Ok heres the deal with this 1989 carburated Accord:
Check all vacuum lines for leaks
changed plugs.wires, cap and rotor.
the problem is that the #1 cylinder isn't firing properly, if i pull the plug wire , the engine doesn't change a bit, with the plug out of the motor with it grounded to exhaust manifold ,it has a very weak spark sometimes no spark at all.
All replys welcome............THANKS
you may want to clean the threads on in the hole for the spark plug. You may also want to add/replace your factory ground wire...
Mine is a 2 guage wire from the negative termnal... and I bolted it to the head with one of the larger bolts that was used to hold a A/C hose bracket I think.
also make sure the wires and plugs have a snug fit. Like sometimes spark plugs come with little screw on caps that come loose... or a wire end has expanded too much and is loosely touching the spark plug.
- llia
diffenitly check the little cap on the spark plug it self ! , also i would take out the distributer cap and clean it or replace it !
MIKE
3geez member since October 4th 2001
plug ends are all tight and the distributor cap is new
Wire resistance < 25kohms ?
Its not the wires either, i even swap the wires around and it still has the problem on the #1 cylinder
so i don't get it ! every thing fine in the spark as you said ! and the cylinder is not firing ???????? you said you changed the rotor right ! i would check the igniter ! and then teh coompression in that cylinder !
MIKE
3geez member since October 4th 2001
Ran a compression test and the #1 cylinder couldn't even get 10psi.............What do you think? bent valves?
10 PSI ? damn ! that means it's fully not functioning ! though don't know much about what the results mean !
MIKE
3geez member since October 4th 2001
You could probably plug the pcv vacuum port on the intake manifold and remove the pcv valve then see if there is a lot of blow-by coming out of the PCV valve port.
Not sure if thats a good Idea though.
- llia
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