RPM Issue while refilling fuel :S
#1
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hi Guyz quite few times i noticed when i am refilling fuel for my lexus ls430 and the rpm goes up to 2,2.5 and comes back down to 1 or less and i get that feeling like the car is going to switch off but no it kinda vibrates a bit for a few seconds while filling the fuel and then its fine and normal ...what could be the reason for this?
need spark plugs replacement or ?
need spark plugs replacement or ?
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#5
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Turn the engine off when refueling and the problem will go away. I believe cars are designed to have sealed fuel systems when they are running. You are probably confusing the engine control logic by having the fuel cap off.
#6
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Not sure why OP is even running it with engine on, but hey... it's his gas that he's running.
#7
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1. Refilling the car with engine running is dangerous - in some states it is actually illegal to do so 2. The car's air/fuel system is designed to be run as a sealed system so with gas cap open it is not running as designed.
Not sure what the benefit is of running your gas engine while filling with gas?...I guess the main objective would be to keep the heat or AC going. Definably not worth the small but real risk of causing some kind of fire. With the engine running the Cat under you car can run at 800 degrees F plus - the flash ignition point of gasoline is -43 degrees F. A gasoline pump nozzle fire will definitely put a crimp in your day.
Not sure what the benefit is of running your gas engine while filling with gas?...I guess the main objective would be to keep the heat or AC going. Definably not worth the small but real risk of causing some kind of fire. With the engine running the Cat under you car can run at 800 degrees F plus - the flash ignition point of gasoline is -43 degrees F. A gasoline pump nozzle fire will definitely put a crimp in your day.
Last edited by Jabberwock; 06-04-11 at 05:48 AM.
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#8
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hi Guyz quite few times i noticed when i am refilling fuel for my lexus ls430 and the rpm goes up to 2,2.5 and comes back down to 1 or less and i get that feeling like the car is going to switch off but no it kinda vibrates a bit for a few seconds while filling the fuel and then its fine and normal ...what could be the reason for this?
need spark plugs replacement or ?![Uhh...](https://www.clublexus.com/forums/images/smilies/1387914497.gif)
need spark plugs replacement or ?
![Uhh...](https://www.clublexus.com/forums/images/smilies/1387914497.gif)
#9
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