itemonsale
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« on: October 24, 2013, 05:50:57 PM »
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I am running a few problems on my 8E0 1.8T , would you please help me !!!!
1. I am getting timing pulled at least -8 degree at different range of RPM , I would like to know if it is weather knock voltage being too high result in timing reduce or it is something else ( air temp vs timing? the reason I bough this up because the temperature get hotter the car have no power ) I don't have the Air Temp vs Timing map ...can someone help me find the map?
2. Seem like I have a map out of boundary cause my ECU to shut off at high RPM while driving, are there anyway I can search for it?
Thank you in advance !
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itemonsale
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« Reply #1 on: October 25, 2013, 09:33:30 AM »
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anyone??? please help me
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carsey
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« Reply #2 on: October 26, 2013, 04:39:10 PM »
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Need a proper log of just a run in 3rd gear low RPM to redline so can see a good idea whats happening.
Looks rich though.... AFR 9-10 at times and actual boost seems a long way over specified.
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itemonsale
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« Reply #3 on: October 27, 2013, 10:41:41 AM »
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Yes sir, I will do that. yeah I should lean it out a bit. I am using a manual boost controller right now so it is not following the PID controller. Thank you again.
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itemonsale
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« Reply #4 on: October 27, 2013, 10:42:38 AM »
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Anyone can help me loop up a map ( Air Temp vs. ignition) please ? I am willing to pay for your time.
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carsey
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« Reply #5 on: October 27, 2013, 06:50:27 PM »
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From the wiki.
IAT effect on requested boost
ME7.1 will adjust the specified load limit depending on IATs. As IAT's go up, ME7.1 brings the max boost up a bit so that the driver can't tell that the car is slow in hot weather. It can do this because the stock boost curve is relatively conservative, and there is plenty of headroom. Also, at some point, if IATs go high enough, max specified load is pulled to prevent knock.
KFTARX - IAT correction for maximum specified load
However, if you are running a lot of boost, and always want maximum performance, there is no point in increasing boost when it is hot, let alone reducing boost when it is cold. Also, as IATs rise, even with a perfectly flat KFTARX and LDIATA (see below), you will see more requested boost because the ECU knows that a higher P/R is required for a given cylinder fill (PV=nRT for you thermodynamics nerds out there). It is unknown if there is a table for that calculation. To compensate, you may want to taper KFTARX across the board as IATs rise to keep your requested boost sane. In particular, be aware that the maximum requested boost is slightly above the maximum MAP reading. Readers who understand PIDs should recognize that really bad things happen when the measured output cannot reach the setpoint...
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itemonsale
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« Reply #6 on: October 27, 2013, 07:00:02 PM »
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Thank you for this valuable information. I studied it and realized it pulled alot of timing when IAT is very high. Correct, I am looking for the KFTARX for my 8E0 bin file which I don't have on my XDF file.
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ddillenger
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« Reply #7 on: October 27, 2013, 08:50:47 PM »
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26C78 is KFTARX, right underneath KFLDHBN.
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
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itemonsale
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« Reply #8 on: October 28, 2013, 04:16:43 AM »
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MANY THANK YOU to all of you !
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itemonsale
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« Reply #9 on: October 28, 2013, 04:21:04 AM »
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am I correct using these parameter for air temp and specific load
Column - 0x158A7 ( 12 data point ) AIR TEMP
Row - 0x13514 ( 12 data point ) LOAD
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itemonsale
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« Reply #10 on: October 28, 2013, 04:25:13 AM »
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Ddillenger , can you help me to find kftarxzk too? please ! thank you
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carsey
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« Reply #11 on: October 28, 2013, 06:58:30 AM »
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Straight after KFTARX
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itemonsale
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« Reply #12 on: October 28, 2013, 07:30:52 AM »
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is it suppose to be 10x12 16 bit map with 0.0000031 factor? for bot KFTARX and KFTARXZF
is that suppose to be Air Temp vs. RPM ?
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carsey
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« Reply #13 on: October 28, 2013, 07:38:42 AM »
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In the 032 HJ file Im looking at the maps are 12x8 with rpm and IAT temp as the axis. 0.000031 is the factor offset.
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itemonsale
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« Reply #14 on: October 28, 2013, 08:08:32 AM »
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I dial in the Map address 16 bit 12x8 ( 0.000031 factor )and the map doesn't' really look linear ( I haven't' define x and y axis yet)
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