|
surfpangea
Join Date: Jan 2008
Location: cathedral city california
Posts: 238
|
If the charging pressure gauge in the tachometer fails, check all wire connections on the tachometer or charging pressure sensor against the wiring diagram.
Pull off wire on charging pressure sensor.
Turn on ignition.
The charging pressure gauge needle must deflect fully.
Hold the disconnected wire against ground. The needle must return to zero.
If the instrument meets these requirements, the cause of trouble will be found in the charging pressure sensor.
Otherwise the gauge would be defect, and the tachometer would have to be replaced.
Note
The resistance of the charging pressure sensor (measured between the connecting lug and
housing) must be between about 5 and 13 ohms at 200 C and atmospheric pressure.
__________________
MB CL 600 6liter V12 daily driver
86 Corvette Stage 1 Nos (sold)
78 911sc Targa (sold)
77 930 stock 3.0 gsf header ,borla exhaust,gt30 BB turbo, V-band, full bay IC,WMI, 46 mm Adjustable waste-gate,Zeitronix wideband, Intergrated Car pc, Winlog interface Beta
|