Question about Cars & Trucks
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: 1999 vw jetta 2.0
Sounds like two problems. P0300 and P0303 are possibly spark plugs. They could be a coil pack but I'm leaning toward a spark plug problem because of the other two codes - they're indicating O2 sensor problems. If the O2 sensors are screwed up, the car reverts to preprogrammed, rich fuel maps that send excessive fuel through the engine. The reasoning is, if the ECU can't trust the O2 sensors to determine how much fuel to burn optimally, it'll pump a bunch of extra fuel through the engine to keep it safe. Having too little fuel (aka running lean) can destroy an engine, so the ECU plays it safe and runs rich (too much fuel) instead. The consequences of rich running are relatively minor compared to lean running, but can and do tend to create excessive carbon buildup on the catalytic converter and O2 sensors, as well as fouling spark plugs.
First thing to do though is to swap the wires on your coil packs and see if you end up with a misfire code for the same cylinder #3. If you do, then it's the plug or wire. If it moves, it's the coilpack. Replace whichever part is faulty. You'll probably need oxygen sensors too, before you can clear all the codes.
Posted on Sep 02, 2008
SOURCE: 2005 dodge diesel codes!
the Code P0340, Camshaft Position sensor problem or Loss signal.
The Code P0341, Camshaft Position sensor Intermitent Signal.
The First step you should do is : Locate the Camsahaft sensor,
Is located On Right Front of the Engine..
It use a 3 wires Connector.
3-- Dark blue/Gray.
After you found it. Inspect the Connector. If is The connector in good condition.
Replace the Camshaft Position sensor...
Ok... I hope this help on your problem..
Thank you for use Fixya...
Posted on Sep 27, 2008
Do you mean the OBD II connector? If your car is an early 99 then it's a MKIII and it's located under a little door on the dash under the heater controls HERE. IF it's a late 99 model then it's a MKIV and it's under the dash at the far left corner, just above the hood release lever.
Posted on Feb 08, 2009
This is an Evaporative Emissions System code - indicates the computer has checked the system and concludes there is a leak in the system (small leak).. could simply be a loose fuel cap.
Posted on May 28, 2009
po341 is camshaft position sensor A bank 1 ckt range/perf and po122 istps/pedal position sensor A curcuit low input this is throttle position switch on side of throttle body!
Posted on Jun 17, 2009
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