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Old 24th November 2019, 14:44   #52
Rsnail
Gets stuck in
 
Rover 75 Saloon

Join Date: May 2015
Location: Essen (Oldenburg), Germany
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Hooked up my scanner and the following values looked interesting to me:

Intake manifold pressure: steady at 40kpa/12inhg which seems a little low to me, I read that it normally should be about 16-20inhg. When revving on idle it goes to 90kpa then drops to 20kpa when letting go of the pedal and then stabilizes at 40 again.

Air mass meter 65mg/stroke at idle

Also, the value for indication rich mixture bank 1/2 constantly switches to on-off-on-off and so on for both banks

Also, another thing I noticed now, when starting the car from cold it idles at about 1500rpm and as the engine warms up it slowly goes down, but it takes a few minutes..

If anyone has some ideas or can compare these values please let me know.
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