2003 Odessy slight hesitation

I have a 2003 Odessy with a 3.5 V6. It hesitates slightly, and somtimes
drops power for a fraction of a second. It's strange because it only does
it when the gas peddle is slightly depressed, when cruising at high or low
speeds. No problems on acceleratation, no problems starting. I get no
codes returned when I check the computer with a reader, and no engine light
is comming on. The car has 56,000 miles on it so I tend not to think it
needs a tune up per se. I checked a couple plugs, and the air filter, and
everythings alright there. I was thinking that a fuel filter or fuel pump
might be acting up but before I test the fuel pump pressure I thought see
if anyone here has any ideas. Could the ECM be acting up? I would think
that would trigger some codes. Anyways, I'm stumped. I have one idea, I
know on some cars if the gas cap isn't on tight, the car will act up, does
anyone know if this happens with this engine? If it does, wouldn't I get a
fault code? A buddy of mine was having problems once and the code reader
came back with some kind of fuel problem code, and a quick search suggested
taking the gas cap off and putting it back on again tight.. problem fixed.

TIA

Paul.

 

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Are you running injector cleaner (or a tank of Gasohol) through it a
couple times a year?

Look through the TSB's :
http://www.tegger.com/hondafaq/tsb/odyssey/index.html

Read the tranny ones too.

'Curly'

 

Does it hesitate when the AC is on, off, or all the time? See previous
post on 98 Civic Compressor. Good luck.

 

I'll run some injector cleaner through today. About these transmission
codes, I had assumed that any such codes would automatically be read. Is
there a different interface port to read the tranny codes, if so, where
is it?

Thanks.

 

AC makes no difference.

Thanks for the wish of luck.

Paul.

 

my 03 Pilot with 98,000 miles is acting like that - I figure when I am in
for the timing belt, I will ask. Gas mileage has dropped to 15,16 too was
17-19.
Rocky

 

Well the check engine light finally came on and triggered some codes. I
got a p1491 which is an EGR malfunction. I also have a TCS light coming on
indicating that there may be a problem with the the traction control
system. I'm glad we got the extended warranty on this baby when we bought
it a month ago.

Paul.