Question about 1993 Acura Legend

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1990 Acura Legend, location of main relay for fuel pump

I have intermittent starting problems. I have replaced spark plugs, plug wires, alternator, distributor, igniter, and fuel pump. Factory owner's manuel does not show location of main relay for fuel pump. Please, where is it??? Thanks! John

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Looked it up online, looks like its in the underhood fuse box but couldn't get a good diagram that shows which relay number it is. the website i use is sort of dependent on the manufacturer, apparently acura did not feel like sharing that info. hope that helps

Posted on Jun 17, 2009

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The main relay is underneath the dash by the fuse box but up a little higher. I am having. the same problem.Let me know what you find if you are able to solve it. lorenapatterson@myway.com

Posted on Nov 06, 2011

  • lorena patterson Nov 06, 2011

    The main relay is underneath the dash by the fuse box but up a little higher. I am having. the same problem.Let me know what you find if you are able to solve it. lorenapatterson@myway.com

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How do i get to the main fuel pump relay on a 1990 acura legend

Posted on May 12, 2011

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If relay does not fix problem check cam sensor and crank sensor

Posted on Jun 17, 2009

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2 Answers

My 91 Acura legond moter cranks over but won't start


Engines need 3 things to run-spark, compression and fuel/air. Check the simplest things first. When you turn the key and the warning lights come on, does the check engine light come on? It should turn off in 6 seconds, if everything's ok. I Check the air filter, make sure it isn't plugged up. Take off the oil fill cap, and look in. I believe you can see the rocker/cam, use a flashlight. Have someone crank the engine with the key, see if the cam turns, rocker moves. If not, broken timing belt. Next remove an igniter, put a plug in it, have it plugged in and hold the plug near a ground. Have it cranked, check for spark. If no spark, it needs more professional diagnostics. If yes, Fuel is left. If you sit in the drivers seat, windows up and quiet, turn the key to run, all the warning lights come on. The fuel pump runs for 2 seconds, a low hum from the back. You can usually here it if it is quiet around you. (Just because it makes noise, doesn't mean it's good.) Your car also has a main relay that powers the fuel pump, a common failure. Last thing to try is starting fluid sprayed into the throttle, throttle open 1/2 way, while someone cranks.
One of these should lead you to the failure. Note: the main relay is powered by the ignition system, except for that initial 2 seconds. So if there is no spark, the fuel pump won't work either.

Oct 23, 2014 | 1991 Acura Legend

2 Answers

When the car is hot, and you turn the key, the check engine light goes out, but the car will not start. The fuel pump has been changed, but the problem is still there. What should we do?


It is your main relay. Go to Youtube and search acura legend main relay. The main relay is located by your feet above the steering column. The solder point in the relay are weak due to temperature in the car while sitting and the outside temp is high. Also do a google search. several schematics on location. I would tap mine while turning the key and it would fire right up. Best solution is to remove and resolder the joints that are bad. Visually you will know.

Tim D.

Jun 28, 2010 | 1990 Acura Legend

1 Answer

How do u reset a fuelpump for a 92 acura legend some one told me theres a botton or could it be the relays my fuel pump dont start and one of my relays get realy hot


sounds like your pgmfi main relay has gone bad,pretty common on this car.it is located above the drivers knee bolster panel. 1"x1"x3" retangular box single plug

Dec 27, 2009 | 1992 Acura Legend

3 Answers

1993 Acura legend wont start acts like it needs fuel. Sat for a couple of days and started and ran for about a week and then wont start and acts needs fuel. Is this a fuel pump or could it be a relay...


SOUNDS LIKE A PGMFI MAIN RELAY IS BAD, PRETTY COMMON ON YOUR CAR. LOCATED UNDER DRIVERS DASH AREA. YOU CAN GET AT ANY ACURA DEALER(VERY INEXPENSIVE SO I RECOMMEND TO GO DEALER ONLY ON THIS PART)

Jul 05, 2009 | 1993 Acura Legend

2 Answers

Intermittent starting problem and now it will not start.I cannot hear fuel pump. ive been told to replace main fuel relay. I replaced ignition switch a year ago.


Your starting problem may be a clogged filter or a bad fuel pump. You are not having problems with the engine cranking I assume.

Jun 21, 2009 | 1992 Acura Legend

5 Answers

91 acura legend will not start


Take off the hose to the throttle body and look for any obstructions. This has been know to cause performance issues similar to those described

May 07, 2009 | 1991 Acura Legend

2 Answers

1993 Acura - intermittent fuel pump operation (no start)


HI...
The common cause of the problem that you related.
Is the FUEL PUMP RELAY " Called MAIN RELAY.
Is located : left side under the dash.
Is a BIG relay gray colour. with a connector of 7 or 8 wires.
I recomend replace the relay.

And letme know if you solve your problem.

I hope this information work on your problem.
Thank you for use fixya.

Jul 25, 2008 | 1993 Acura Integra Hatchback

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