P0405, P0406, hesitation/bogging occasionally at low RPM's, perceived slowness
12-23-2013, 06:36 AM
#1
Honda-Tech Member
Thread Starter
Join Date: Apr 2009
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
P0405, P0406, hesitation/bogging occasionally at low RPM's, perceived slowness
Before I take my 100% stock 2011 Accord EX 5spd to the dealer (still under warranty) and have them tell me it's normal and send me out, I wanted to go in armed with info. Here's what's happening:
-the car has on two occasions told me to check the gas cap, and then it shuts off by itself. This is days after I got the car filled up. Pulled codes P0405 and P0406.
-the exhaust gives off a deep, louder than before, sound during acceleration.
-power seems down..I find myself pushing the accelerator to the floor while merging on highways, etc (it feels like an old engine)
-hesitation/bogging, only occasionally, at low rpm's. At first I thought it was the motor mounts (hard to believe since the car is so new) but this all started when the other symptoms started, so hesitation/bogging makes more sense.
-I've noticed the exhaust tip is shaking like something's loose underneath, but the dealer had it on a lift a few weeks ago when I complained about the exhaust shake (my only "complaint" when I dropped it for the oil change) and we didn't see anything broken at quick glance.
-I'm working from home the next few weeks so I won't be able to calculate mpg, but I was consistently getting 30-31 mpg (I drive 140+ highway miles a day) and the last tank dropped to 25.7. Need a few more tanks to see if there's a trend.
*************************************************
Car had a fresh oil change at the dealer a few weeks ago and I swapped in a new air filter at the time.
I've read resetting the ECU / unplugging the battery has solved the bogging issues for some folks on the board, not sure if I should touch anything though before I drop it off at the dealership. I'd be surprised if it was a clogged cat, considering how new the car is but I have no idea what else it could be?
-the car has on two occasions told me to check the gas cap, and then it shuts off by itself. This is days after I got the car filled up. Pulled codes P0405 and P0406.
-the exhaust gives off a deep, louder than before, sound during acceleration.
-power seems down..I find myself pushing the accelerator to the floor while merging on highways, etc (it feels like an old engine)
-hesitation/bogging, only occasionally, at low rpm's. At first I thought it was the motor mounts (hard to believe since the car is so new) but this all started when the other symptoms started, so hesitation/bogging makes more sense.
-I've noticed the exhaust tip is shaking like something's loose underneath, but the dealer had it on a lift a few weeks ago when I complained about the exhaust shake (my only "complaint" when I dropped it for the oil change) and we didn't see anything broken at quick glance.
-I'm working from home the next few weeks so I won't be able to calculate mpg, but I was consistently getting 30-31 mpg (I drive 140+ highway miles a day) and the last tank dropped to 25.7. Need a few more tanks to see if there's a trend.
*************************************************
Car had a fresh oil change at the dealer a few weeks ago and I swapped in a new air filter at the time.
I've read resetting the ECU / unplugging the battery has solved the bogging issues for some folks on the board, not sure if I should touch anything though before I drop it off at the dealership. I'd be surprised if it was a clogged cat, considering how new the car is but I have no idea what else it could be?
12-23-2013, 03:37 PM
#2
Honda-Tech Member
Re: P0405, P0406, hesitation/bogging occasionally at low RPM's, perceived slowness
Before I take my 100% stock 2011 Accord EX 5spd to the dealer (still under warranty) and have them tell me it's normal and send me out, I wanted to go in armed with info. Here's what's happening:
-the car has on two occasions told me to check the gas cap, and then it shuts off by itself. This is days after I got the car filled up. Pulled codes P0405 and P0406.
-the exhaust gives off a deep, louder than before, sound during acceleration.
-power seems down..I find myself pushing the accelerator to the floor while merging on highways, etc (it feels like an old engine)
-hesitation/bogging, only occasionally, at low rpm's. At first I thought it was the motor mounts (hard to believe since the car is so new) but this all started when the other symptoms started, so hesitation/bogging makes more sense.
-I've noticed the exhaust tip is shaking like something's loose underneath, but the dealer had it on a lift a few weeks ago when I complained about the exhaust shake (my only "complaint" when I dropped it for the oil change) and we didn't see anything broken at quick glance.
-I'm working from home the next few weeks so I won't be able to calculate mpg, but I was consistently getting 30-31 mpg (I drive 140+ highway miles a day) and the last tank dropped to 25.7. Need a few more tanks to see if there's a trend.
*************************************************
Car had a fresh oil change at the dealer a few weeks ago and I swapped in a new air filter at the time.
I've read resetting the ECU / unplugging the battery has solved the bogging issues for some folks on the board, not sure if I should touch anything though before I drop it off at the dealership. I'd be surprised if it was a clogged cat, considering how new the car is but I have no idea what else it could be?
-the car has on two occasions told me to check the gas cap, and then it shuts off by itself. This is days after I got the car filled up. Pulled codes P0405 and P0406.
-the exhaust gives off a deep, louder than before, sound during acceleration.
-power seems down..I find myself pushing the accelerator to the floor while merging on highways, etc (it feels like an old engine)
-hesitation/bogging, only occasionally, at low rpm's. At first I thought it was the motor mounts (hard to believe since the car is so new) but this all started when the other symptoms started, so hesitation/bogging makes more sense.
-I've noticed the exhaust tip is shaking like something's loose underneath, but the dealer had it on a lift a few weeks ago when I complained about the exhaust shake (my only "complaint" when I dropped it for the oil change) and we didn't see anything broken at quick glance.
-I'm working from home the next few weeks so I won't be able to calculate mpg, but I was consistently getting 30-31 mpg (I drive 140+ highway miles a day) and the last tank dropped to 25.7. Need a few more tanks to see if there's a trend.
*************************************************
Car had a fresh oil change at the dealer a few weeks ago and I swapped in a new air filter at the time.
I've read resetting the ECU / unplugging the battery has solved the bogging issues for some folks on the board, not sure if I should touch anything though before I drop it off at the dealership. I'd be surprised if it was a clogged cat, considering how new the car is but I have no idea what else it could be?
P0405 and 406 are egr malfunction codes. Depending on the issue, these faults can/will make your car bog, hesitate and stall and lower your mpg. Dont touch it and dont sweat it until you take it the dealer....
Thread
Thread Starter
Forum
Replies
Last Post
patrickstar
Honda CRX / EF Civic (1988 - 1991)
11
11-08-2008 10:05 PM
Devante
Honda Civic / Del Sol (1992 - 2000)
23
11-28-2007 10:31 AM