Common rail diesel discussion thread

STD Tuning Engine Common rail diesel discussion thread

Common rail diesel discussion thread

Common rail diesel discussion thread

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starynovy

Holset

338

01-26-2020, 02:33 PM #95

So we killed off whole weekend trying to make it work and we did partialy. Managed to get stable boost o 2,1Bar, yes 2 Bar not absolute. And according fuel to it so it should do some 180-190kW on 200CDI. Also managed to kinda tune SOI on hot engine so it doesnt nail or smoke white/blue. But there are serious problems with that ECU going on. Namely:

-water temp modifier maps for MI and PI does not work. Cursor is stuck at 120°C and even changing values under it does absolutely nothing. This means if you tuned SOI maps to hot car it will smoke and not even drive cold. Obviously this needs fixing.

-Crazy jerking. You go say 50km/h on 3rd, revving 1800RPM. You lightly touch pedal to accelerate. Car start to jerk like shit. And we found it is not "app" position changing, thats solid. It is basicaly undriveable. I didnt write SW for this so i dont know how you process and filter fuel request but I guess there are no filters at all and thats why it jerks. You need to implement ramps and mm3/s limiters for app and resulting fuel request. Did not find it anywhere. Its so bad engine mounts are goona rip off so nothing subtle.

-There is some glitch in SW. Car randomly pops in the exhaust like gasser on deceleration. If you hold for example 2000RPM either in netral or driving at random you will get loud sharp pops. I think it glitches and sends some random high opening time to one injector at random SOI.

Untile these get fixed you cannot drive it because there is nothing tuner/user can do to fix.

-------------------------------------------------------------------------------------------------------------------------
Ex: 525tds 130kW, C250TD 160kW, E320CDI 200kW, ML400CDI 230kW, A6 R5TDI 130kW
Now: Q7 V8TDI 240kW, 320d 150kW, 335d 210kW

starynovy

01-26-2020, 02:33 PM #95

So we killed off whole weekend trying to make it work and we did partialy. Managed to get stable boost o 2,1Bar, yes 2 Bar not absolute. And according fuel to it so it should do some 180-190kW on 200CDI. Also managed to kinda tune SOI on hot engine so it doesnt nail or smoke white/blue. But there are serious problems with that ECU going on. Namely:

-water temp modifier maps for MI and PI does not work. Cursor is stuck at 120°C and even changing values under it does absolutely nothing. This means if you tuned SOI maps to hot car it will smoke and not even drive cold. Obviously this needs fixing.

-Crazy jerking. You go say 50km/h on 3rd, revving 1800RPM. You lightly touch pedal to accelerate. Car start to jerk like shit. And we found it is not "app" position changing, thats solid. It is basicaly undriveable. I didnt write SW for this so i dont know how you process and filter fuel request but I guess there are no filters at all and thats why it jerks. You need to implement ramps and mm3/s limiters for app and resulting fuel request. Did not find it anywhere. Its so bad engine mounts are goona rip off so nothing subtle.

-There is some glitch in SW. Car randomly pops in the exhaust like gasser on deceleration. If you hold for example 2000RPM either in netral or driving at random you will get loud sharp pops. I think it glitches and sends some random high opening time to one injector at random SOI.

Untile these get fixed you cannot drive it because there is nothing tuner/user can do to fix.

-------------------------------------------------------------------------------------------------------------------------
Ex: 525tds 130kW, C250TD 160kW, E320CDI 200kW, ML400CDI 230kW, A6 R5TDI 130kW
Now: Q7 V8TDI 240kW, 320d 150kW, 335d 210kW

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1 Vote(s) - 5 Average

Messages In This Thread

Common rail diesel discussion thread - by baldur - 01-13-2019, 01:50 PM

RE: Common rail diesel discussion thread - by firen456 - 01-14-2019, 02:24 AM

RE: Common rail diesel discussion thread - by madmog - 01-29-2019, 05:12 PM

RE: Common rail diesel discussion thread - by barrote - 01-14-2019, 03:50 AM

RE: Common rail diesel discussion thread - by baldur - 01-29-2019, 12:45 PM

RE: Common rail diesel discussion thread - by AlanMcR - 01-30-2019, 12:04 AM

RE: Common rail diesel discussion thread - by firen456 - 01-30-2019, 02:56 AM

RE: Common rail diesel discussion thread - by barrote - 01-30-2019, 05:17 AM

RE: Common rail diesel discussion thread - by baldur - 01-30-2019, 06:25 AM

RE: Common rail diesel discussion thread - by starynovy - 02-02-2019, 02:05 PM

RE: Common rail diesel discussion thread - by Turbo - 02-03-2019, 03:02 AM

RE: Common rail diesel discussion thread - by baldur - 02-03-2019, 05:23 PM

RE: Common rail diesel discussion thread - by Motohead1 - 02-03-2019, 08:01 PM

RE: Common rail diesel discussion thread - by starynovy - 02-04-2019, 12:30 PM

RE: Common rail diesel discussion thread - by baldur - 02-04-2019, 04:30 PM

RE: Common rail diesel discussion thread - by engineengineer - 02-06-2019, 01:25 AM

