Question about Cars & Trucks
Bank 2 knock sensor could be bad,check for broken wires.
Posted on Apr 15, 2015
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Posted on Jan 02, 2017
yo, i finally figured out the speedo jumping problem. i took my towncar to a shop and they told me it needed a new instrument cluster, they replaced that and still the same problem. they narrowed it down to some bunk diodes or something in the alternator. replaced the alternator at Schumacher Goodyear and the price was 275. had all the speed sensors checked and they were fine as well. also this website is very helpful for do it urselfers.
Posted on Feb 19, 2009
SOURCE: Is it possible that the
That is the normal recommendation for a 601. A used PCM would have to be reflashed to work right, so then you have to go to the dealer anyway. Another option is to buy a preflashed PCM from the parts store and install it yourself. They will flash it based on your VIN. This is not as good as getting a complete redo by the dealer, but it will fix the issue.
Last option is to do nothing. The software will revert to default settings, which will result in suboptimal operation. You can check your mileage to see if it's affecting that. It probably will pass any smog tests as long as it isn't setting other codes. It may start to have other symptoms, though. If you have more questions, please let us know.
Posted on Oct 22, 2010
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sensor is commonly located on the engine block and essentially listens
for improper combustion when the engine is running. Engine knock, or
spark knock, is the noise created when the combustion process is erratic
or abnormal. Code p0330 indicates that the knock sensor has picked up a
frequency outside of the factory-set frequency range for the combustion
chamber. The computer uses information from the knock sensor to adjust
the engine ignition timing to keep combustion within the safe zone of
operation. In general, when the knock sensor code is set, the computer
will put the engine into limp mode to help prevent engine damage.
ECU= Engine Control Unit [The Cars Computer]
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