ECU inputs?

[PoorManQ45]

What are all the sensors that the ECU in the G50 reads? What are all the inputs that go into the ECU?

What are the Voltages/Current that the sensors put out?

Are there any websites, or books/magazines, that give all the settings that the ECU uses? Where can I find an Image from the OEM ECU?

The reason I ask is because I am currently searching for a "Performance" ECU that Might work with the VH45DE.

Thanks for your help. Post any ECUs that you have found that you think might work.

[PoorManQ45]

Here are the sensors that I can think of so far:

O2 sensorsMass Air FlowCoolant TemperatureKnock SensorsVariable Valve Timing

What else is there?

Also, what outputs does the ECU have? Here's what I can think of:Injector Open cycleSignal that goes to the Coil PacksFuel Pump Controller(does ECU controll this?)

edit* Crank Angle SensorThrottle Position Sensor

[AZhitman]

Buy a FSM.

Has all the answers you're looking for.

[elwesso]

Indeed..... If your nice, maybe JUST MAYBE, ill tell you where you can download one from..

[PoorManQ45]

I have a FSM! You can see the front page of it in the picture that I am posting.

I was kind of hoping that the great minds of Nico could come together and help me/us out. But if you're going to be like that, just delete this thread, as it seems that nobody else is willing to look for different options.

[elwesso]

Dude its all in the FSM... Why do we need to type whats in teh FSM when you can just read it...!!!

[PoorManQ45]

I can't read .

I just don't understand. When someone else asks about this stuff, you guys willingly post the information, but when I ask you give me nothing

[1qckser]

Crank Angle Sensor 12 Mass Air Flow Sensor 13 ECT Sensor 14 Vehicle Speed Sensor 16 TCS Signal 21 Ignition Signal Circuit 25 Idle Air Control Valve 22 Fuel Pump Control 31 ECM 32 EGR Function 33 Heated Oxygen Sensor 34 Knock Sensor 35 EGR Temperature Sensor (RH) 41 Intake Air Temperature Sensor 42 Fuel Pump Sensor 43 Throttle Position Sensor 45 Injector Leak 46 Secondary Throttle Sensor 51 Injector Analysis 53 EGR Temperature Sensor (LH) 54 Signal Circuit From A/T Control Unit To ECM 65-71 Single Cylinder Or Multiple Cylinder Misfire 72 Three Way catalyst Function 76 Fuel Injection System Function 77 Rear Heated Oxygen Sensor 82 Crankshaft Position Sensor 84 A/T Diagnosis Communication Line 91 Front Heated Oxygen Sensor Heater 103 Park/Neutral Position Switch 105 EGR & Canister Control Solenoid

