I got a really big issue, my PWM to the injectors are (0) when I'm cranking, when i put the throttle to MAX, I only get 0,3 ms ? ! I have changed EVERYTHING, accelenrichement, VE, etc...
Anyone familiar with this problem ?
Regard Tom
Only 0,3ms PWM to the injectors
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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66fb
Re: Only 0,3ms PWM to the injectors
Post some information on your engine -displacement, inj. size, induction setup etc.
Is this a new install or is the problem with a previously running engine?
Post your msq.
Is this a new install or is the problem with a previously running engine?
Post your msq.
Re: Only 0,3ms PWM to the injectors
OK, i send my Msq and my logg file from where I'm cranking, if you are interrested..Lance wrote:Tom,
You are most likely in flood clear mode, meaning that MegaSquirt thinks you have the throttle wide open and is not injecting fuel. Check your TPS (and recalibrate as necessary). If you don't have a TPS, be sure to ground the TPS sensor wire (DB37 pin #22) though a 1K Ohm (or more) resistor.
Lance.
http://www.speedyshare.com/805534606.html
My Msq
http://www.speedyshare.com/309630620.html
Logg file
As for the TPS, I did what's said in the Megamanual how to wire it and so on, and I can se on Megatune how it works proper !
But can it still be wrong ?
Thanks for your answer anyway
/Regards Tom,
Sweden
Re: Only 0,3ms PWM to the injectors
It's a newly installed MSII 3.57 with v2.885, ordered from DIYAutoTune !66fb wrote:Post some information on your engine -displacement, inj. size, induction setup etc.
Is this a new install or is the problem with a previously running engine?
Post your msq.
My school-project, so i really need to get this car going. I have been asking around here in Sweden, but apperently it's to new for these guys here..
http://www.speedyshare.com/309630620.html
My logg file when cranking
http://www.speedyshare.com/805534606.html
My Msq
/Regards Tom
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FixItAgainTony
- Helpful Squirter
- Posts: 82
- Joined: Thu Feb 03, 2005 1:09 pm
Re: Only 0,3ms PWM to the injectors
Tom,
The Flood clear appears to be operating correctly. The PW = 0 when the TPS < 70. When TPS > 70, PW = 0.3ms = flood clear value. Also, the TPS appears to functioning correctly and the values for:
<constant name="tpsMax" units="ADC">942</constant>
<constant name="tpsMin" units="ADC">116</constant>
in the .msq file look reasonable.
I have not idea why the PW = 0 during cranking - the signals all look good - pretty clean electrical setup based on VBatt / RPM looks good.
I noticed a few things:
1. Fuel_Setup > General settings > ECU Type (1=MSII, 2=MicroSquirt) = 1
If you have the 3.57 board (all surface mount components), this is MicroSquirt => set this to 2.
Validate what hardware you have before changing this as it can be hard on things.
http://www.megamanual.com/mt28.htm
The difference between the systems is related to charging of the coil.
2. GBaro = -24344 for the entire log. This seems odd to me. I would disable
Fuel_Setup > General settings > Barometric Correction = Disabled
for the moment. I doubt that this has much to do with it, as MAP/BARO looks okay, but might as well eliminate variables.
3. Ignition advance = 65 degrees during cranking. This may be related to #1, but I am not really sure. Describing if you are running fuel only or fuel + ignition may be useful. Validating the actual timing with a timing light is a good idea.
Good luck with you project.
- Charles.
The Flood clear appears to be operating correctly. The PW = 0 when the TPS < 70. When TPS > 70, PW = 0.3ms = flood clear value. Also, the TPS appears to functioning correctly and the values for:
<constant name="tpsMax" units="ADC">942</constant>
<constant name="tpsMin" units="ADC">116</constant>
in the .msq file look reasonable.
I have not idea why the PW = 0 during cranking - the signals all look good - pretty clean electrical setup based on VBatt / RPM looks good.
I noticed a few things:
1. Fuel_Setup > General settings > ECU Type (1=MSII, 2=MicroSquirt) = 1
If you have the 3.57 board (all surface mount components), this is MicroSquirt => set this to 2.
Validate what hardware you have before changing this as it can be hard on things.
http://www.megamanual.com/mt28.htm
The difference between the systems is related to charging of the coil.
2. GBaro = -24344 for the entire log. This seems odd to me. I would disable
Fuel_Setup > General settings > Barometric Correction = Disabled
for the moment. I doubt that this has much to do with it, as MAP/BARO looks okay, but might as well eliminate variables.
3. Ignition advance = 65 degrees during cranking. This may be related to #1, but I am not really sure. Describing if you are running fuel only or fuel + ignition may be useful. Validating the actual timing with a timing light is a good idea.
Good luck with you project.
- Charles.
Fiat - A great car for those who like to walk.
-
Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: Only 0,3ms PWM to the injectors
V3.57 boards must have the ECU type set to 1 unless you have added the Microsquirt dual spark mods. There's been a bit of confusion about this, but setting the ECU type to 2 with a normal V3.57 will make the injector drivers act rather strangely.FixItAgainTony wrote:I noticed a few things:
1. Fuel_Setup > General settings > ECU Type (1=MSII, 2=MicroSquirt) = 1
If you have the 3.57 board (all surface mount components), this is MicroSquirt => set this to 2.
-
FixItAgainTony
- Helpful Squirter
- Posts: 82
- Joined: Thu Feb 03, 2005 1:09 pm
Re: Only 0,3ms PWM to the injectors
Matt, thank you for catching the ECU setting. I reread what is in the manual, and it is confusing...
Tom,
To get the cranking PW, try changing
Fuel_set_up > 2-point Barometric Correction > At total vacuum % = 147
Fuel_set_up > 2-point Barometric Correction > Rate % = -47
On your set up, these are set to 3277.0 / -27649. These values are outside of the limits.
I checked your file before and after this change with 2.886 and it corrected the cranking PW. I never ran the 2.885 software, but I doubt there is much difference.
[edit:] Also drop the cranking RPM from 1000 to 300
Fuel_set_up > Other Fuel Settings > Max Cranking Speed (RPM) = 300 [end]
- Charles.
Tom,
To get the cranking PW, try changing
Fuel_set_up > 2-point Barometric Correction > At total vacuum % = 147
Fuel_set_up > 2-point Barometric Correction > Rate % = -47
On your set up, these are set to 3277.0 / -27649. These values are outside of the limits.
I checked your file before and after this change with 2.886 and it corrected the cranking PW. I never ran the 2.885 software, but I doubt there is much difference.
[edit:] Also drop the cranking RPM from 1000 to 300
Fuel_set_up > Other Fuel Settings > Max Cranking Speed (RPM) = 300 [end]
- Charles.
Fiat - A great car for those who like to walk.
Re: Only 0,3ms PWM to the injectors
Thanks ALOT for your answer, I don't know witch setting wich did this... But the PW did go up to 3ms nowFixItAgainTony wrote:Matt, thank you for catching the ECU setting. I reread what is in the manual, and it is confusing...
Tom,
To get the cranking PW, try changing
Fuel_set_up > 2-point Barometric Correction > At total vacuum % = 147
Fuel_set_up > 2-point Barometric Correction > Rate % = -47
On your set up, these are set to 3277.0 / -27649. These values are outside of the limits.
I checked your file before and after this change with 2.886 and it corrected the cranking PW. I never ran the 2.885 software, but I doubt there is much difference.
[edit:] Also drop the cranking RPM from 1000 to 300
Fuel_set_up > Other Fuel Settings > Max Cranking Speed (RPM) = 300 [end]
- Charles.
All thanks to you and everyone else who helped me at this forum !
/Tom