Audi PnP box aan/16082 no spark.
Marius Helmersen Norge
Audi S4 AAN.
Ecu installed but they have
- no spark while cranking.
- They have spark in test mode.
- so the outputs seem good; the config or trigger input seem to be the problem
I do not think it is the trigger
Log of cranking the car.
http://www.vems.hu/files/MembersPage/PeterJensen/S2_log/v3.3_u016082-2018.07.06-22.16.26.vemslog
Trigger log
http://www.vems.hu/files/MembersPage/PeterJensen/S2_log/v3.3_u016082-2018-07-08-19.26.39.triggerlog
Any ides why there is no spark?
- maybe ordered v3/16082 with some special, eg. HALL/HALL input ?
The correct order of installation/testing
- is to test inputs, independently of outputs: with outputs disconnected, or disabled (removing fuses is easiest).
- including input-trigger(s), of course'''
Trigger voltage measurements
- primtrig-VR (crank 135 pulse) DC voltage ?
- same with both ECU-s ?
- sectrig crankhome-VR
- cam-HALL DC voltage ? (when lo and when high)
NEEDED: Config will be uploaded later.
- Good, because it seems either config is the problem (which can be reviewed when uploaded);
- or trigger input; which can be tested on site. (capture and publish triggerlog, see InputTrigger/TriggerLog )
- if no triggerlog pulses, disconnect the HALL sensor and insert temporary wire between GND and sectrig cam-HALL signal (assuming cam-HALL inverter, which is standard). => try again.
Car is also tested using box AAN 3742 and the car is running perfect.
- not a substitute for config and triggerlog, but useful info.
- note: the HALL of 3B can be outside the crankhome-VR, but not for the AAN. So not very likely in this case, esepecially if runs well.
- note: do the measured input trigger voltages (or better: waveforms) differ with the 2 ECU-s ?
- what OscilloScope is on-site ? (now obligatory).
Please make some ESD precautions, and follow install steps (including notes of verifications/measurement). Apparently running into more issues recently (of different kinds, that are difficult to link/relate, perhaps ESD or supply spikes, or some handling could be the common denominator - the probability that it is just luck falls exponentially after every issue ) than 10 other shops combined.
p259 outputs - suspect if VR inputs do not work.
- tachout works ? (eg. DC measurement, test mode; or other indication of p259 working well)
- anything else on p259 ?