91 accord coil igniter troubleshoot have weak spark

SOURCE: 91 Honda Accord No spark

If the timing belt is damaged(broken or missing teeth) you will get no spark. One easy way to tell is that many times the engine will sound different as it turns over, than it used to.

Dave C

• 1050 Answers
• Posted on Mar 26, 2009

SOURCE: 1991 honda accord "no spark"

There is a relay mounted way up under the dash on the driver side. It is about 1"x1"x2" and it says Mitsuba on it. This is the PGMFI relay, sometimes called the main relay or fuel injection relay. It is very likely the problem. You can buy another one, or there was a bulletin on how to repair it. You need to take it out, pop the cover off, and resolder the cracked solder joints on the pc board that the relays are mounted on. Really not that hard if you have a little soldering experience. If not, just buy another one, about 50 bucks.

SOURCE: Honda Accord one cylinder not firing

The cylinder is not getting fuel, spark or compression. You have already checked for spark on that cable and it appears to be good. Pull the spark plug and see if it is damaged. You can also switch spark plug and cable to another cylinder and see if the miss travels with the plug and or cable. If so, you'll know its the spark plug/cable that is bad.

You can check for fuel by listening to the fuel injector to see if it clicks. Use an automotive stethoscope or a long screwdriver--put the metal end of the screwdriver on the injector and the other end against your ear and listen to the injector while the engine is cranking or running. You should hear it click for each time it pulses fuel.

If both fuel and spark are good, then you are probably missing compression in that cylinder. You (or a mechanic) will need to pull all the spark plugs and do a engine compression test with a compression test/gage set. Lots of things can lead to poor or zero compression including: broken piston rings, burned/stuck/broken valves, cracked cylinder head or engine block, cracked pistons,etc.

Because one cylinder is "dead", the engine has to work extra hard to start and run against a cylinder that is dragging it down. If you find low/no compression in that cylinder, you will probably have to remove the cylinder head to correct it. A big expensive job. It may be cost effective to replace the whole engine with a rebuilt one.

SOURCE: 94 Honda Accord

my d4 is blinking also from time to time what can i do james bklyn

SOURCE: what is a ignition output signal on a 1990 honda

Most of the time these distributor come with the ignition module did your, if it did and it has not been that long and is still under warranty, have it replace, if it did not come with one replace module.