PCV MAPS and Polaris ECU Flashes
- Thread starter gerrman
- Start date
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BIGGDAWG
Well-known member
no the opposite is true. if you run auto tune you can only use one map. with out auto tune you can load 2 maps and use a switch to swap from one to the other
Well, both you guys are kinda right. With a PC 5 and Auto tune, you can load two maps or have a map and target AFR map and disable the two map feature. Both sets of features will use the same switch you connect to the PC 5. One thing to remember is that the Auto Tune is a modified version of the Wideband Commander which can be used as AFR gauge or upgraded to the LCD for data logging capability and holding as many maps as you can load on a 1Gb card (I think - the WB 1 with LCD 100 has this feature).
For the ethanol wire question, my testing in Cooke showed about a 6-8% lean out with the wires connected both of my 700s. You can also run really retarded lean AFR's at altitude compared to flat land but I won't put any numbers down at this time.
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BIGGDAWG
Well-known member
Thanks for the post, my sled would not idle without occasionally shutting off & just die as well coming off a quick pull & die up at Eureka (3000'). I never experienced this down low in Placer (0'- 1500') but at times pulling 3 or more to get it started. I called Jim this morning & he said to put -15 in 0% throttle column from 0 rpm to what ever engagement I have (for me that wold be 4000rpm). What kind of changes you make up top side.
Edit: after rereading you post looks it like your running stock pipe & can & wouldn't apply to my set up, thanks anyway.
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sonday_2
Member
o-i-c,,there a pic of one on the box of a pc v
Race,
This should help.
http://www.snowestonline.com/forum/showthread.php?t=67427
The TPS output is an important criteria for the ECU to manage idle and the full range of throttle operation. Many appear to be off from the factory. I personally have experienced TPS issues on my 900 and caused idle problems. Once the sleds TPS setting is confirmed or adjusted to be correct, then you can sync your PCV to the sled and you will see the best possible performance from it.
This should help.
http://www.snowestonline.com/forum/showthread.php?t=67427
The TPS output is an important criteria for the ECU to manage idle and the full range of throttle operation. Many appear to be off from the factory. I personally have experienced TPS issues on my 900 and caused idle problems. Once the sleds TPS setting is confirmed or adjusted to be correct, then you can sync your PCV to the sled and you will see the best possible performance from it.
The link shows you how to adjust the setting of the TPS. The Dealer checked it last month and readjusted it so I think its ok. I guess the question I had was the sync'd portion with the PCV. I called Dyno-Jim & he said hook up the laptop with the PCV & look at the % throttle (window?) in the upper right hand portion with the sled running. It should read 0 @ idle & 100 @ full throttle. Mine read 1 @ idle & 98 @ full throttle. Jim said that with those #'s that should not of been the problem with the low idle & shutting down, but more of a rich condition in the 0 % column on the map page starting at the 500 rpm to whatever engagement I had. Is this the "sync'd" you speak of ?
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May have Jim's map pre-loaded but the sync is something you do to syncronize the PCV to your specific sled, can't be done ahead of time.
When you have PCV installed there is a calibrate TPS funtion in the software under "Powercommand tools". This is where you do the sync or"calibrate" function. You need to do this with the PCV installed on the sled and you need your computer connected to the PCV with software running and you either need a 12V power supply or you need to do it with your sled running.
Here's an excerpt from an e-mail I sent earlier today to describe the process. (it's in the PVC manual too by the way)
I had a little 12V power supply but a car battery would work fine too. There is a thread on SW showing where to power up, it's a three wire plug down in the front left corner by the hood hinge/pipe. From memory connect the 12V positive to the orange wire and the negative to the opposite side, I think it was black/blue (not the middle wire, you don't use that one at all) I installed my PCV, hooked up my laptop with the supplied cable and start the PCV software. Then I powered up the ECU with the 12V supply. If you click on tools in the PCV program you will see a calibrate option and select throttle position. Now you will see a screen with the min and max voltage plus a sensor voltage in the middle. The sensor voltage is what your actual TPS is sending. In my case the actual TPS value was showing .930V but the PCV min value was .910V. If you then click on the reset button you will immediately see the min value change to match your TPS value. You then need to push the throttle to WOT and you will see the max value climb to the highest voltage automatically. Once you have done that, hit OK and your done, the PCV and actual TPS range will be sync'ed.
