Question about 1994 Acura Legend
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Posted on Jan 02, 2017
'Fires' implies that you have spark and fuel; I think you mean that it cranks with the starter.
Checking these separately is not difficult, you need to remove one spark plug lead and insert a screwdriver, then position the wire and the 'extension' so that the shank of the screwdriver is close to, but not touching some metal related to ground. This is about any exposed metal on the engine.
When cranking, during each revolution you should see a healthy blue spark between 1/4" to as much as an inch.
This tells you that the system supplying the high voltage is at least working.
Of course that alone doesn't tell you that each plug is getting spark but to do that, you would need to remove each plug wire from the plug in succession and test them individually.
Generally, if you have a single failed plug wire or plug, the engine will start but miss noticeably and it isn't not likely that all plugs and wires fail at the same time.
Checking the fuel supply depends a little on the delivery system. I think your car does have fuel injection so look for a fuel 'rail' that runs parallel to the engine. This is a length of pipe to which the injectors are attached and delivers gas to them. Most of the fuel rails will have a pressure relief valve on them that looks similar to a tire valve. After cranking for a few seconds, depressing the center pin should result in gasoline squirting from it. If it doesn't, you may have a failed fuel pump or a severely clogged inline filter. A bad fuel pump is more likely.
There are other points of failure such as a defective ignition switch but these will not normally fail instantly but become unreliable first.
When a recently run engine refuses to start, it is sometimes due to too much fuel in the cylinders (flooding) and this can cause plugs to fail to fire and can be alleviated by depressing the accelerator pedal completely to the floor and leaving it there; don't pump. This causes more air to enter the engine without causing additional fuel to flow and will, after cranking for 30-60 seconds, dry the plugs out and allow them to fire again.
The fuel pump in your car may be fused so I would check the fuse box for any visibly blown fuses too.
Posted on Nov 17, 2008
SOURCE: 91 acura legend will not start
check all ignition fuses and pcm fuses.if all is good check .check the igniter unit .all plugs wires and plugs and coils.if every thing check out good.scan it to make sure the computer is working.
Posted on May 07, 2009
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
turn the ignition key to the acc or lock position with the odometer reading showing.
while holding the trip/reset button turn the ignition to the on position. light should flash and go out!
reset done. if you have any more issues plese ask. good luck
Posted on Sep 25, 2009
Tips for a great answer:
Acura Coupes and Sedans 1994-2000 Repair Information
This relay is located behind the dashboard's lower cover. It consists of two individual relays. One is energized whenever the ignition is ON , thus supplying battery voltage to the Powertrain Control Module (PCM). This relay also supplies voltage to the fuel injectors, and power to the second relay. The second relay is energized for two seconds, when the engine is turned ON , to power the fuel pump.
See Figure 1
Fig. Fig. 2: PGM-FI relay terminal numbers
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