Question about 1999 Volkswagen Jetta
Power, shook, sputtered and died last evening and could not restart without dying quickly again. Please, bare with my mechanical ignorance with my description. We came up with code PO102, indicating low flow with the MAF? We also came up with the 302 code and another one indicating misfires on 2 cylinders. The Autozone guys suggested we do a "resistance test" before before going through the cost of buying and installing another MAF sensor unit. I believe the resistance test came up with a 7.5 or .75 or maybe it was a 75 reading, as it is all greek to me. If it was something simple like a fuel filter, we wouldn't be getting the misfire codes, correct. Any help is appreciated, as I probably want to get it fixed to sell.
I would need to know what car you have for better answers, but some problems are the same no matter what car you have. If it hasn't been done in a long time I would replace the plug wires and plugs first. Besides you can only improve your gas milage by doing so. I would purchase a CHILTON, this is a maintenace manual with pictures and step by step procedure. Then I would take it in for another testing. Then they can give you better codes. It could be missing on 2 cylinders because of spark plugs, fuel injectors, many other reasons. The MAF sensor is very expensive and I would check everything else before I replaced that.
If you can replace the plugs and wires, and distributor cap and rotor first, then let me know more about your car make modle year what engine you have I can give you more advise.
Posted on Feb 27, 2009
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