Hope this helps you guys, it's not as complicated as it sounds and as I mentioned somewhere in this thread, mine was off slightly. If your TPS is calibrated correctly on the sled then this is an easy step to ensure everything is "in sync" and working properly. In your case Race if you do this you will see the numbers at 0 at idle and 100 at WOT like they should be.
When you have PCV installed there is a calibrate TPS funtion in the software under "Powercommand tools". This is where you do the sync or"calibrate" function. You need to do this with the PCV installed on the sled and you need your computer connected to the PCV with software running and you either need a 12V power supply or you need to do it with your sled running.
Here's an excerpt from an e-mail I sent earlier today to describe the process. (it's in the PVC manual too by the way)
I had a little 12V power supply but a car battery would work fine too. There is a thread on SW showing where to power up, it's a three wire plug down in the front left corner by the hood hinge/pipe. From memory connect the 12V positive to the orange wire and the negative to the opposite side, I think it was black/blue (not the middle wire, you don't use that one at all) I installed my PCV, hooked up my laptop with the supplied cable and start the PCV software. Then I powered up the ECU with the 12V supply. If you click on tools in the PCV program you will see a calibrate option and select throttle position. Now you will see a screen with the min and max voltage plus a sensor voltage in the middle. The sensor voltage is what your actual TPS is sending. In my case the actual TPS value was showing .930V but the PCV min value was .910V. If you then click on the reset button you will immediately see the min value change to match your TPS value. You then need to push the throttle to WOT and you will see the max value climb to the highest voltage automatically. Once you have done that, hit OK and your done, the PCV and actual TPS range will be sync'ed.
Hope this helps you guys, it's not as complicated as it sounds and as I mentioned somewhere in this thread, mine was off slightly. If your TPS is calibrated correctly on the sled then this is an easy step to ensure everything is "in sync" and working properly. In your case Race if you do this you will see the numbers at 0 at idle and 100 at WOT like they should be.
This is great info. I think that you can move the cursor into each of the boxes and enter in a value for idle and WOT if you are unable to power up the ECU. The USB connector powers up the PC 5 from the laptop but I don't remember if one can access the TPS calibration without the unit receiving input from the ECU. I know on a PCIII I can enter TPS values without the engine running. Just in case you can enter values on a PC 5, .910 to .930 will be fine for idle and I typically see 4.11 to 4.13 at WOT. I wouldn't worry about being too anal about the values as the PC 5 just wants some endpoints on the voltage scale so it can figure out what % the throttle is open when altering the injector signals richer or leaner.
Rick!,
Not sure about manually entering the values I didn't try that. I do agree I don't think a guy needs to get too anal about it, however, keep this in mind. If you leave the PCV calibration at .910V (which is what mine had out of the box, before I sync'd it) and my actual TPS voltage was .930V as soon as you start up your sled and are idling the PCV is seeing .930V. This would tell the PCV you are no longer at idle (.910V is what it expects to see) and if you look at the maps they start at 0% throttle, then 2% throttle, then 5% throttle. At .930V the PCV will start applying the 2% values and may add or subtract fuel which may not be what you want. That is the benefit of the sync, it syncronizes the map exactly with the true throttle position so you are following the map perfectly. Does that make sense? Again, maybe splitting hairs but alot can happen in the first 4 columns of the map and they represent only 10% of your throttle range. In fact the first 6 columns of the map all occur in the first 20% of your throttle range.
Not sure about manually entering the values I didn't try that. I do agree I don't think a guy needs to get too anal about it, however, keep this in mind. If you leave the PCV calibration at .910V (which is what mine had out of the box, before I sync'd it) and my actual TPS voltage was .930V as soon as you start up your sled and are idling the PCV is seeing .930V. This would tell the PCV you are no longer at idle (.910V is what it expects to see) and if you look at the maps they start at 0% throttle, then 2% throttle, then 5% throttle. At .930V the PCV will start applying the 2% values and may add or subtract fuel which may not be what you want. That is the benefit of the sync, it syncronizes the map exactly with the true throttle position so you are following the map perfectly. Does that make sense? Again, maybe splitting hairs but alot can happen in the first 4 columns of the map and they represent only 10% of your throttle range. In fact the first 6 columns of the map all occur in the first 20% of your throttle range.
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