  We report on the results of a Chandra observation of the source
IGRJ16327-4940, suggested to be a high mass X-ray binary hosting a luminous
blue variable star (LBV). The source field was imaged by ACIS-I in 2023 to
search for X-ray emission from the LBV star and eventually confirm this
association. No X-ray emission is detected from the LBV star, with an upper
limit on the X-ray luminosity of L$_{\rm 0.5-10 keV}<2.9(^{+1.6}
_{-1.1})\times10^{32}$ erg/s (at the LBV distance d=12.7$^{+3.2} _{-2.7}$ kpc).
We detected 21 faint X-ray sources, 8 of which inside the INTEGRAL error
circle. The brightest one is the best candidate soft X-ray counterpart of
IGRJ16327-4940, showing a hard power law spectrum and a flux corrected for the
absorption UF$_{\rm 0.5-10 keV}$=$2.5\times10^{-13}$ erg/cm2/s, mplying a
luminosity of $3.0\times10^{33}$ d$_{10~kpc}^2$ erg/s. No optical/near-infrared
counterparts have been found. Previous X--ray observations of the source field
with Swift/XRT and ART-XC did not detect any source consistent with the
INTEGRAL position. These findings exclude the proposed LBV star as the optical
association, and pinpoint the most likely soft X-ray counterpart. In this case,
the source properties suggest a low mass X-ray binary, possibly a new member of
the very faint X-ray transient class.
