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S80 '98-'06 / S60 '00-'09 / V70 & XC70 '00-'07 General Forum for the P2-platform S60 / V70 / XC70 / S80 models |
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Wastegate solenoid 0244Views : 2096 Replies : 13Users Viewing This Thread : |
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Oct 21st, 2018, 10:50 | #11 | |
Junior Member
Last Online: Mar 25th, 2023 13:30
Join Date: Nov 2013
Location: Paderborn
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map in kpa & maf in g/s
Quote:
Hello Dave, yes the MAP is in kpa and the MAF is in g/s. I was just revving the car whilst stationary. Is that the correct test method? SK
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2003 V70 2.4 D5 |
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Oct 21st, 2018, 12:22 | #12 |
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Last Online: Mar 25th, 2024 23:28
Join Date: Aug 2013
Location: Emsworth,hants
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Please tell me what MAP you are reading with the ignition on with the engine not running,
Then with the car at running temp, at idle what is the maf reading, Dave |
Oct 21st, 2018, 12:36 | #13 |
Premier Member
Last Online: Mar 25th, 2024 23:28
Join Date: Aug 2013
Location: Emsworth,hants
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ok sorry I have just looked again
your map reading is wrong for engine off, ignition on, what is the atmospheric pressure reading for where you are ? has the car been re-mapped ? Has it got a tuning box fitted ? is the maf sensor standard Bosch make, not cheap after market , Dave |
Oct 21st, 2018, 13:24 | #14 | |
Premier Member
Last Online: Mar 25th, 2024 23:28
Join Date: Aug 2013
Location: Emsworth,hants
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Quote:
you should be getting about 100-102 kpa MAF reading, with the engine off you should NOT be reading 11.8 you should be reading 0.0 -0.1 your reading of 16.8 at idle and the same at 1000rpm are wrong , at 1000rpm it should read higher, not the same, can you please test this again, and see that the idle is at 700rpm, can you get hold of another reader, have you got an android phone/tablet if so get a Bluetooth adapter and use the Torque app, by both of these test I would say that your map sensor and your maf sensor are bad, but you need to check that it is not the reader that is reading wrong, when you are taking the reading with the car on but engine of, is the reader definitely talking/connected to the ECU ? Can you re-run these tests before starting the engine, so just have the key on Pos ll, Dave |
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