[superbattleship]

I have a 03 EX-L with 104k miles on it. I've been having problem with the engine hesitating under high load, rather accelerating onto a highway or going up an incline, the engine would not want to go above 3000rpm. If I hit the gas a little harder it would actually start pinging. Recently it threw a o2 sensor low voltage code for the one in the front so I replaced it but it didn't alleviate the issue. A friend of mine suggest that it might be a battery issue in that it's not supplying a high enough voltage, so I went and have the battery checked, the battery was in fact needed to be replaced so I bought new one, but that still didn't resolve hesitation issue. Does anyone have an opinion on what the issue is?

 

[superbattleship]

Just an update. I just drove the van 10 minutes ago and attempt another high load acceleration. This time the CEL flash for a couple of seconds so when I got home I hooked my code reader to see what the it was. It gave me a pending p1399 code, which I came to understand is a misfire code. Still would like some help in figuring this thing out

 

[New Dad New Van]

You are in "limp mode" until you resolve the CEL code P1399.

Search on "P1399" and "limp mode" for more info.

 

[sontakke]

Add "ignition coil" to your search list. Just last week, somebody gave a nice step by step instructions on how to find and fix the bad coil. Look at the last reply of the attached link.

http://www.odyclub.com/forums/24-1999-2004-odyssey/149054-idling-misfiring-problems-2001-a.html