WhiteM57

Good news... all sorted, continuity issue on -ve wiring from ecu to map sensor plug, rewired, soldered and taped, road tested & back on song !

Just to add.... I have some live data readings from the boost map showing a definite overboost Tickover Desired boost 1040mb Actual boost 1118mb 2500rpm Desired boost 1162mb Actual boost 1458mb 4000rpm Desired boost 1438mb Actual boost 2458mb After substituting the map sensor with the original again the figures are slightly reduced but the gap between desired and actual is pretty much the same This morning Im going to attempt a rewire of the map sensor back to the ecu Any thoughts guys? Cheers M.

Thanks Jed !

Hey guys…. Sorry to weigh in with such a lengthy, and presumably common post but Im haemorrhaging money (and sanity) at an alarming rate. Octavia 2.0 BKD140, 2010 with the dreaded P0238. Actual reading…P0238 Turbocharger boost pressure sensor circuit high - intermittent also I had a P1592 Boost Pressure sensor coherence between atmosphere and boost pressure this has since disappeared and not returned ….yet! The story so far… Turbo replaced with new unit (guaranteed re-man unit from reputable outlet) EGR valve replaced with new unit, flow restrictor plate fitted too in an attempt to keep things clean, map sensor replaced with new unit and maf substituted with known good unit. All earthing points cleaned and re-made and map sensor wiring checked as far into loom as possible. Although things have improved slightly it still throws the code around 2800 rpm. I have checked as well as I can all vac pipes & and intercooler pipes & hoses. What puzzles me though are the live data pressure readings as follows…. Engine off, Ign On Atm.Pressure 979.2 mb Inlet Man Pressure 1152.6 mb Engine Running T/O Atm.Pressure 979.2 mb Inlet Man Pressure 1162.8 mb Engine Running 2krpm Atm. Pressure 979.2 mb Inlet Man Pressure 1642.6 mb am i right in thinking atmospheric and manifold pressure should be the same when not running? Im guessing someone has had these issues before? would be eternally grateful if anyone give me any pointers before I nail up the noose Thanks Mark

New owner of Octavia ll Estate.....a world of heartache so soon Lots to ask in due course Ill let myself in gently before I ask M.