OBD2 CodesP0000 No Self Diagnostic Failure Indicated P0100 MAF Sensor P0105 Absolute Pressure Sensor P0110 IAT Sensor P0115 ECT Sensor P0120 TP Sensor P0125 ECT Sensor P0130 Closed Loop, Bank 1 Or Front O2S, Bank 1 P0131 Front O2 Sensor, Bank 1 Lean Shift Monitoring P0132 Front O2 Sensor, Bank 1 Rich Shift Monitoring P0133 Front O2 Sensor, Bank 1 Response Monitoring P0134 Front O2 Sensor, Bank 1 High Voltage P0135 Front HO2S Heater, Bank 1 P0136 Rear O2S, Bank 1 P0137 Rear O2S, Bank 1 Minimum Voltage Monitoring P0138 Rear O2S, Bank 1 Maximum Voltage Monitoring P0139 Rear O2S, Bank 1 Response Monitoring P0140 Rear O2S, Bank 1 High Voltage P0141 Rear H02S Heater, Bank 1 P0150 Closed Loop, Bank 2 Or Front O2S, Bank 2 P0151 Front O2 Sensor, Bank 2 Lean Shift Monitoring P0152 Front O2 Sensor, Bank 2 Rich Shift Monitoring P0153 Front O2 Sensor, Bank 2 Response Monitoring P0154 Front O2 Sensor, Bank 2 High Voltage P0155 Front HO2S Heater, Bank 2 P0156 Rear H02S Sensor, LH Bank P0157–P0160 Rear O2S, Bank 2 P0161 Rear H02S Heater, LH Bank Or Bank 2 P0171 Fuel System Lean, Bank 1 P0172 Fuel System Rich, Bank 1 P0174 Fuel System Lean, Bank 2 P0175 Fuel System Rich, Bank 2 P0180 Tank Fuel Temp Sensor P0300 Random Misfire P0301–P0308 Misfire, Cylinder No. 1–8 P0325 Knock Sensor, Bank 1 P0330 Knock Sensor, Bank 2 P0335 CKP Sensor (Pos) P0340 CMP P0400 EGR System P0402 EGRC/BPT Valve P0403 EGR Volume Control Valve Circuit P0420 TW Catalyst System, Bank 1 P0430 TW Catalyst System, Bank 2 P0440 EVAP Small Leak P0443 Purge Control/V & S/V P0446 Vent Control Valve P0450 EVAP Pressure Sensor P0500 Vehicle Speed Sensor P0505 IACV/AAC Valve P0510 Closed TP Sensor P0600 A/T Comm Line P0605 ECM/ECU P0705 PNP Or Inhibitor Switch P0710 ATF Temp Sensor P0720 VSS A/T P0725 Engine Speed Signal P0731 A/T 1ST Signal P0732 A/T 2ND Signal P0733 A/T 3RD Signal P0734 A/T 4TH Signal Or TCC P0740 TCC SV Solenoid P0744 A/T TCC Signal P0745 Line Pressure S/V P0750 Shift Solenoid/V A P0755 Shift Solenoid/V B P1105 MAP/BARO Switch SOL/V P1110 Intake Valve Timing Control, LH Bank P1120 TP Sensor 2 P1125 Tandem TP Sensor P1130 Swirl Control Valve Control Solenoid Valve P1135 Intake Valve Timing Control, RH Bank 2 P1140 Intake Valve Timing Control Position Sensor, LH Bank 1 P1145 Intake Valve Timing Control Position Sensor, RH Bank 2 P1148 Closed Loop, Bank 1 P1165 Swirl Control Valve Control Vacuum Check Switch P1168 Closed Loop, Bank 2 P1210 Traction Control Signal Circuit P1220 FPCM P1320 Ignition Signal, Primary P1335 CKP Sensor (Ref) P1336 CKP Sensor (POS) Cog P1400 EGRC Solenoid/V P1401 EGR Temp Sensor P1402 EGR System P1440 EVAP Small Leak P1441 VC/V Bypass/V P1443 Canister Control Vacuum Check Switch P1444 Purge Volume Control/V P1445 Purge Volume Control/V P1446 Vent Control Valve P1447 EVAP Purge Flow P1448 Vent Control Valve P1490 VC/V Bypass/V P1491 VC Cut/V Bypass/V P1492 Purge Control/V S/V P1493 Purge Control/V & S/V P1605 A/T Diag Comm Line P1705 TP Sensor A/T P1706 PNP Switch P1760 Overrun Clutch S/V P1900 Cooling Fan Is this enough for ya, just LOOK IN THE FSM

[PoorManQ45]

Thank you!

But do you know the Voltage outputs of those sensors?

Here is the software for the " TARGET="_blank">Motec 800 ECU

I downloaded it and am "playing" with it now. I'm still looking for some other "performance" ECUs that arn't quite as pricy as the Motec unit.

[AZhitman]

Thank you!

But do you know the Voltage outputs of those sensors?

Yep.

But I'd have to cut / paste it....

....from my FSM.

[PoorManQ45]

Ok, I have my FSM sitting infront of me.

Can you atleast tell me where to look?

And in the FSM it doesn't tell me the injector pulse width from idle to redline! What is the dwell time of the coils?

