Pinning ( detonation) is caused from a combination of air/fuel mixture octane rating and timing. Daisy 188 Bb Gun Owners Manual download there. IT is the spontaneous combustion ( without timed spark) and occurs when the air/fuel mixture is too lean and the mixture is fired by hot points in the combustion chamber Run fault codes to check for faulty o2 sensors /MAP/MAF sensors.
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Try a tank of higher rated octane fuel to see it that fixes the problem. If you are using an E mix fuel then it is not as good in some cars as claimed. Answered on Jun 07, 2014.
Here is a solution that makes sense. A code P0174 may mean that one or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty or faulty. download Jet Boat Repair Manual.
Note: The use of 'oiled' air filters can cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry. There could be a vacuum leak downstream of the MAF sensor. Possible solutions include: In the vast majority of cases, simply cleaning the MAF sensor does the trick.
Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling Inspect all vacuum and PCV hoses, replace if necessary Check for a dirty fuel filter and proper fuel pressure. Read more at: Answered on Jun 03, 2014. download free John Deere Gt245 Shop Manual.
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