coolant Temp for Cold C/L Timer
Min Coolant Temp for Hot C/L Timer
Min. Closed Loop Coolant Temp.
Power Enrich TPS Enable Hysteresis
Power Enrich Enable MAP Threshold
Power Enrich Enable MAP Hysteresis
Accel Enrich Enable Delta TPS Threshold
Accel Enrich Disable Delta TPS Threshold
CCP Enable Coolant Temp Threshold
A.I.R. Enable Coolant Temp. Threshold
Minimum EGR Duty Cycle
EGR On VE Compensation Factor
EGR Enable Min Coolant Temp
EGR Disable MAP Threshold
EGR Enable MAP Threshold
TCC Lock Delay Time
Unconditional TCC Lock Vehicle Speed
TCC Disable TPS Threshold, Low Gears
TCC Enable TPS Threshold, Low Gears
TCC Lock Enable MPH Thresh, Low Gears
TCC Lock Disable MPH Thresh, Low Gears
TCC Lock Enable MPH Thresh, Low Gr, A/C
TCC Lock Disable MPH Thresh, Low Gr, A/C
TCC Disable TPS Threshold, High Gear
TCC Enable TPS Threshold, High Gear
TCC Lock Enable MPH Thresh, High Gear
TCC Lock Disable MPH Thresh, High Gear
TCC Lock Enable MPH Thresh, Hi Gr, A/C
TCC Lock Disable MPH Thresh, Hi Gr, A/C
TCC Lock Enable Coolant Temp Threhold
TCC Lock Disable Coolant Temp Threhold
Number of Cylinders
Road Speed Constant
Instrument Panel VSS Pulse Divisor
Prom ID
Tables
ECM Switch Table
ECM Constant Table
Main Spark Advance Vs. MAP Vs. RPM
Base Cool. Adv. Correction Vs. Load Vs. Cool. Temp
Launch Mode Spark Advance Vs. RPM Vs. MAP
PE Spark Advance Correction Vs. AFR
EGR Spark Advance Correction Vs. % EGR
TCC Locked Spark Retard Vs. RPM Vs. MAP
Highway Mode Spark Advance Vs. MAP
Initial Time Out Spark Vs. Coolant Temp.
Time Out Spark Decay Vs. Startup Coolant Temp.
Knock Retard Attack Rate Vs. RPM
Knock Retard Attack Rate Vs. RPM in PE
Knock Retard Recovery Rate Vs. RPM
Knock Retard Recovery Rate Vs. RPM in PE
Maximum Knock Retard Vs. RPM
Maximum Knock Retard Vs. RPM in PE
Idle Spark Multiplier Vs. Coolant Temp.
Idle Spark Multiplier Vs. MAP
Idle Overspeed Spark Retard Vs. RPM Error
Idle Underspeed Spark Advance Vs. RPM Error
Main Volumetric Efficiency Vs. RPM Vs. MAP
Volumetric Efficiency Adder Vs. RPM
Idle Volumetric Efficiency Vs. RPM Vs. MAP
VE Correction For EGR On Vs. RPM Vs. Vacuum
VE Correction for EGR Vs. MAP (TCC Locked)
Base Pulse Constant Multiplier Vs. MAP/Baro Ratio
Base Pulse Constant Multiplier vs Baro
Base Pulse Constant Vs. Desired % EGR
Power Enrich Enable TPS Thresh. Vs. Coolant Temp.
Open Loop Idle AFR Correction Vs. MAP
Open Loop AFR Vs. Coolant Temp. Vs. Map
Closed Throttle Open Loop AFR Vs. Coolant Temp.
BPW Offset Vs. Battery Voltage
Low BPW Correction Vs. Pulse Width
Power Enrich Mode AFR Vs. RPM
Accel Enrich Factor Vs. AE Pulse
AE Async Pulse Multiplier Vs. Coolant Temp.
AE Async Pulse Multiplier Vs. Delta TPS
AE Async Pulse Multiplier Vs. Baro
AE Async Pulse Multiplier Vs. MAT
Crank Fuel PW Vs. Coolant Temp.
Crank PW Multiplier Vs. RPM
Crank PW Multiplier Vs. Reference Pulse
Crank PW Multiplier Vs. TPS
Crank PW Multiplier Vs. Baro
Desired Idle Speed Vs. Coolant Temp (In Drive)
Desired Idle Speed Vs. Coolant Temp (In P/N)
Max Throttle Follower Steps Vs. RPM
Max Throttle Follower Steps Vs. Vehicle Speed
Max Throttle Follower Steps Mult. Vs. Cool Temp
Throttle Follower Decay Rate Vs. Vehicle Speed
TCC Lower Load Limit Vs. MPH, Low Gear
TCC Upper Load Limit Vs. MPH, Low Gear
TCC Lower Load Limit Vs. MPH, High Gear
TCC Upper Load Limit Vs. MPH, High Gear
EGR Duty Cycle Vs. MAP Vs. RPM
EGR Duty Cycle Multiplier Vs. Coolant Temp. |
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Fierobsessed
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JAN 18, 02:49 PM
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Just because of the datastream speed alone, the 1227730 is FAR more of a tuneable ECM then the V6 Fiero's could ever be. You see the actual curve of the O2 sensor as opposed to 1.5 second sample rates. The 7730 will do 10 samples in ONE SECOND!!!
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Darth Fiero
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JAN 18, 02:51 PM
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| quote | Originally posted by Fierobsessed:
Just because of the datastream speed alone, the 1227730 is FAR more of a tuneable ECM then the V6 Fiero's could ever be. You see the actual curve of the O2 sensor as opposed to 1.5 second sample rates. The 7730 will do 10 samples in ONE SECOND!!! |
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Agreed. Also, the processing power/speed of the 7730 also appears to be better than the OE Fiero 2.8 ECMs.
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Icelander
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JAN 18, 03:10 PM
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What are the chances that I could install one of these into my 2.5 L4?
I know that it wouldn't make much difference in power or anything. I just want to get rid of the hunting idle and possibly increase it's efficiency.
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Kendall (Icelander) Whitlatch
'85 Fiero 2M4 - 5spd Isuzu
'67 LeMans/GTO clone 6.5 litre TH400
All the rest aren't Pontiacs, so what does it matter?
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