Discussion
There is no static value. They should be as close together as possible and not too high (more than +/-20%) on each bank, that´s basically all. Every throttle position leads to a different adaptive reading. Software handbook says:
These numbers represent the percentage by which the ECU has adjusted the amount of fuel being injected in order to achieve the correct mixture. There are adaptive values for every combination of speed and load, which will change independently of each other. If the engine is running correctly this percentage should be low. If it is high ( >+/-20 percent) then a fault or maladjusted throttle pot should be suspected.
Typical faults could be:
1. Incorrectly fitted or damaged HT leads (lubricate the Ht lead boots with WD40 before fitting, and ENSURE YOU HEAR THE RETAINING CLIP "CLICK" ONTO THE SPARK PLUG TOP.)
2. Air leak into intake or exhaust manifolds
3. Damaged or badly fouled spark plugs
4. Damaged injector wiring (test with injector wiring tester)
5. Excessive purging due to high fuel temperatures
6. Carbon Can or purge lines contaminated with liquid fuel
IF A CAR HAS BEEN RUNNING BADLY WITH FAULTS PRESENT, THE ADAPTIVE MAPS MUST BE RESET TO ZERO. This is done by selecting "ZERO ADAPTIVE MAPS" from the ECU TOOLS menu.
Disconnecting the ECU does not erase its memory on 941 series ECUs!
Regards,
Björn.
These numbers represent the percentage by which the ECU has adjusted the amount of fuel being injected in order to achieve the correct mixture. There are adaptive values for every combination of speed and load, which will change independently of each other. If the engine is running correctly this percentage should be low. If it is high ( >+/-20 percent) then a fault or maladjusted throttle pot should be suspected.
Typical faults could be:
1. Incorrectly fitted or damaged HT leads (lubricate the Ht lead boots with WD40 before fitting, and ENSURE YOU HEAR THE RETAINING CLIP "CLICK" ONTO THE SPARK PLUG TOP.)
2. Air leak into intake or exhaust manifolds
3. Damaged or badly fouled spark plugs
4. Damaged injector wiring (test with injector wiring tester)
5. Excessive purging due to high fuel temperatures
6. Carbon Can or purge lines contaminated with liquid fuel
IF A CAR HAS BEEN RUNNING BADLY WITH FAULTS PRESENT, THE ADAPTIVE MAPS MUST BE RESET TO ZERO. This is done by selecting "ZERO ADAPTIVE MAPS" from the ECU TOOLS menu.
Disconnecting the ECU does not erase its memory on 941 series ECUs!
Regards,
Björn.
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