Question about 1992 Honda Accord
First make sure your new main relay is working. After you turn the key two clicks, point your ear towards the back seat and see if you can hear the fuel pump running. It should run for about two seconds (or as long as the check engine light says on) and then go off. You should hear the relay click under the dash after the check engine light goes out, and that will be the relay turning off the fuel pump. If don't hear the pump running or the click of the relay, the new relay might not be working. If you hear the click and not the pump, the you probably have fuel pump issue. Check fuses first!
If both of those check out, then you need to make sure you have spark. Get a spark tester ($7) and a spark plug gapping tool ($1) from you local auto parts store (oreilly's, autozone, advance auto parts, etc), but don't get one of those in-line spark testers because it will be really hard to get the wire all the way down the spark plug tube and back on to the spark plug. Get one like the pic below.
Set the gap on the tester between .039" and .043" using the gaping tool, then connect one of the spark plug cables to the tester, and then use the clip on the tester to connect it to a solid ground on the car. There shoud be a good place on the right side of the valve cover on top of the engine...you should see a small wire bolted from the corner going to the power steering pump. Put it right on the bolt. Give the car a few cranks and see if it sparks. If not, you probably have a bad coil or ignitor, both are inside the distributer. There are ways to check for those if they are bad, but that is for another post. One other thing to check is for corrosion on the contacts inside distibuter cap. You can either scrape it clean or just buy a new cap & roter.
The D4 light is from the TCU (transmission control unit)...letting you know that there is an issue somewhere. I already have another post here about how to diagnose it.
Posted on Oct 08, 2010
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Posted on Jan 02, 2017
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