I'm also interested in this Min/Max Override feature, so I can do away with injector scaling. How do you use it, and how do I know if the memory of my P12 controller will support it?
Type: Posts; User: Rush
I'm also interested in this Min/Max Override feature, so I can do away with injector scaling. How do you use it, and how do I know if the memory of my P12 controller will support it?
I purchased a remanufactured PCM to replace the bad one in my car; the new one doesn't have a VIN assigned to it, but the OS is an older version; Can I just assigned the VIN of my car to it and then...
Could be "Burst Knock Retard" which buffers the spark advance when you step on the gas; or if your Charge Air temperature gets too high it'll also pull some spark.
I'm not sure if someone else has previously posted this or not, if so I haven't found it yet; anyway does antone know what all settings need to be changed when one runs without a cat? So far I found...
Looks like in my case "Cranking VE" is another one not to mess with, even though the document says to. My car was hard starting until I changed it back.
I think this is one table you don't change since it is delta g/cyl, as I found out. I did it the same as the other spark tables and the car ran that crap on starts.
Yep! That's what the document said, but since I wasn't sure what "Burst Knock Retard" was or does; I thought I would ask.
Thanks again.
What about "burst knock retard", I wondering if I should scale this as well?
Thanks! I'll take a look at it tonight and see if it answers my questions.
When doing MAF Scaling wouldn't you also scale the Spark tables as well, since the spark tables are based on CAM and now the calculated CAM is scaled down; i.e. instead of say 1.15gcyc it's now at...
From another site I found this: PID.4 (calculated load) (current airflow / peak airflow @sea level) * (BARO @ sea level / BARO) * 100%); so I guess the next question is where is "peak airflow" set or...
Yep, it was running on the rich side from the 60# injectors. It's on the money now except down near idle which is still running about 4% rich.
I guess I have everyone stumpped. OK how is Mass Air Flow calcualted; my MAF sensor freq. hasn't changed with the larger injectors only the mass air flow g/sec or lb/min have gone down with the...
So far the only thing I found is from OBDII that calcualted load is a percentage of maximum airflow; so my nxt question is why does MAF decrease with larger injectors; i.e. with 60# injectors my MAF...
After going from 60# injectors to 80# injectors; calculated load is no longer 100% to redline, it drops off near 6K RPM. Does anyone know what inputs are used to derive this value? I thought I saw...
After calculating some values I see that this isn't going to work; I had to do a custum PID using a list instead; here are the values I used if anyone is interested:
0.0,0.501
0.1,0.521
0.2,0.542...
I think I figured it out for my LC1, based on HPTuners values they use for an LC1; basically a custum PID for EIO1 V/2.443+0, would give me an output of 1 at gas 14.7. If I'm not mistaken.
Well that all makes sense, so because my LC1 is configured for gas it converts lambda 1 to 14.7 AFR, so if I were to configure it for E85 then it would read about an AFR of 9 at lambda.
My big...
I noticed this while in open-loop, but in closed-loop it looks like it is trying to do lambda for gas still. I'll have to do some more testing I think.
Yes, but a narrowband O2 sensor switches at a lambda for gas and not E85 or any other blend; my LC1 wideband can be configured for various types of fuel which I believe changes the lambda point. I...
I seem to be getting some confusing info from various forum postings and other internet sources about tuning for E85. First of all I’ve seen postings that state that the stoichiometric ratio of...
In case anyone is interested this didn't exactly work as expected on my car, I set the stich based on AFR error in open-loop, check it again and it's still off by 5%, change it again by 5% and then...
I don't know if your tuner found the correct values or not, but there is a spreadsheet in this forum that you just plug the your numbers 75# @ 45PSI on the Cobalt SS tab and it'll give you the flow...
I'm going to test my theory on my car, I had an E85 mix in my car before and my fuel trims were about 10% lean, so If I add 10% to my stoich I get about 13.2 which according to a flex-fuel vehicle is...
I used the one in the Help file ([PID.11.IMP]-14.5) with one exception, instead of 14.5 I used the baro sensor.