Could be your theft system
SOURCE: Chevrolet captiva 2.0 lt poor mpg captiva has
I also have a Chevy Captiva 2L Diesel but with the auto box. The MPG on that one is abysmally bad! I bought it a few weeks ago with just under 30K miles on the clock (2007 model), and it returns around 230 miles on a full tank! That's around 17 MPG and probably on par with a Hummer!!
I was expecting the auto box to be less efficient than the manual of course but not to consume twice as much. Anyone out there with any ideas as to why this could be? I was actually already checking under the car to see if it loses fuel... We live in the suburbs and our trips can be considered a mix of urban and extra urban (they are admittedly on the short side and from a cold winter start; still, this doesn't justify the extremely low MPG). The car seems adequately powered for its weight and considering the small'ish engine and auto box.
Thanks!
SOURCE: Chevrolet Captiva reversing light switch
The 10A BACKUP fuse in the fuse block - underhood supplies ignition positive voltage to the park/neutral position (PNP) switch of the automatic transmission. When the transmission is placed in reverse, the switch supplies voltage to the back up lamps and the inside rearview mirror. The back up lamps receive ground at G401 and G403.
SOURCE: Chevrolet captiva ltz turbo diesel cranking but wont start problems related
problems include
insufficient cranking speed
incorrect fuel pump pressure to the injectors---25,000 psi--
crank position sensor problem
glo-plugs inoperative
air in the fuel system
fuel tank not venting
ECM problems
run the fault codes to find the area of the failure
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