RE: Common rail diesel discussion thread - by baldur - 02-06-2019, 04:40 AM

RE: Common rail diesel discussion thread - by atypicalguy - 02-06-2019, 04:16 AM

RE: Common rail diesel discussion thread - by baldur - 02-06-2019, 04:52 AM

RE: Common rail diesel discussion thread - by Sotvisp - 02-07-2019, 07:42 AM

RE: Common rail diesel discussion thread - by Sotvisp - 02-07-2019, 07:39 AM

RE: Common rail diesel discussion thread - by baldur - 02-07-2019, 08:28 AM

RE: Common rail diesel discussion thread - by baldur - 02-16-2019, 07:17 AM

RE: Common rail diesel discussion thread - by Motohead1 - 03-23-2019, 06:23 PM

RE: Common rail diesel discussion thread - by baldur - 03-24-2019, 12:53 PM

RE: Common rail diesel discussion thread - by Motohead1 - 03-24-2019, 09:34 PM

RE: Common rail diesel discussion thread - by madmog - 03-25-2019, 01:18 PM

RE: Common rail diesel discussion thread - by baldur - 03-26-2019, 05:36 AM

RE: Common rail diesel discussion thread - by madmog - 03-26-2019, 07:41 AM

RE: Common rail diesel discussion thread - by Langstrom - 04-17-2019, 08:49 AM

RE: Common rail diesel discussion thread - by baldur - 04-17-2019, 08:52 AM

RE: Common rail diesel discussion thread - by starynovy - 04-20-2019, 04:53 AM

RE: Common rail diesel discussion thread - by madmog - 05-11-2019, 06:35 AM

RE: Common rail diesel discussion thread - by baldur - 05-12-2019, 06:03 PM

RE: Common rail diesel discussion thread - by madmog - 05-13-2019, 02:14 PM

RE: Common rail diesel discussion thread - by atypicalguy - 07-29-2019, 11:04 PM

RE: Common rail diesel discussion thread - by baldur - 07-30-2019, 02:08 PM

RE: Common rail diesel discussion thread - by atypicalguy - 08-28-2019, 08:08 PM

RE: Common rail diesel discussion thread - by SurfRodder - 09-04-2019, 01:56 AM

RE: Common rail diesel discussion thread - by SurfRodder - 08-13-2019, 11:52 PM

RE: Common rail diesel discussion thread - by SurfRodder - 07-29-2019, 03:41 PM

RE: Common rail diesel discussion thread - by baldur - 08-14-2019, 01:18 PM

RE: Common rail diesel discussion thread - by baldur - 10-15-2019, 08:01 PM

RE: Common rail diesel discussion thread - by atypicalguy - 10-24-2019, 07:03 PM

RE: Common rail diesel discussion thread - by baldur - 10-24-2019, 10:35 PM

RE: Common rail diesel discussion thread - by SurfRodder - 11-03-2019, 08:02 PM

RE: Common rail diesel discussion thread - by orion - 10-31-2019, 06:23 PM

RE: Common rail diesel discussion thread - by baldur - 10-31-2019, 08:14 PM

RE: Common rail diesel discussion thread - by orion - 11-01-2019, 03:32 AM

RE: Common rail diesel discussion thread - by baldur - 11-22-2019, 10:29 AM

RE: Common rail diesel discussion thread - by SurfRodder - 11-23-2019, 11:18 AM

RE: Common rail diesel discussion thread - by 50harleyrider - 01-20-2020, 01:29 PM

