Map sensor is reading at the top of its range no matter what
Posted: Sun Jan 29, 2017 9:02 pm
please help. when I datalog in smanager the map sensor reading is maxed out no matter what sensor is used. car does not run, need help.
b18c1, type r head/cams, p28 w/s300v3/. dsm 450cc, .50 trim turbo.
first I had a omni 4 bar installed, car ran on base itr tune but super rich. determined map reading was at the top of its range so i swapped it for a used AEM 3.5 bar, same problem. key on reading of 323kpa. key on sensor unplugged 323kpa reading.
swapped to factory map, still no ambient reading of 100kpa, only 176kpa which is maxed out as well.
good 5v input voltage on map, good ground, a 3.5v on the signal wire with the sensor unplugged.
new signal wire ran with known good wire. no help. 3.5v is coming out of ecu on the d17 pin. im at a loss. i dont know how to fix this, has this happened to anyone? s300 was used in a running car before i plugged it in.
b18c1, type r head/cams, p28 w/s300v3/. dsm 450cc, .50 trim turbo.
first I had a omni 4 bar installed, car ran on base itr tune but super rich. determined map reading was at the top of its range so i swapped it for a used AEM 3.5 bar, same problem. key on reading of 323kpa. key on sensor unplugged 323kpa reading.
swapped to factory map, still no ambient reading of 100kpa, only 176kpa which is maxed out as well.
good 5v input voltage on map, good ground, a 3.5v on the signal wire with the sensor unplugged.
new signal wire ran with known good wire. no help. 3.5v is coming out of ecu on the d17 pin. im at a loss. i dont know how to fix this, has this happened to anyone? s300 was used in a running car before i plugged it in.