vincentfkc

my accord 01 coupe 2.3L has slow engine warming up,

it takes 5mins to warm up right now, the temperature is around 10- 15°C

If I drive the car before the engine warms up, i feel a little bit lag when I accelerate.

However, if the engine has already been warmed up, It accelerates smoothly.

anyone knows why does it happen?

thanx

vincentfkc

does this relate to timing belt or water pump,

i have;t changed them yet, gonna do it next month, just ordered following items:

Conti Timing Belt & Airtex Water Pump

are they good quality? but they cost alot , almost 200 bucks

Tyte-S

.<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vincentfkc &raquo;</TD></TR><TR><TD CLASS="quote">
However, if the engine has already been warmed up, It accelerates smoothly.

anyone knows why does it happen?

thanx </TD></TR></TABLE>Your car will run in Open Loop cycle untillthe oxygen sensor warms up. And five minutes to warm up isnt that bad.

vincentfkc

so basicly, there is nothing wrong with it, right?

sony224422

your thermostat could be bad too.

vincentfkc

so i need to repair it or replace it? expensive?

sony224422

lol well first off hows the heat?

the thermostat itself is like $7 if that. Not hard to do, but not easy either.

vincentfkc

th heat? the temperature keeps at lower mid when driving, not bad

accord99power

like tyte-s said thats normal for the operating temp not to warm up for about 5 mins, the only issue i see is why is it lagging when cold? what is this lag your feeling? have you used any o2 sensor safe fuel system cleaners recently?

sony224422

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vincentfkc &raquo;</TD></TR><TR><TD CLASS="quote">th heat? the temperature keeps at lower mid when driving, not bad</TD></TR></TABLE>

i don't mean the engine temp., i mean the actual heat output. if your thermostat is stuck partially open, it could make your car take awhile to heat up. if your heat seems normal, then your o2 sensor might need to be changed.

vincentfkc

the heat ouptout is very hot when the engine warms up, otherwise, it is normal, I will try to change the o2 sensor~thanx~

vincentfkc

when I accelerate, from 2000RPM-3000RPM, there is a lag, rpm will go down a little bit when hits 3000, then go above 3000.

I haven't used any o2 sensor safe fuel system cleaners, what is it about

accord99power

i was just gonna say if you havent in a while go ahead and run some through, and run some bg intake system cleaner through the throttle body, and clean it up, see if it still lags. if so at least youve cleaned out your fuel lines and intake (assuming you have a clean air filter )

sony224422

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vincentfkc &raquo;</TD></TR><TR><TD CLASS="quote">when I accelerate, from 2000RPM-3000RPM, there is a lag, rpm will go down a little bit when hits 3000, then go above 3000.

I haven't used any o2 sensor safe fuel system cleaners, what is it about </TD></TR></TABLE>

you may not need one, so don't go spending money yet. Do as accord99power says, and make sure your car is all tuned up, plugs and wires and such. If you're still having problems, then you may need a new o2 sensor as it may be on its way out.

vincentfkc

what does this mean " run some bg intake system cleaner "

sry, i am just newbie - -

sony224422

i think he means like carb cleaner

ECX

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sony224422 &raquo;</TD></TR><TR><TD CLASS="quote">

i don't mean the engine temp., i mean the actual heat output. if your thermostat is stuck partially open, it could make your car take awhile to heat up. if your heat seems normal, then your o2 sensor might need to be changed.</TD></TR></TABLE>

Sounds like ECX needs a new thermostat.

Tyte-S

Does your heat suck or does it not work at all? ECX...

vincentfkc

works fine, just slow - -, if i warm up car for 5 mins right now, i would warm up car for 10-15mins in winter, Toronto is cold in winter

accord99power

no problem man no BG is the brand its called Intake system cleaner, alot of mechanics use it at shops when they "tuneup your engine" along with BG fuel system cleaner. But the intake system cleaner. Its actually a throttle body cleaner as well, not a carb cleaner. dont ask the difference though, hehe. but ive looked at the top of my pistons before and after and youll be amazed.

vincentfkc

thanx man~

accord99power

yep forgot to tell you i knwo they carry it at napa if ones in your area.

sony224422

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by accord99power &raquo;</TD></TR><TR><TD CLASS="quote">no problem man no BG is the brand its called Intake system cleaner, alot of mechanics use it at shops when they "tuneup your engine" along with BG fuel system cleaner. But the intake system cleaner. Its actually a throttle body cleaner as well, not a carb cleaner. dont ask the difference though, hehe. but ive looked at the top of my pistons before and after and youll be amazed. </TD></TR></TABLE>

ahh gotcha. never heard of it before

i don't think it hurts to use carb cleaner vs throttlebody though, i can swear they say both on them but i could be wrong