Question about 1991 Honda Prelude

1 Answer

Hi I'm the one with the 91 manual fuel injection prelude and I also wanna say tht my gauges for my gas r past full tank n dnt tell me how much gas I got would tht have anything to do with the fuel tank o and i guess tht when my car back fires some times it has a flame come out my exaust bout 2 or 4 in big not long lasting but this is my first problem with prelude so if anyone could help me tht would help it also needs a new distributor cap idk if tht means anything but thanks for readin

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  • Robert A. Watson
    Robert A. Watson Mar 31, 2015

    Austin, Hondas have a fuel inaccuracy problem that is will documented. The problem is usually the fuel sending unit. This is not something usually replaced by a DIY mechanic. The Haynes Manual for your car may give you instructions on exactly how to do it safely. The wiring for the fuel sending unit goes into the rear of the dashboard and any number of wires may fail. Hondas are notorious for this problem. If the fuel sendor doesn't fix your problem, you will probably have to live with it.

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  • Honda Master
  • 773 Answers

Overfilling your gas tank is not a good thing to do. You see, there is a carbon canister that is supposed to filter the air space that is taken up by the gas as you fill up. It's purpose is to remove evaporative emissions and reduce air pollution. If your car is backfiring, it usually means that your car's engine is running rich... getting too much fuel. I would check your EGR as the ECU has the additional air from the EGR factored in to burn cleanly. If the EGR is faulty and doesn't allow the extra air to get into the combustion chamber, the engine will run rich and backfire. Replacing the distributor cap and rotor, and OEM type spark plugs every two years isn't a bad thing to do. Using long-life DENSO Iridium plugs is a better option for plugs. There is also one of two Oxygen sensors screwed into your exhaust pipe to help adjust mixture with the car's computer (ECU)... these may also require replacing with new ones made by the OEM (DENSO is the OEM). The first thing you need to consider is buying a fault code reader and a Haynes manual for your car. The fault code reader will help you narrow down exactly what may be the problems. Look in the emission control section of the manual to tell you what the fault code numbers mean. Basic fault code readers aren't expensive.

Posted on Mar 31, 2015

  • austin Mar 31, 2015

    I never fill the gas up its bout a half tank but sence I got it its gas gauge is stuck up I will check what u said tho its helpfull and how can I make it retime it self with a tune up haha this is my first prelude I've had to get working on so I'm kinda new at mecanic stuff bout to go to school for it tho

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

tripletauto
  • 1450 Answers

SOURCE: fuel gauge stuck on full

need to replace the sending unit

Posted on Sep 19, 2008

  • 1 Answer

SOURCE: 2002 honda crv fuel gauge moves really slow.

I had the same problem. My battery was going bad. When I replaced it with a new one, the fuel gauge worked fine.

Posted on May 04, 2009

  • 2 Answers

SOURCE: gas gauge reads empty but tank acts like it's full

I also have a 04 with a 1.8L. same problem. I took the fuel regulator off. It is a black box behind the rear tire under car. It only has 2 bolts to take off. After that there is a couple of vent hoses from the tank going to this box. Unplug them and 1 electrical connection. The electrical connection and one vent is connected to a T connection on the box that you can unplug by twisting on the T. Take that T off and look inside where you unplugged the hose on this T. There is a spring and a little plunger inside this tube. The plunger gets stuck. I took a little screw driver and some PB blaster and worked that plunger back and forth a couple dozen times and it unfroze. Put it back together gassed up just fine. I did not look but I was told regulator can be replaced for 200$. But a can of blaster is cheaper.

Posted on Jun 10, 2009

  • 50 Answers

SOURCE: The fuel gauge doesn't read right, makin' low fuel light flash

if the fuel pump is all in-tank; the sending unit built in to the fuel pump is most likely malfunctioning; if so, this will require removal and replacement of the entire fuel pump, sometimes expensive, others not so much

Posted on Oct 06, 2009

Testimonial: "thank you very much for the help"

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SOURCE: Gas tank will not switch and gas runs out of fuel

Hello tlsnyder52: My name is Roger and I will help you. The problem you have is in the fuel select valve. This was a factory recall a few years ago. The recall number is 91S39.What happens is the valve sticks when you switched tanks. This returns all unburnt fuel to the tank you are not using. Basically fills the other tank while the one you are using goes empty. When you fill both tanks the returned fuel has nowhere to go. The fuel has to go somewhere and pushes out the vent. This is not a hard valve to replace. But I would check as if the recall was not performed it may be under warranty recall. The service kit number is F1UZ9B263B and can be obtained from a Ford dealer. Should You need further help please just ask. Please rate the answer. Thank You for using Fix Ya. Roger

Posted on Jan 26, 2011

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