Hello Guys,

I notice the idle body of my wife's Honda accord 03 is partly close. Car doesn't idle well, it get worst when the Ac is ON

Pls kindly advice.

Adjust the sensor close to the Throttle mouth with a screwdriver with the engine and ac on. Once it stabilizes, tighten the screws and the car will be ok

sooperrescue:
Adjust the sensor close to the Throttle mouth with a screwdriver with the engine and ac on. Once it stabilizes, tighten the screws and the car will be ok

Thanks for the advice, pls kindly advice name of sensor as I don't want to tamper the wrong sensor.

So much view and no response...

pitastephen:
Hello Guys,

I notice the idle body of my wife's Honda accord 03 is partly close. Car doesn't idle well, it get worst when the Ac is ON

Pls kindly advice.

Erratic idle issue doesn't mean the first thing is to start fiddling with the throttle adjustment screw. That screw is not even meant to be touched .
There is a lot of reason that can affect the idle speed to become eratic ranging from misfire ,vacuum leak ,lean mixture issues ,clogged idle valve .
Mind you, the throttle valve is not designed to close completely to allow air passage during idling ,so slightly opening throttle @ idle is normal.
First ,run diagnosis on your vehicle and check the idle speed if it within spec and if not service the idle control valve assembly. Also check for misfire and vacuum leak

autologic:

Erratic idle issue doesn't mean the first thing is to start fiddling with the throttle adjustment screw. That screw is not even meant to be touched .
There is a lot of reason that can affect the idle speed to become eratic ranging from misfire ,vacuum leak ,lean mixture issues ,clogged idle valve .
Mind you, the throttle valve is not designed to close completely to allow air passage during idling ,so slightly opening throttle @ idle is normal.
First ,run diagnosis on your vehicle and check the idle speed if it within spec and if not service the idle control valve assembly. Also check for misfire and vacuum leak

Thanks for the input Sir..but as per the picture, the idle sensor is attached to the throttle body, there should be some kind of passage in between both..my concern is, that passage is block.

pitastephen:


Thanks for the input Sir..but as per the picture, the idle sensor is attached to the throttle body, there should be some kind of passage in between both..my concern is, that passage is block.

Like I said earlier ,service the idle valve assembly

OP please pardon me.

Fellow nairalanders, kindly help me out on the attached scan results. The car is 2003 Honda Accord (eod).

The car consumes so much fuel. A full tank gave me about 209 km in four days.

Thanks.

collinsfhk:
OP please pardon me.

Fellow nairalanders, kindly help me out on the attached scan results. The car is 2003 Honda Accord (eod).

The car consumes so much fuel. A full tank gave me about 209 km in four days.

Thanks.

Confirm if it is KM or Miles,

What previous work was done on your car?

Cc Oluwaseunla GAZZUZZ AutoElectNG

thebigkendo:


Confirm if it is KM or Miles,

What previous work was done on your car?

Cc Oluwaseunla GAZZUZZ AutoElectNG

Thanks for your response.

It's km. Work done was on the supensions

pitastephen:


Thanks for the input Sir..but as per the picture, the idle sensor is attached to the throttle body, there should be some kind of passage in between both..my concern is, that passage is block.

get a can of throttle body cleaner spray the butterfly valve till it's clean, turn it open with your hand to spray the back side.

Then remove the idle air control sensor and spray it clean with the cleaner and any other carbon build up then reinstall.

You car will idle a little rough before it readjust to a clear passage.

Attached is a pic of a sample from my old jeep

Make sure your air duct has no leak and everything is air tight

collinsfhk:
OP please pardon me.

Fellow nairalanders, kindly help me out on the attached scan results. The car is 2003 Honda Accord (eod).

The car consumes so much fuel. A full tank gave me about 209 km in four days.

Thanks.

MODIFIED

P0705: recent transmission work? Driven through water? The electricals that tell the car what gear you have selected or the car is in are out of order. Could be the switch or the wiring. If it's the switch, a replacement is on the cards.

