in the fuel system what will go bad first? 91 honda accord?

Question

fuel pump relay or fuel pump?

Answer 1

the main relay usually fails on that vintage vehicle when the interior temperature of the vehicle is high as happens when the car is parked in the sun all day. The circuit board of the relay cracks and expands in the heat causing a no-start condition. open the doors and let the interior cool down and the car will usually start (I've seen vehicles that were towed in for no-start and they start right up because the tow truck driver left the window in the car down and vented the hot air.) If that's the case, change the main relay behind the glove box. I can't think of the last time I saw a bad fuel pump or filter on a Honda.
hope that helps

Answer 2

No - O2 sensors don't have sufficient useful selection to impact the overall performance of the engine. Pull the spark plug boots and notice if any of the plugs are swimming in oil. it particularly is a simple clarification for sputter - i'd in all probability sputter if i became into swimming in oil, too. besides, if there is an oil tub around any of the plugs the tube seals (component of the valve disguise gasket set) would desire to get replaced. quickly, nonetheless, the plugs could be bumped off so the oil drains into the cylinders, the plugs wiped clean with brake air purifier and reinstalled. Wait some hours until now commencing the engine so the oil that drained into the cylinders has a wager to empty into the crankcase and would not make a huge cloud of smoke. Code 40 3 ought to recommend a plugged gas clear out, too, which is going to take place first at severe speeds. changing this is a robust thought, even on universal techniques. it rather is meant to get replaced each and every 30K miles yet supplies so little hassle that no-one ever does it. The clear out is placed below the hood, on the firewall, below the vacuum administration container it particularly is in the back of the inlet duct for the throttle physique. it is not stressful to be helpful in from the passenger factor.

Answer 3

The relay is more common, so that will go first, fuel pumps do go, but the relay will before the pump does in most cases.

Answer 4

the fuel filter should always be the first thing that goes bad and should be replace about every 50,000miles after that its a toss up between the fuel injectors and the fuel pump as to what will fail first

Answer 5

the main relay usually go first. it's under the driver side dash a brown square plastic box.

Answer 6

main power realy very very common