Is the vehicle driving fine or do you actually have an issue? If there's no issue with the MAF plugged in or unplugged, just assume it's fine.Quote:
Originally Posted by northiam
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Is the vehicle driving fine or do you actually have an issue? If there's no issue with the MAF plugged in or unplugged, just assume it's fine.Quote:
Originally Posted by northiam
Fuel consumption has gone up for no apparent reason, everything else checks out so I suspected the maf ?Quote:
Originally Posted by twr7cx
Was thinkin. The AAP sensor (filter airbox) has a constant 5 volt supply from ecu. Could I tap that 5V into terminal 2 connection on the maf to fool the ecu to max airflow thru the maf and see how shes goes?
I think you are better off unplugging MAF and letting the ECU work on default parameters. I doubt very much the Full Tilt airflow is going to be what is required for most driving conditions.
cheers
Paul
Purely as a test to prove or disprove maf and fuelling etc? What conditions would one expect? Overfuelling, black smoke...Quote:
Originally Posted by OffTrack
After more research on here I realised that the stutter/surging I get at around 2000-2250rpm & 80-90km/h is due to the stuffed MAF so I'll definitely be getting a new one (genuine Siemens/VDO, $185 from TR Spares).
The stutter sounded like the lack of or default MAF readings was confusing the auto & it didn't know whether to **** or go blind & was locking & unlocking the torque converter over & over at the above speed & rev range.
Found on another post that RAVE mentions this as a problem associated with a stuffed MAF.
Alex
The effects of disconnecting the MAF are well known and well documented on the forum. The ECU uses a default value and drives reasonably well compared with a failed MAF.Quote:
Originally Posted by northiam
Piping 5v straight back into the ECU will, at best, cause an out of range fault.
cheers
Paul