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N20, but hope its of some help
CELs, start up stumbles/stalls, and poor fuel economy were getting quite frequent with our 2013 N20 with 85,000 kms
Error code pulled was:
104301 Absolute pressure sensor, intake manifold plausibility, overrun: pressure too high
Cleaning the MAF and TMAP did not help.
What we did do was spray an almost entire can of CRC GDI Intake cleaner into the TMAP hole, that seems to have helped.
Three weeks on no CEL after the first run following cleaning procedure. Seems to run smoother (could be in my head). Will keep monitoring.
Assortment of previous issues in the past year:
-plugs and coils causing misfire (cheap Bosch set - probably only had about 3000kms on them before I went back to NGK and Bremmi)
-potentially(?) wonky tuning module causing misfire/errors
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