2002 jetta 1.8 running rough

Asked by brettgossel Sep 05, 2021 at 04:33 PM about the 2002 Volkswagen Jetta GLS

Question type: Maintenance & Repair

I have a 2002 jetta 1.8 that runs rough, did a fuel pressure test when it was
running and obviously running rough, but the gauge read 0 psi, that would be
the fuel pump correct?

2 Answers
40,075

beatupchevy answered 3 years ago

I'd say the gauge isn't accurate but fuel pressure may have well been low and it read 0 instead of say 14 psi , Nothing will run at 0 psi . The problem may be the regulator or filter , check for good power/ground connections

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TheFackler answered 3 years ago

As mentioned, your gauge is likely broken or not properly set up. "Nothing runs at 0 PSI" I had a 98 Jetta, it had 2 fuel pumps from factory, 1 in the tank and one inside the right fender... 2 Filters one in the tank one in the rail... try the filters and the regulator first, they would cost much less in parts and labor. Regards

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