Hilt37Vtec

only smokes if i floor it at like 5-6 rpm, would this tell you anything.. if it starts hesitating while im driving i can shut the car off wait like 5 seconds turn it back on put it in gear and bam it fixes it for a while.. sometimes it doesnt though.

Hilt37Vtec

I have no idea if this has anything to do with it but i just noticed the valve cover has missing bolts and a broek one... i didnt notice this when i bought it a couple months ago... does anyone no the stock size of bolts for the f23a1 valve cover..

Hilt37Vtec

Any ideas?

JamesB1985

I don't think anyone mentioned Throttle Position Sensor yet. Sometimes there can be a glitch on the grid inside the sensor. This can be checked with a multimeter to. You need to see a constant increase/decrease in voltage to make sure there is no dirt, scratches in there.

I haven't read every one of the symptoms you've listed but this came to mind.
I think you said it happens when its cold too? If you warm is up it runs fine? My 98' Acura CL will run fine once warm but buck when its cold because of a warn out transmission, but then again, that's an automatic.

Definitely check fuel pressure like everyone else said.
Also you can look up that bolt size for the valve cover..check out bernardiparts.com or google Bernardi Honda Parts. They have diagrams/pictures of the engine and you can pick out which parts you need.

Hilt37Vtec

so where is the fuel pump on my car? in trunk or under rear seat? anyone know?

jdowen2

Per the FSM: 1. check fuel pressure. 2. inspect and test throttle body 3. inspect/adjust throttle cable

jdowen2

Fuel pump is in tank, filter screen is on the bottom of the pump. You could also have a bad fuel regulator.

Hilt37Vtec

well i know its in the tank... but where is the panel to access under the rear seat or trunk?

phillyhonda

Same thing happen with my accord but my check engine lite came on I checked the code It came back to a misfire I reserched be4 buyin any parts i read of guys buyin all types of parts and still didn't fix the problem as I keeped reading dude said he changed is altinator after buyin new pump,wire,plugs,distributor,filters and fixed it so I did to and fixed the problem

bdmlilburn

you definitely want the valve cover bolts to be replaced. when you say one is broken where exactly is it broken? have you troubleshooted the egr system yet?

compression check wouldn't hurt

Hilt37Vtec

ok i was testing out my car today and i let it get to running temp.. then i put the throttle to 2 rpm and held it there for a good 1 or 2 minutes then it just starting misfiring/bogging but i held the throttle exactly the same and it went down to like 1.2-1.5 rpm and it just sounded like bogging then when i let off the throttle it shot down to like 150-200 rpm almost killed it but then idled fine..... does that tell anyone anything?

phillyhonda

do you have a check engine light on??

Hilt37Vtec

no...

JamesB1985

Drive it off a cliff. Nuff said

Hilt37Vtec

i feel like it..

Hilt37Vtec

shoulda just kept my chevy 1500.. damn imports

brakedrum

How many miles does your Honda have on it? Is/are the Oxygen Sensor(s) original. It's more unusual for OBD2, but on OBD1 the o2 sensor can fail and never throw a CEL. It leads to the very kind of barely-drivable bogging that you described.

Hilt37Vtec

it does it more when there is less gas in the tank? thats gotta be the fuel pump right?

PT-Tuner.com

If anything this sounds exactly like my experience when my oxygen sensor on my 91 accord went bad. When the engine is cold, the engine is running off basemaps and not using the feedback from the oxygen sensor. When you WOT, it ignores the o2 sensor. Otherwise when was the last time your egr ports were cleaned, as your issue is happening during "cruise"?

Hilt37Vtec

it happens when i just drive regular and hit a certain rpm it starts bogging down and then it jerks and starts driving normal again

PT-Tuner.com

At least with my car when the issue happened, I found out it was the o2 sensor by simply unplugging it. With it unplugged the issue went away, yeah I had a check engine light, but the car didn't bog anymore. So maybe you could try that to rule out the o2 sensor. Otherwise you should be able to get a denso o2 sensor from rockauto for cheap.

Hilt37Vtec

So would autozone be able to check if there are any stored codes? because i don't know if the guy i bought it off of erased codes or not?

Hilt37Vtec

Which o2 should i unplug? the one at the header or behind the cat?

Hilt37Vtec

any idea on which o2 sensor?

PT-Tuner.com

Try the one at the header first.