RE: Common rail diesel discussion thread - by baldur - 01-20-2020, 02:37 PM

RE: Common rail diesel discussion thread - by Motohead1 - 11-22-2019, 09:52 PM

RE: Common rail diesel discussion thread - by baldur - 11-26-2019, 10:02 AM

RE: Common rail diesel discussion thread - by MartinB - 11-29-2019, 05:34 AM

RE: Common rail diesel discussion thread - by baldur - 11-29-2019, 02:40 PM

RE: Common rail diesel discussion thread - by ecFSE - 11-29-2019, 02:02 PM

RE: Common rail diesel discussion thread - by MartinB - 11-29-2019, 07:57 PM

RE: Common rail diesel discussion thread - by baldur - 11-30-2019, 03:22 AM

RE: Common rail diesel discussion thread - by starynovy - 11-30-2019, 08:19 AM

RE: Common rail diesel discussion thread - by baldur - 11-30-2019, 09:01 AM

RE: Common rail diesel discussion thread - by MTUPower - 12-01-2019, 09:15 AM

RE: Common rail diesel discussion thread - by baldur - 12-01-2019, 09:36 AM

RE: Common rail diesel discussion thread - by Sotvisp - 12-03-2019, 02:43 AM

RE: Common rail diesel discussion thread - by baldur - 12-03-2019, 08:30 AM

RE: Common rail diesel discussion thread - by MartinB - 12-03-2019, 06:16 PM

RE: Common rail diesel discussion thread - by baldur - 12-04-2019, 03:29 AM

RE: Common rail diesel discussion thread - by AlanMcR - 12-04-2019, 04:55 PM

RE: Common rail diesel discussion thread - by baldur - 12-04-2019, 06:28 PM

RE: Common rail diesel discussion thread - by baldur - 12-09-2019, 06:34 PM

RE: Common rail diesel discussion thread - by MTUPower - 12-10-2019, 07:28 PM

RE: Common rail diesel discussion thread - by baldur - 12-11-2019, 06:30 AM

RE: Common rail diesel discussion thread - by Drewkeen - 12-11-2019, 10:40 AM

RE: Common rail diesel discussion thread - by Sotvisp - 12-12-2019, 08:46 AM

RE: Common rail diesel discussion thread - by baldur - 12-12-2019, 10:18 AM

RE: Common rail diesel discussion thread - by MTUPower - 12-13-2019, 06:04 PM

RE: Common rail diesel discussion thread - by baldur - 12-13-2019, 08:16 PM

RE: Common rail diesel discussion thread - by atypicalguy - 01-01-2020, 02:15 PM

RE: Common rail diesel discussion thread - by baldur - 01-01-2020, 05:33 PM

RE: Common rail diesel discussion thread - by starynovy - 01-19-2020, 08:16 AM

RE: Common rail diesel discussion thread - by baldur - 01-19-2020, 09:44 AM

RE: Common rail diesel discussion thread - by starynovy - 01-19-2020, 12:37 PM

RE: Common rail diesel discussion thread - by starynovy - 01-19-2020, 12:38 PM

RE: Common rail diesel discussion thread - by starynovy - 01-19-2020, 01:00 PM

RE: Common rail diesel discussion thread - by starynovy - 01-19-2020, 01:16 PM

RE: Common rail diesel discussion thread - by baldur - 01-19-2020, 01:38 PM

RE: Common rail diesel discussion thread - by starynovy - 01-19-2020, 01:54 PM

RE: Common rail diesel discussion thread - by baldur - 01-20-2020, 03:48 PM

RE: Common rail diesel discussion thread - by INC - 01-21-2020, 02:24 PM

RE: Common rail diesel discussion thread - by atypicalguy - 01-21-2020, 07:47 PM

RE: Common rail diesel discussion thread - by diesel1972 - 01-22-2020, 05:54 AM

RE: Common rail diesel discussion thread - by starynovy - 01-24-2020, 04:31 PM

RE: Common rail diesel discussion thread - by diesel1972 - 01-25-2020, 06:49 AM

RE: Common rail diesel discussion thread - by starynovy - 01-26-2020, 02:33 PM

RE: Common rail diesel discussion thread - by baldur - 01-28-2020, 07:47 AM

RE: Common rail diesel discussion thread - by diesel1972 - 01-26-2020, 05:03 PM

RE: Common rail diesel discussion thread - by starynovy - 01-26-2020, 06:40 PM

RE: Common rail diesel discussion thread - by diesel1972 - 01-27-2020, 03:39 AM

RE: Common rail diesel discussion thread - by 50harleyrider - 01-27-2020, 06:47 PM

RE: Common rail diesel discussion thread - by starynovy - 01-28-2020, 10:11 AM

RE: Common rail diesel discussion thread - by Turbo - 02-10-2020, 04:29 PM

RE: Common rail diesel discussion thread - by starynovy - 02-12-2020, 08:13 AM

RE: Common rail diesel discussion thread - by Turbo - 02-20-2020, 09:13 AM

RE: Common rail diesel discussion thread - by Grecy - 03-19-2020, 08:40 PM

RE: Common rail diesel discussion thread - by baldur - 03-20-2020, 08:03 AM

RE: Common rail diesel discussion thread - by Grecy - 03-20-2020, 01:45 PM

RE: Common rail diesel discussion thread - by baldur - 03-20-2020, 06:36 PM

RE: Common rail diesel discussion thread - by Grecy - 03-20-2020, 07:54 PM

RE: Common rail diesel discussion thread - by diesel1972 - 03-22-2020, 12:27 PM

RE: Common rail diesel discussion thread - by baldur - 03-31-2020, 06:34 PM

RE: Common rail diesel discussion thread - by SurfRodder - 04-13-2020, 03:20 PM

RE: Common rail diesel discussion thread - by baldur - 04-13-2020, 06:16 PM

RE: Common rail diesel discussion thread - by SurfRodder - 05-26-2020, 10:36 AM

RE: Common rail diesel discussion thread - by atypicalguy - 08-14-2020, 09:30 AM

RE: Common rail diesel discussion thread - by baldur - 04-13-2020, 07:02 PM

RE: Common rail diesel discussion thread - by 50harleyrider - 09-09-2020, 08:01 PM

RE: Common rail diesel discussion thread - by baldur - 10-15-2020, 06:27 PM

RE: Common rail diesel discussion thread - by Grecy - 10-17-2020, 11:57 PM

RE: Common rail diesel discussion thread - by baldur - 10-19-2020, 06:39 AM

RE: Common rail diesel discussion thread - by atypicalguy - 02-05-2021, 10:42 AM

RE: Common rail diesel discussion thread - by baldur - 02-05-2021, 06:06 PM

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