Why does my car keep retarding the spark?
Reasons a Late Model Vehicle will Retard the Spark. The computer will also retard the spark if the engine is running too hot. Excess heat, coupled with lower octane-rated fuel, will cause the engine to experience spark knock. The spark timing is automatically retarded when knock is detected.
How is the ignition timing of a car determined?
Using an engine idling at 900 rpm further illustration, the piston is moving upward at a speed that the fuel, given the time it takes to burn completely, is ignited 1/16-inch from the top. This would equate to 10 degrees of crankshaft rotation before reaching top dead center to give the fuel sufficient time for a complete burn.
When does a vehicle have to decelerate to stop?
Vehicles must decelerate to slow down and are hard to stop at an exact point. Initiative: A vehicle moves at the start of its driver’s turn. If a vehicle has no driver, it moves on the turn of the last creature that was its driver, or on a turn determined by the GM.
When did the Nissan Pathfinder engine shut off without warning?
On April 4th, 2015 while driving on the freeway with 5 of our grandchildren the engine stopped with no warning. We almost got hit 6 different times while trying to figure out what happened and what to do.
Why is the VDC off on my Nissan Pathfinder?
Vdc off and slip lights come on in dash board has happened multiple time in last four weeks . Nissan dealership had vehicle for nine days and could not recreate problem when picked up from dealership vehicle died on way home . Contacted dealership said nothing they can do without them witness the problem.
Where is the throttle position sensor on a Nissan Pathfinder?
Your Nissan Pathfinder uses a series of complex sensors to report what is going on to the ECU. The ECU then uses this information to adjust the timing, air fuel mixture, and more. When one of them goes wrong, it can lead to stalling for sure. Throttle Position Sensor – The throttle position sensor is typically located on the gas pedal.
What does the rear blower motor on a Nissan Pathfinder do?
The rear blower motor is used to cool the very expensive battery system and hold off battery failure. There are no sensors or feedback monitoring of the rear blower motor to confirm it is operational. The rear blower motor of my Pathfinder has died 3 times without issuing either a service code or any indication of a system failure.