Quote:
Originally Posted by gatos
Either the MAF is dirty or faulty or one of the other sensors might be misbehaving. By disconnecting the MAF, the car's ECU goes on default and uses default map to run. So, you could try using some electrical contact cleaner and spray the MAF to clean it and see if it makes a difference.
Ideally, get the codes read and see what comes up. If it is the MAF that is faulty, then either buy a genuine Volvo or Siemens one, new or second hand. Don't waste your money on those cheap Chinese rubbish ones, that use a simple resistor to imitate the operation of the MAF, because they will work fine in the begging and after a while, the car will start running like crap again
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I second this, I bought a HAAS branded MAF from Euro Car Parts and it ran worse than it being unplugged. To add insult to injury I managed to break it taking it off because even the plastic was nasty so I couldn't even take it back, ended up in the bin.
Last year I managed to get a secondhand one from a local Volvo breaker for £20.
Volvo themselves wanted something ridiculous like £200 for a new one, however Renault were a much more reasonable price (around £70-80). Some new genuine ones on eBay too, same Siemens product.
Volvo part number: 30887504
Renault part number: 7700109812