[John Dixon]

I'm putting an emerald M3DK on the VH45 that's going in my Z32.Using manual transmission and junking all the emissions stuff though.DTA P8PRO looks good toohttp://www.emeraldm3d.comhttp://www.dtafast.co.uk

I know of one running on an autronic ECU in the back of a GT40 too

[PoorManQ45]

Thanks for those links

Can you post some pictures when you start/finish your project?

[1qckser]

Buy yourself a Techtom MDM 100, this will allow you see things excatly like the ECU does, it plugs into the consult port and is very easy to use. These are some of the readings it can do, this unit worked nice on my SE-R.

Techtom MDM-100 Functions

Screen Display Description Units SPD Speed mph or km/h RPM Engine RPM RPM AFM1, AFM2 Air Flow Meter voltage volts INJ1, INJ2 Injector Opening Time milliseconds IGN Ignition Timing degrees WTEMP Water Temp 0C or 0F ITEMP Intake Air Temp 0C or 0F BATT Battery Voltage volts THP Throttle Position Sensor volts O2S-1, O2S-2 O2 Sensor Voltage volts O2-1, O2-2 O2 Sensor Condition Lean or Rich IDL-SW Idle Switch On or Off NTL-SW Neutral Switch On or Off POWERST-SW Power Steering Switch On or Off AIRCON-SW A/C Switch On or Off BSCV Boost Solenoid Control Valve On or Off AAC Auxilliary Air Control Valve percentage

[elwesso]

HOw much does the tech thingie cost????

Also, PMQ, it might be better to get the car running first

[IvoryJ30t]

as far as the m800 goes, all you need to do is program in the CAS sensor. i believe it is option 21 or 20. in the motec tech drawings, there is a specific data set to program in nissan's V8 cam sensor.

use a standard CTS [from delco or something], AIT, and program in the TPS sensor.

drop the maf sensor, and use a MAP sensor.

the motec will control the VTC, you just have to program the control table. use a TP vs RPM map.

also, you need the motec ignition expander, and i would go with the multi spark option. [multi spark discharge]

you can use the factory coils, or move to bigger externally mounted coils with short HT leads. [moving the coils off the head will reduce the heat they see, and make them last longer]

ive spent many hours with the motec software, since i want to use the m800 in my setup.

i would only go standalone if your ditching the auto transmission.

[IvoryJ30t]

service manual- ef & ec 10 outline the inputs and outputs of the ecu.

[PoorManQ45]

ive spent many hours with the motec software, since i want to use the m800 in my setup.

Could you post your saved file for the Motec Software?

service manual- ef & ec 10 outline the inputs and outputs of the ecu.

We have different Service Manuals. Mine is the '92 Manual. I will just look through the EF & EC section for some information.

[Q451990]

Has anyone confirmed that all of the Techtom MDM 100 functions will work on a Q45? The last I heard, that wasn't the case....

Heath

[IvoryJ30t]

the motec file i saved would be useless because it doesnt have a fuel or ignition table. [cant set those parameters without a complete engine]

basically, i set the file to use the stock vh's CAS. the coolant temperature sensor would be a delco part [gm], the MAP sensor would also be a GM 3 bar, as well as the IAT sensor.

i set a basic VTC table to operate the cams. from 1000-4000 rpm at greater than 75% throttle, the intake cam is advanced.

the motec will be communicating to an ignition expander, which will connect to 8 individual coils, externally mounted. the expander only uses one ignition signal line, leaving 5 unused outputs for other things.

im not sure if i want to use two solenoids for wastegate control, or one solenoid operating both signals. the motec will control them according to various tables/parameters [direct duty cycle, or proportional derivative]

the fuel rail will be left stock if the stock intake manifold stays. fabbing up a new manifold might just compound the issue.

the EGR system will be no more.

im also going to try to make a knock sensing ignition control device. Q45Tech pointed me to a signal processing chip that will interface the knock sensors. i need to come up with a control scheme. [how much ignition knock retard, and how quickly its restored] that in itself will take months to fine tune.

closed loop wideband O2.

launch control, traction control.

the launch control will have a dial on the dash somewhere to select the launch RPM.

there will also be dials to trim the ignition tables and boost levels.