Close
Car Questions
RepairPal is your advocate for car care advice and guidance

OBD CODE P0422 AND PO304

(2000 Volkswagen Jetta)
in Staten Island, NY on May 27, 2011
I JUST GOT A DIAGNOSTIC REPORT FOR OBD PO422 INDICATING PROBABLE CAUSES, RICH AIR /FUEL RATIO ,AIR LEAK NEAR REAR HO2S > OR FAULTY FUEL CONTROL HO2S = HEATED OXYGEN SENSOR
WHAT DOES THAT MEAN AND CODE PO304 WHICH INDICATES CYLINDER 4 MISFIRE IGNITION SYSTEM FAULT ,FUEL INJECTOR FAULT SO WHAT DOES ALL THAT MEAN AND HOW MUCH WILL IT COST ME?
Displaying 1 answers & 0 comments
Popular Answer
on May 27, 2011
Hi, I knew a VW professional tool, which is U281, and it can read and erase trouble code in VW car. it is cheaper and you can DIY.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
My 2011 Vw Jetta 2.5l when its cold out has been starting rough. When I start it, it starts and right after chuggs an...
Sometimes when starting car and press on brake, the pedal does not push in and car will roll a little either going fr...
Didn't find what you were looking for?