99 accord p0301 and p1399...please help!!
#21
Your either have a burnt valve or bad head. My car was throwing the same codes and doing the same thing. The silver lining in my story is I was able to find a motor on eBay for $350 and I found someone to install it for $600.
#24
I have a 1998 Honda Accord V6 with 205k miles. For what it's worth, I was having all the same issues and codes listed in this thread and was lucky enough to find a solution.
My engine ran really rough at low rpms and at one point died in a drug store parking lot and could not be started. I towed it to my mechanic buddy whose best initial guess was to replace the distributor and ignition coil. That helped a bit, and kept the car from stalling at intersections. It still ran really rough at low rpms, though, and shuttered when starting from a stop. Once it was going, I didn't feel the misfires anymore.
I took the car back into my buddy who did a whole bunch of diagnostics and ruled out problems with the EGR being stuck open or clogged. We got spark in every cylinder just fine. No problems with the catalytic converter since I was able to go 80 mph no problem on the freeway.
I had literally just replaced my spark plugs. My wires were "premium" and only about 2 years old so I didn't expect them to be a problem. But after ready a few posts around the net, several guys fixed their problem with a new set of NGK wires. Since that was the last thing I was willing to spend money on before ditching my car for a new one, I went for it... and it worked. Smooth as butter now.
Moral of the story is to suspect your spark plug wires even if they aren't that old. And buy NGK. They are blue, look awesome on the engine, and even smell cool. Hope this helps someone.
My engine ran really rough at low rpms and at one point died in a drug store parking lot and could not be started. I towed it to my mechanic buddy whose best initial guess was to replace the distributor and ignition coil. That helped a bit, and kept the car from stalling at intersections. It still ran really rough at low rpms, though, and shuttered when starting from a stop. Once it was going, I didn't feel the misfires anymore.
I took the car back into my buddy who did a whole bunch of diagnostics and ruled out problems with the EGR being stuck open or clogged. We got spark in every cylinder just fine. No problems with the catalytic converter since I was able to go 80 mph no problem on the freeway.
I had literally just replaced my spark plugs. My wires were "premium" and only about 2 years old so I didn't expect them to be a problem. But after ready a few posts around the net, several guys fixed their problem with a new set of NGK wires. Since that was the last thing I was willing to spend money on before ditching my car for a new one, I went for it... and it worked. Smooth as butter now.
Moral of the story is to suspect your spark plug wires even if they aren't that old. And buy NGK. They are blue, look awesome on the engine, and even smell cool. Hope this helps someone.
Thread
Thread Starter
Forum
Replies
Last Post
geoffm1234
General Tech Help
18
07-20-2012 10:12 PM
patelmd
General Tech Help
14
06-29-2012 01:15 AM