Hesitation and loss of power (10-20%) at exactly 3.3k RPM under hard acceleration.

[Sedare]

Topic pretty much says it. If I casually accelerate, I feel that hesitation only in 1st and 2nd gear, when I drive it harder, I feel it also in 3rd and 4th. Never felt it in 5th. It gets less noticable the higher gear I am in, but either way, it is there in every gear.

The CEL is on, but that is the "Fuel to lean or strong" CEL. I am fixing my laptop to check the codes in a day or 2, but I know that my car has been doing this for a couple years, but I just now traced it to a specific RPM.

Is something wrong with Vtec? I am really just guessing here. No idea why its doing it.

BTW I drive a 1998 Accord LX 2.3 5spd.

 

[DarkSideAccord]

Re: Hesitation and loss of power (10-20%) at exactly 3.3k RPM under hard acceleration

vtek oil.....

and why do u need to fix your laptop to pull the code....? just use the paperclip trick...

 

[Chris Vu]

Re: Hesitation and loss of power (10-20%) at exactly 3.3k RPM under hard acceleration

Clogged cat ? What's your laptop got to do with pulling codes ?

 

[Sedare]

Re: Hesitation and loss of power (10-20%) at exactly 3.3k RPM under hard acceleration

I use an OBD2 program on my laptop to pull and reset codes. Its free, and its what I use on a number of different cars because I dont want to learn how to pull codes manually on whatevercar I need to do it on. I plug it in and read it and done. Seems like a much simpler way then using a paper clip (Which I have done before).

Vtec oil? What do you mean by that?

Clogged cat? like... carbon buildup?

 

[DarkSideAccord]

Re: Hesitation and loss of power (10-20%) at exactly 3.3k RPM under hard acceleration

Oil level is low...car goes in limp mode aka no vtek

 

[Sedare]

Re: Hesitation and loss of power (10-20%) at exactly 3.3k RPM under hard acceleration

Dipstick reads normal.
Could it be that I am running mobil 1 full synthetic 5/20?

 

[komodomoe]

Re: Hesitation and loss of power (10-20%) at exactly 3.3k RPM under hard acceleration

I would test the VTEC solenoid

 

[Sedare]

Re: Hesitation and loss of power (10-20%) at exactly 3.3k RPM under hard acceleration

Put more oil into engine, just above the 2nd dot on the dip stick, test drove it, hesitation went away. Its like I found out why the hesitation was there, but the VTEC still isnt working? Then I parked it over night, and the hesitation came back, but instead of at 3.3k, its 3.8k in only 1st, 2nd and 3rd gears.

This is confusing.

 

[Jevik]

Re: Hesitation and loss of power (10-20%) at exactly 3.3k RPM under hard acceleration

My guess is Vtec solenoid filter screen. Remove the 3 bolts holding the solenoid on and clean that screen