# 92 Civic Bogging/dead spot while accelerating

**URL:** <https://community.cartalk.com/t/92-civic-bogging-dead-spot-while-accelerating/105262>\
**Category:** Maintenance/Repairs\
**Tags:** civic, engines, honda\
**Created:** [June 24, 2017, 2:08am UTC](https://community.cartalk.com/t/92-civic-bogging-dead-spot-while-accelerating/105262 "2017-06-24T02:08:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![park.gunho.nathan](https://avatars.discourse-cdn.com/v4/letter/p/41988e/32.png) [@park.gunho.nathan](https://community.cartalk.com/u/park.gunho.nathan)\
**Post date:** [June 24, 2017, 2:08am UTC](https://community.cartalk.com/t/92-civic-bogging-dead-spot-while-accelerating/105262/1 "2017-06-24T02:08:16Z")

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Year : 1992  
Make : Honda  
Model : Civic VX Manual  
Engine : 1.5 d15z1  
Mileage : 266k

My car started to bog/dead spot/ hesitation while accelerating around 1.5k rpm to 2.5k rpm all the time in every gear but less in 4th, 5th. After 3k rpm it runs smooth. Sometimes it’s so bad that I have about 4-second dead spot while accelerating and it’s getting quite dangerous to drive around traffic

So far I have changed,

Fuel filter  
Fuel pump  
Spark plugs

and cleaned

injectors  
intake manifold  
throttle  
map sensor

I have ran my car under an open loop by taking out the O2 sensor and it runs like brand new. Next thing on the list for me is to adjust the ignition timing but my question is

Since my car is running perfectly on open loop, can timing be still a factor to this problem?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [June 24, 2017, 2:14am UTC](https://community.cartalk.com/t/92-civic-bogging-dead-spot-while-accelerating/105262/2 "2017-06-24T02:14:18Z")

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So?

Why haven’t you replaced the O2 sensor?

This engine management system is OBDI.

And OBDI isn’t exactly accurate when reporting the condition of the only O2 sensor in the engine management system.

Tester

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**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\
**Post date:** [June 24, 2017, 2:20am UTC](https://community.cartalk.com/t/92-civic-bogging-dead-spot-while-accelerating/105262/3 "2017-06-24T02:20:18Z")

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> [@park.gunho.nathan](#):
>
> I have ran my car under an open loop by taking out the O2 sensor and it runs like brand new.

Sounds like changing the O2 sensor is the next best step. 😁  
Nice work, by the way.