hp006 Posted December 1, 2009 Share Posted December 1, 2009 (edited) I have just fitted the map ecu. It was fine this morning but now i have an idelling issue. When the car is still it wants to stall. When the car is put into gear it pulls ok but there is hesitation at around 1500rpm and at 2500rpm. Anyone got any ideas as to what may cause this? I have replaced the fuel pump and all the other bits required. Have an aem boost controller set to 1.3 bar. It is a uk tt I have downloaded the supra tt 550cc map from the website and cant imagine it being far out to make the car behave like this. The IAT cable has been put just behind the air filter as there forum suggested I did read of the website it may be an issue with the stock o2 sensor and map ecu fighting over control for the sensor? This sound feasible? Where is the stock o2 sensor? When i had the car decat there were no sensors to take out of the exhaust? Is the sensor just below the turbos on that section of pipe? Anything i can do to resolve this? Edited December 1, 2009 by hp006 (see edit history) Quote Link to comment Share on other sites More sharing options...
Terminator Posted December 15, 2009 Share Posted December 15, 2009 Have you contacted the supplier for advice? I don't think there are very many Map Ecu users this side of the pond, so help may be limited. Is the map, you have down loaded, for a UK car? Quote Link to comment Share on other sites More sharing options...
Ian C Posted December 16, 2009 Share Posted December 16, 2009 If the map is for a J-spec engine with a 550cc injector upgrade, it's going to rupture your UK spec that's mapped for 550cc from the factory. It'll be pulling 20% fuel and also thinking you've got a MAP sensor isntead of a MAF. Quote Link to comment Share on other sites More sharing options...
bondango Posted December 16, 2009 Share Posted December 16, 2009 As said, There are 2 Install methods for the ME2, one for UK/Euro/USDM and another for Jspec Dependant on the above you will need load a basemap dependant on wether you are Jspec or UK spec. Even the Supplied uk/usdm 550cc basemap needs a bit of work for idle and cruise. There are no 550cc basemaps for the jspec, but i can send you one if you need it which should get the car started. need to know if your using the GM boost Soleniod and which wideband your running. If you have no wideband fitted i would advise to get one before going any furthur as its a necessity when tuning the mapecu as the stock sensor is useless for this. Make sure your running V3.1.3 (available from mapecu.com) of the mapcal software and that you have Updated the ME2 firware to the latest version (Control-W from with in Mapcal) Quote Link to comment Share on other sites More sharing options...
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