P0339: is the wiring to that sensor intact? If yes, what of the connector? Brittle? Inspect and maybe replace if it does nor look like the connection is tight

P0113: is the wiring intact? Broken? Loose? Or have two wires that should not make contact made contact?

Seen.

Will modify post with response tomorrow

collinsfhk:


Thanks for your response.

It's km. Work done was on the supensions

I guess your EOD is 4 cylinder.. First check around your engine for connectors not plugged it

pitastephen:
Hello Guys,

I notice the idle body of my wife's Honda accord 03 is partly close. Car doesn't idle well, it get worst when the Ac is ON

Pls kindly advice.

While cleaning the butterfly plate with the carb cleaner use a rag to wipe away carbon. Be careful not to spray on plastic or rubber or electrical sensors it will degrade them. Also you should do an idle relearn procedure afterwards. Just google idle learn procedure for the car. Do you have any scan results yet?

autologic:

Erratic idle issue doesn't mean the first thing is to start fiddling with the throttle adjustment screw. That screw is not even meant to be touched .
There is a lot of reason that can affect the idle speed to become eratic ranging from misfire ,vacuum leak ,lean mixture issues ,clogged idle valve .
Mind you, the throttle valve is not designed to close completely to allow air passage during idling ,so slightly opening throttle @ idle is normal.
First ,run diagnosis on your vehicle and check the idle speed if it within spec and if not service the idle control valve assembly. Also check for misfire and vacuum leak

1 up for this post!

collinsfhk:
OP please pardon me.

Fellow nairalanders, kindly help me out on the attached scan results. The car is 2003 Honda Accord (eod).

The car consumes so much fuel. A full tank gave me about 209 km in four days.

Thanks.

Does the car refuse to start in P sometimes and then start in N? Does it start in other gears? It's the most likely the first code that is responsible for the poor mileage. Your transmission range switch may need replacement but you need to exclude poor contacts first.
When last was the air cleaner element (engine air filter)
changed?

Piyke:


Does the car refuse to start in P sometimes and then start in N? Does it start in other gears? It's the most likely the first code that is responsible for the poor mileage. Your transmission range switch may need replacement but you need to exclude poor contacts first.
When last was the air cleaner element (engine air filter)
changed?

I once had a P0706 on my accord, it did not affect fuel economy, my bet is on P0113 IAT code or CKP

Piyke:


Does the car refuse to start in P sometimes and then start in N? Does it start in other gears? It's the most likely the first code that is responsible for the poor mileage. Your transmission range switch may need replacement but you need to exclude poor contacts first.
When last was the air cleaner element (engine air filter)
changed?

Thanks for your response. It starts in both, but doesn't on D. It also does a bit of hard start.

The air cleaner is usually cleaned

thebigkendo:


I guess your EOD is 4 cylinder.. First check around your engine for connectors not plugged it

Yes four cylinder. Connectors are all plugged to the best of my knowledge

AutoElectNG:


MODIFIED

P0705: recent transmission work? Driven through water? The electricals that tell the car what gear you have selected or the car is in are out of order. Could be the switch or the wiring. If it's the switch, a replacement is on the cards.

P0339: is the wiring to that sensor intact? If yes, what of the connector? Brittle? Inspect and maybe replace if it does nor look like the connection is tight

P0113: is the wiring intact? Broken? Loose? Or have two wires that should not make contact made contact?

Seen.

Will modify post with response tomorrow

Thanks very much.

Yeah, it was driven try water.

The fact is that I can't even identify those sensors. May be I will need to go to a pro.

thebigkendo:


I once had a P0706 on my accord, it did not affect fuel economy, my bet is on P0113 IAT code or CKP

You are partly right.
The p0339 will cause poor mileage. OBD-codes.com does list p0705 as a cause of poor mileage. But I do think that CKP should have a more profound effect. P0113 is reported to cause no change in performance except an illuminated CEL