im currently trying to figure out a misfire problem i am having with a 02 accord SE w/ only 32,000 miles but warranty is over. for about 3 months now, it seems only on cold/cool weathers the CEL comes on for cylinder misfire 3 and 2 but mainly stays on cylinder 3, but when in warm weathers it rarely comes on till the cars been sitting for around 30-45 mins... (steering wheel shakes slightly at start then the cel comes on, or just a shake of the steering wheel while driving 30-45 min before the light comes on)

we have taken it to the dealer for a check up, and all they could tell us was use better gas for a month, its been way past and still the same problem. Hillside Honda has run out of ideas, and suggest we start throwing $ on changing parts, they cannot gaurantee will solve the problem. so far theyve told us to change the injectors, bad ecu, or a sensor near the timing belt area? anyone have any opinions? t.i.a

the things i have done to resolve the problem are.
- Seafoam through the booster tube
- Seafoam crankcase
- Used Gumout injector cleaner in gas tank
- Used mobile/exxon 87 gas only
- Reset ecu
- New plugs/wires/cap/rotor oem honda parts

Things ive found on search under "misfires".
- clean egr valve + ports
- remove injectors to clean tips
- compression testing
- change/check thermostat

Modified by Mike813 at 11:17 AM 5/24/2006
made a change above, it happens only at Cold/cool weathers, warm weathers or after a drive its fine.


Modified by Mike813 at 11:18 AM 5/24/2006

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mike813 &raquo;</TD></TR><TR><TD CLASS="quote">so far theyve told us to change the injectors, bad ecu, or a sensor near the timing belt area?

Things ive found on search under "misfires".
- clean egr valve + ports
- remove injectors to clean tips
- compression testing
- change/check thermostat</TD></TR></TABLE>

any of those items that honda suggested could be the culprit. I wouldn't go throwing parts at it tho.

try swapping injector #3 with #4 and #2 with # 1 and see if the misfire follows the injectors.

definitely do a compression test to rule out problems with the pistons. it's cheap and easy.

I can't see the egr or the thermostat causing misfires.

 

try a higher octane gas, see if that helps

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by notoriousB &raquo;</TD></TR><TR><TD CLASS="quote">

any of those items that honda suggested could be the culprit. I wouldn't go throwing parts at it tho.

try swapping injector #3 with #4 and #2 with # 1 and see if the misfire follows the injectors.

definitely do a compression test to rule out problems with the pistons. it's cheap and easy.

I can't see the egr or the thermostat causing misfires.
</TD></TR></TABLE>

ill give that a try tomorrow, would doing the listening to the screwdriver for ticks on the injectors be easier to rule out if its a injector prob?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fe519 &raquo;</TD></TR><TR><TD CLASS="quote">try a higher octane gas, see if that helps</TD></TR></TABLE>

ive asked honda about that, they told us to stay with 87 putting a higher octane gas wouldnt do anything? so weve stayed using 87 till low fuel light was on, and refilled using 87 for about 3 cycles to burn all the "bad gas" still the same..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mike813 &raquo;</TD></TR><TR><TD CLASS="quote">ill give that a try tomorrow, would doing the listening to the screwdriver for ticks on the injectors be easier to rule out if its a injector prob?</TD></TR></TABLE>

that will only work if your injectors are not firing at all. if the injectors are intermittent you won't necessarily be able to tell using the screwdriver. if you had 2 injectors that weren't firing at all you wouldn't be able to drive it at all.

using higher octane gas is not going to fix the problem.

 

update

switched the plugs like suggested,injectors (4-3-2-1 to 2-1-3-4) and it worked fine till the weather was cooled off, once the car started it threw a p0302 = misfire on cylinder 2 and a p1399 which autozone said is a "glow plug high side"? i dont rmember honda accords having that code in their alldata books, but from research it says its random misfires for other vehicles..

ive read on yellowworld.com someone mentioned to check the ignitor? could that be a culprit as well? it seems alot of 99-02 model crv's have this same problem that noone seem to have figured out, or just never decided to update their thread after the problem was fixed...

thanks.