Well i finally am getting close to done with my car. 420a, forged internals, crower stage 2 cams, ported head, 45lb fuel pressure, 1200cc rc injectors, e-85, turbo at 10lbs, lc-1 wideband. I can get the car started after 5 minutes of cranking, it runs like crap and wont idle. Drove it around the block and that was even more interesting of a cruise. I am really new to this tuning thing, and have read read and read megamanual like everyone has said. I dont know what im missing here. Can somebody look at my tune, and see if anything stands out? How do i attach my file to this thread? sorry if i sound stupid, but that wouldnt be too far off haha
#5163, "RE: Tuning problems, running like $hI#" In response to Reply # 0
So are we talking about MegaSquirt? You need to include much more details. I assume MS as you mentioned the megamanual, but you you need to specify processor, board version, and any custom mods.
Go to http://2gnt.com/, log in, and then click on UPLOAD FILE on the left of the page. Then paste the link it gives you after uploading to your thread here. Give my the .MSQ and any datalog files you have recorded.
#5164, "RE: Tuning problems, running like $hI#" In response to Reply # 1
Yes sorry im running ms2 standalone. Ive been looking all over trying to find how to upload my tune like you said but havent had any luck figuring it out yet. I was playing with it a little more and only thing i found that really stood out was that my EGO gauge on the dashboard was red and was reading about 10.5 volts. I dont know if this is really bad but im assuming if the gauge is red then it is outside the acceptable values. I tried uploading the tunes on symtech but was getting error messages and was unable to do it. everything i try on the ecu is a fail, i will continue trying to figure out how to upload my tune so somebody can take a look at it
#5166, "RE: Tuning problems, running like $hI#" In response to Reply # 3
now im trying to upload my project tune and when i open the projects folder the only two available are the example tunes, and my current tune "turbo420a" is nowhere to be found in my files
#5168, "RE: Tuning problems, running like $hI#" In response to Reply # 5
well i found the turbo420a folder, which file do i upload? i selected current tune and it said it was in the wrong format. maybe the properties files under "Project Cfg" folder??? im just not certain which file needs to be uploaded
#5170, "RE: Tuning problems, running like $hI#" In response to Reply # 7
this is what it says.
File must be a jpg, gif, bmp, png, txt, pdf, doc or MegaSquirt MSQ! Failed to upload file 2-16-11.msq Error Code: 0 Filetype: application/octet-stream Size:54683
#5172, "RE: Tuning problems, running like $hI#" In response to Reply # 9 Feb-19-11 09:25 PM by CODE4
Got your MSQ. Now some questions:
1. Your VE table only goes up to 100 kpa. You mentioned that you are turbo'ed, so where is the rest of your map?
2. Idled like crap - what do you have for idle control? Stepper control via MSII? You have On/Off valve selected in your Idle Control settings, which does not apply to the 420a IAC.
3. Your AFR table needs adjustment. Again it only goes up to 100 kpa. Some spots of the AFR map are very lean, and since you have EGO control on, it is going to pull your VE buckets to the lean side.
4. Ignition table only goes to 100 kpa. All three of your tables need at least a base tune to your maximum boost level, otherwise it is going to be dangerous to operate your engine about 100 kpa as the tables have no values. Boom!
5. High or Low Impedance injectors? Your injector characteristics, specifically the PWM settings are not correct for low impedance.
Sort out these basic settings before even attempting to drive the vehicle. Also your WBO2 should only be in the range of 0 to 5 volts. You mentioned something about 10.5 volts? You mean 10.5:1 AFR? Have you calibrated the sensor values and burned them to the MSII? Under TOOLS, select CALIBRATE AFR TABLE, and select the sensor you have. Then click WRITE TO CONTROLLER, if you have not performed the above.
Just viewed your log file. Your wideband is not setup correctly. Follow the instructions in the msextra manual to set it up. Next, based on your injector size (1200) and the pulse widths I am seeing in the log file, you are running way rich. Your fuel table is for stock sized injectors. You need to find a base msq with similar injectors or scale the whole map down to where your WBO2 readings are near stoich.
Your CLT and IAT sensors - are they the GM sensors or are you using stock 2GNT sensors. If they are 2GNT sensors, have you re-calibrated the appropriate files? The temperatures seem very low - was the ambient temperature during the time of the log around 40*F?
