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Re: check engine light on, code p0720 what's next
The speed sensor is located on the transaxle and lets your computer know how fast the car is traveling. Before replacing the sensor check the wiring and make sure there is a good connection. As for the misfire codes, yes a tune-up is a good starting point and is part of scheduled maintenance anyway. Know however that there are many things that can cause a misfire and one that can be detrimental to the engine is a misfire caused by coolant entering the engine. Verify that your coolant level is not decreasing.
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If the check engine light is on? Take it to your local parts store for a free diagnosis. Usually it needs a tune up,spark plugs, cap and rotor if applicable. I don't do audi very offend but this is a start. good luck!
P0300 is multiple misfire. The corrective action for this code would be to test your fuel pressure and the injectors. P0301, P0302, P0303 is saying in certain cylinders there is a misfire. There are two different engines so I wasn't sure which one you have and couldn't give you the correct testing procedures for the coils. P0341 is saying the camshaft position sensor readings are bad. Again I am unable to give you the correct tests to check this due to not knowing your engine size. Feel free to email me at email@example.com with detailed information about your vehicle and I will be happy to email you the testing procedures to narrow down the problem and help you solve it.
P0300 Random Misfire Detected P0301 Cylinder 1 Misfire Detected P0302 Cylinder 2 Misfire Detected P0303 Cylinder 3 Misfire Detected according to this fault codes first mark ignition coils 3 ---------------- 6 2 ---------------- 5 1 ---------------- 4 RB-------------LB this right banks and left bank, please remove Ignition coils with lids and spark plugs from right bank and swap with left bank, if fault code change as P 0304 Cylinder 4 Misfire Detected P 0305 Cylinder 5 Misfire Detected P 0306 Cylinder 6 Misfire Detected You can Identify it's a faulty ignition system then next swap ignition lids from ignition coils be careful each coils have two lids one short and other long bit deference and when you remove and fix it to the car keep in mind correct order because each coil two different fire for two spark plugs don't mix up, if you mix it can create the fault code.if you detect any fault ignition coils or spark plugs or lids replace that and also whether god or bad recommend to replace spark plugs, find the right that's most important thing, if this way couldn't found the any ignition fault next step is check fuel presser, when the engine running fuel presser must be around 4.5 bar without engine running must be 4 to 6 bar if the fuel presser too low need to check two different things one is fuel pump other is fuel injectors, in this case you can swap injectors from right bank to left bank and find is the injectors leaking, if not leaking faulty fuel pump.is this information helped you? if yes please leave a comment,
P0300 is a multiple cylinder misfire and is used by all OBD2 vehicles on the road in the USA that is 1996 and newer, P0301 is cylinder number 1..P0302 is # 2 and so on...that tune up may have been needed and parts and labor are expensive..you have a cylinder that is misfiring and the cause must be located..possible causes are intake manifold air leaks..secondary ignition problems..fuel injectors..plugged EGR system if it has one..failed head gasket..burned or cracked valves..I have seen some crazy stuff..you need a tech on that one not a mechanic.
Hello I need a help. I have 1999 lincoln town car 4.6L V8.They have check engine light on. P 0303 cylinder 3 missfire. I was changed spark plugs,fuel filter. check compression test 150psi. fuel pressuer 50. swiching cylinder 1 to 3 fuel injector and coil. but they still have engine code