I know this might sound really stupid, but can a program set each cylinder to run different? I wonder cause I have an issue with the front driver cylinder. I found that the couputer will notice which coil was not working, during my trying to figure out what is going on with my motor, when done I did a check of the codes, and noticed it knew which coils I removed. So, could a program mess up only one cylinder? That is to say, make all the others run fine, but run one lean???? I am still learning about this OBSII stuff, and programing and all. Love the fuel injections, but heck I understand what jets to put in my old Holly :-)
a tune will tune them all the same at once. when the single cylinder stuff starts to happen, it can be anything from a bad plug to bad fuel rails or a valve or a number of other stuff. im currently trying to find out which fuel rails to get because my driver front and rear are running too lean due to the fact that they are the two furthest away from the fuel system inlet.
I don't see how you would know if an individual cylinder is running lean/rich unless you had an O2 sensor on every exhaust pipe. Fuel pressure should be the same across all injectors unless one is slightly clogged up.
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It's better to burn out than to fade away - The Kurgan
Fuel pressure should be the same across all injectors unless one is slightly clogged up.
It's always a little lower on the passenger side due to the fuel crossover tube. It's really a rather poor setup which is why I changed out my fuel rails...
The crossover line is one of the first things I noticed on my car. You are right stl, what a poor setup. You would think they would have made it out of metal of sorts.
Yes, all 8 cylinders can be tuned separately. Each cylinder can be set with it's own fuel enrichment bias, ignition timing, and knock limit. The main spark tables that you use from the handheld do not have these options because they are only available to the people with the dealers software of SCT etc.
Most of the time you can be having a mechanical problem if one cylinder is acting poorly. Also, when dealing with N20 and turbo the first cylinder on the passenger side tends to burn out spark plugs because of the airflow design of the intake manifold. In cases like that where you would know that the problem is not mechanical to begin with (The mechanical problem comes as a result of needing to adjust cylinder bias) you would then adjust the fuel amount for that cylinder and or the ignition timing.
It is nearly impossible to tell what the AFR is for each cylinder, but if you continually have problems in only one cylinder and compression is still normal, then you will want to have that one particular cylinder tuned a little extra to make up for it's inadequate performance.
The crossover line is one of the first things I noticed on my car. You are right stl, what a poor setup. You would think they would have made it out of metal of sorts.
The material it's made out of is not the concern, that just means we can't use E85. for the fuel pressure that we run, hose is a perfectly acceptable material (though not as long lasting as metal should be)
The poor design is the fact that the system is returnless, AND the fuel pressure regulator is mounted on the SAME side that the fuel is delivered, meaning that in high stress conditions the passenger side fuel rail will always have a lower psi at the injectors. It would be like putting the thermostat in your house right next to an A/C vent. It would turn the A/C off before the rest of the house or room had a chance to cool off.
Yes, all 8 cylinders can be tuned separately. Each cylinder can be set with it's own fuel enrichment bias, ignition timing, and knock limit. The main spark tables that you use from the handheld do not have these options because they are only available to the people with the dealers software of SCT etc.
Are you saying that it can't be done with the Pro Racer's software? It was my understanding this software can do anything the dealer's software can do ?
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It's better to burn out than to fade away - The Kurgan
Are you saying that it can't be done with the Pro Racer's software? It was my understanding this software can do anything the dealer's software can do ?
Probably can, I don't use Pro-racer, because I have the Full Advantage III. But it can't be done Via just the handheld.
There are going to be things that the Advantage III can do that the Pro Racer won't.
Probably can, I don't use Pro-racer, because I have the Full Advantage III. But it can't be done Via just the handheld.
There are going to be things that the Advantage III can do that the Pro Racer won't.
I think the only thing the Pro Racer software can't do is create tunes for more than 1 car. At least that is what all the people carrying this software say.
I've seen another tuner(not you) on here say the Pro Racer software is a rip off an not to buy it, but that is a contradiction to what other reputable tuners/dealers say.
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It's better to burn out than to fade away - The Kurgan
If my car gets so cantankerous that I have to tune individual cylinders I'm going to a stand alone Big Stuff 3.
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2007 Mustang GT Vista Blue 740RWHP/motor 904RWHP/spray 9.01 @ 152 mph 1/4 mile, 1.40 60' 2008 Clash of the Titans World Finals Champion 2009 Strictly Street Points leader/ET & MPH Record Holder
2009 GT500 Grabber Orange Vert 594 RWHP 11.5 @ 120mph it's my slow car!
The material it's made out of is not the concern, that just means we can't use E85. for the fuel pressure that we run, hose is a perfectly acceptable material (though not as long lasting as metal should be)
The poor design is the fact that the system is returnless, AND the fuel pressure regulator is mounted on the SAME side that the fuel is delivered, meaning that in high stress conditions the passenger side fuel rail will always have a lower psi at the injectors. It would be like putting the thermostat in your house right next to an A/C vent. It would turn the A/C off before the rest of the house or room had a chance to cool off.
I would like to convert to a return-style system. I know a few that have with good success.
Does a program set each cylinder on its own? 
