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Bmw ista speed sensor software#
If the error message regarding the NOx system appears, we can assume, that the software is correct. In this case – at first, the stock software has to be restored. If this error message does not appear – obviously, the DME software has been “upgraded”: some “benefactor” has tuned off the NOx system. The following error message should appear immediately: ”CD8510: Lost communication”. In the desulfation session is unsuccessful (the voltage of the Lambda probes still is around 2.00V during desulfation session, it means, Lambda = 1.00) and also the increased speed (till 140km/h) does not help to activate the desulfation session, make sure that the NOx system is functioning at all.ĭisconnect the NOx sensor for a moment, start the engine. 1.90V and increased fuel consumption is observed), check the usage of the Stratified charge after desulfation session, driving with speed 60. If the desulfation session is successful (the voltage of the Lambda probes is 1.80. To solve this problem, perform the desulfation session of the NOx catalytic converter as described here.
Bmw ista speed sensor series#
Unfortunately the F series vehicled do not record any error messages in DME in this situation (there are no appropriate error messages intended for F series!). If it does not, continue the check-up.ī) the most typical reason why the Stratified charge is not used: contamination of the NOx catalytic converter is above the norm. If the Stratified charge is restored – move to the next tests. Deleting of adaptations will exclude a range of possible hidden problems from the list of possible problems: insufficient performance of CO catalytic converters, the uneven performance of the engine, incorrect injector adaptations, etc.
Bmw ista speed sensor how to#
How to restore a Stratified charge?Ī) delete the adaptations of the engine and create new ones, as described here. If the engine does not use a Stratified charge, at first the use of it should be restored. If the engine uses a Stratified charge stable (for a longer period of time, a positive result confirmed during several following driving sessions), move to the next tests. To make sure that the engine uses a Stratified charge, follow here. If a Stratified charge by some reason is not used, all symptoms, mentioned at the beginning of this entry, will be typical for the performance of the engine – the engine works in an emergency mode.
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Make sure, if the engine uses a Stratified charge. In addition to the ISTA D/+ tool, you will need also ELM 327 adapter with the required software to read the Misfire counters, which are reported only in OBD Mode 6 (and are not available in ISTA D/+). In situations, when the error messages are recorded in the DME error message memory, use the option “Calculate test plan” of ISTA D/+ and prevent the obvious problems at the first hand.ģ. In this entry, the following case is described: no error messages in the DME error message memory (or there is a 12C401 error message if the NOXEM is installed), but the performance of the engine is unsatisfactory.
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The manufacturer of the car has decided to hide the information regarding its problems from the users of the car.Ģ. Unfortunately, ISTA D/+ gives very limited information, which can be insufficient in some cases. If it is possible, use INPA for F series to diagnose these engines. Symptoms: increased fuel consumption, permanent vibration, uneven performance, low-quality idle.ġ. In this entry: step-by-step recommendations for restoring the performance of the N53 engine.