franz727272 wrote:

Relic wrote:I have added the 8x1 table to the xdf.
Looks like a rail pressure limiter that shuts fueling down from 1670 bar or more.
Changing the 1700 value from 800 to 0 should allow 1700 bar before the rail shuts down.

I also found these single value before the rail tables area.
F3F8A... -700 700 -500 500 17200 16700..... (= -70 70 -50 50 1720 1670 bar [oem=1600] ??????)
They may or may not be significant (16700 only occurs here and in the 8x1).
Could be related to the 1600-1670-1720 bar with 1670-1600=70 and 1720-1670=50
Indeed the 1670 may well be a single value limiter on its own.
But leave them for now and see what happens with the 8x1 table.

Pictures of logs would be appreciated ;)

THX :thumbup:
I need understand how work this map ??
0= NO limits?
1700 bar vs 800 may be cutting fuel 80 mg/str ??? :wtf:

Relic wrote:

franz727272 wrote:

Relic wrote:I have added the 8x1 table to the xdf.
Looks like a rail pressure limiter that shuts fueling down from 1670 bar or more.
Changing the 1700 value from 800 to 0 should allow 1700 bar before the rail shuts down.

I also found these single value before the rail tables area.
F3F8A... -700 700 -500 500 17200 16700..... (= -70 70 -50 50 1720 1670 bar [oem=1600] ??????)
They may or may not be significant (16700 only occurs here and in the 8x1).
Could be related to the 1600-1670-1720 bar with 1670-1600=70 and 1720-1670=50
Indeed the 1670 may well be a single value limiter on its own.
But leave them for now and see what happens with the 8x1 table.

Pictures of logs would be appreciated ;)

THX :thumbup:
I need understand how work this map ??
0= NO limits?
1700 bar vs 800 may be cutting fuel 80 mg/str ??? :wtf:

I assume 0 means unlimited.
Scale hits upto 3000 if remember...no idea what that relates to TBH.
Wont be 80mg as scale if 0.01 = 8mg if it was fuel.

Relic wrote:No lamda sensors... only EGT sensor to make sure you dont fry the engine :D

You have 3x identical lambda tables.
Mass airflow (mg/str) vs rpm = Lambda.
Arguments over wether 14.5 or 14.5 = 1:1 lambda by the bosch ecu.
Need to log AFR with HDS and cross reference the lambda tables to confirm.

Lambda tables are just a toque limiter that uses airflow.
If there is not enough MAF for the requested IQ vs RPM then the IQ will be cut suit the lambda tables.
It doesnt lock fuel to airflow.....only limits fuel if there is not enough air.
Stops you running too rich only.
Doesnt care how weak the mixture is.

Relic wrote:Yes sorry... no AFR in HDS.

Have to lookup the value in the lambda table.
You have actual MAF (mg per one stroke) / Total Quantity (mg per one stroke) = AFR.
AFR / 14.5 or 14.6 = Current Lambda.
Current lambda will never be less than lambda tables (smoke maps).

On HDS to calculate AFR (screenshot)
Actual maf is 940 mg
Total quantity 49 mg @ 4.296 rpm

AFR = 940 / 49 = 19,18 @ 4.296 rpm