1.9TDI ALH edc15 038906012bd checksum error? first map

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1.9TDI ALH edc15 038906012bd checksum error? first map

Postby mbrandont » Wed Nov 25, 2020 9:07 pm

I've managed to make my first map using Win OLS for my 01 golf 1.9tdi ALH from creating my own ecu dump, learning to find my maps in each codeblock. The forums have been super essential in helping me learn how these engines operate and how the ecu can manage all the different systems. I've figured out how to reference damos for other engine codes to find the various 1x1 diagnostic factors, IQ limits, MAF calibrations, switches, etc in the ori file from my 038906012BD ecu.

For my first map, my only modifications were to adjust the stock file to fit my physical upgrades to the car:
- linearize for 3.0bar MAP sensor
- EGR map set to 850 and DTCs removed
- SVBL and boost limit raised for VNT17 turbo
- max useable Mass Air Flow limit raised
- max useable IQ limit raised
- pump voltage map adjusted for 11mm injector pump and PP764 0.232 nozzles, by comparing to T4 AXG pump voltage map
- diagnostic limits extended for MAF, MAP and IQ
- N75 map reduced at high end

Then I began to modify the fueling and boost maps. Driver's wish, smoke limiter, torque limiter, boost target

I exported the .bin, and flashed successfully using MPPS only after removing fuse 11 for the instrument cluster. After placing the fuse back, and attempting to start the car, the engine would successfully turn over and fire, then immediately die as if the immobilizer wasn't adapted to my key. I reflashed the original bin and the car started no problem.

I am trying to figure out what changes I made that could possibly have caused this? would this have anything to do with checksums? that's about my best guess but I haven't yet learned exactly how they work and how to correct them, if thats the case. anyone have an idea?

1.9TDI_v1.02.zip


v1.02
returned all maps to original values to troubleshoot no-start

v1.01
engine would start, but not idle
restored Pump Voltage map to original values
restored Launch Control map to original values
smoothed low spot in Driver's Wish
restored SOI Limiter to original axis values
flattened hump in SOI map
fix SOI data factor,offset from -0.023437,78 to 0.01,0

v1.0
increased Torque Limiter to 70 IQ
increased Smoke Limiter by MAF to 70 IQ
Smoke Limiter extended to 1500mg/stroke
increased Driver's Wish to 70 IQ
edited Torque Limiter for rev cut
increase Boost Target to 2650 mbar
increase N75 map on top end and idle
increase Boost Limit map
edited Pump Voltage for 11mm pump and 0.234 nozzles
added EGR and MAF DTC delete maps

v0.1
edited MAP sensor diagnostic limits
EGR off
increase IQ limit to 70mg/stroke
increase MAF limit to 1500 mbar
added Launch Control map
added MAF to MAP switch
added N75 PID maps
raise SVBL
edited MAP linearization for 3 bar sensor
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mbrandont
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