JGJetta
Member
My 2002 TDI Jetta with the 1.9 engine suffers the following ailments. In fact, it has been suffering a lot since I purchased it this summer from a private dealer in RI. Check engine light and coil/glow plug light are on and the scanner revealed this data: Engine code P1246. Haynes
Manual stated needle lift implausible signal/needle lift sensor circuit
range performance. We (my sweet mechanic and I) are looking for voltage reading, if any, at wire plug pigtail. What is the resistance/ohms value or ranges at the sensor? All brake lights are working fine. When needle lift sensor is unplugged at number 3 injector there is sound/shake in engine. When plugged back in, engine smoothes out. Wire from needle lift sensor to computer/ECU appears to be fine. Have not unplugged pin connector at computer/ECU yet which is under windshield washer cowl. Recently cleaned the injectors with a fuel additive which made the engine light disappear. Any thoughts about these symptoms and possible cures? Thank you for reading and offering your diagnoses.
Manual stated needle lift implausible signal/needle lift sensor circuit
range performance. We (my sweet mechanic and I) are looking for voltage reading, if any, at wire plug pigtail. What is the resistance/ohms value or ranges at the sensor? All brake lights are working fine. When needle lift sensor is unplugged at number 3 injector there is sound/shake in engine. When plugged back in, engine smoothes out. Wire from needle lift sensor to computer/ECU appears to be fine. Have not unplugged pin connector at computer/ECU yet which is under windshield washer cowl. Recently cleaned the injectors with a fuel additive which made the engine light disappear. Any thoughts about these symptoms and possible cures? Thank you for reading and offering your diagnoses.