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  #1 (permalink)  
Old 16 Mar 2010, 05:08 pm
Meatman
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Default CRX Sputter and Stumble then smooths out...

1988 CRX DX. No mods. Car randomly has fits of stumbling/rough idle.
When this happens at idle it also happens in any gear...but only in
the early part of acceleration in any gear. Push through the stumble
and sputter range (more fuel, greater load?) and it smooths out and
becomes normal. For example: accelerating from 55mph and shift to 5th
and hit the gas and it'll jerk you silly. I either have to limp it
through this or downshift to keep going. One more thing: This effect
can will often cause a stall when taking off in first. Hard as heck to
restart after this..sometimes accompanied by belch or fart like an
incomplete burn. Any ideas or a quick checklist? Thanks, fellers.

Kevin
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  #2 (permalink)  
Old 16 Mar 2010, 06:31 pm
Tegger
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Default Re: CRX Sputter and Stumble then smooths out...

Meatman <KevinLee33@comcast.net> wrote in news:c97f3191-4503-4e28-a11c-
c4a44e2f9468@l12g2000prg.googlegroups.com:

> 1988 CRX DX. No mods. Car randomly has fits of stumbling/rough idle.
> When this happens at idle it also happens in any gear...but only in
> the early part of acceleration in any gear. Push through the stumble
> and sputter range (more fuel, greater load?) and it smooths out and
> becomes normal. For example: accelerating from 55mph and shift to 5th
> and hit the gas and it'll jerk you silly. I either have to limp it
> through this or downshift to keep going. One more thing: This effect
> can will often cause a stall when taking off in first. Hard as heck to
> restart after this..sometimes accompanied by belch or fart like an
> incomplete burn. Any ideas or a quick checklist? Thanks, fellers.
>



Throttle-body injection or port injection?


--
Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
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  #3 (permalink)  
Old 16 Mar 2010, 06:31 pm
Tegger
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Default Re: CRX Sputter and Stumble then smooths out...

Tegger <invalid@invalid.inv> wrote in news:Xns9D3DC6882F268tegger@
208.90.168.18:

> Meatman <KevinLee33@comcast.net> wrote in news:c97f3191-4503-4e28-a11c-
> c4a44e2f9468@l12g2000prg.googlegroups.com:
>
>> 1988 CRX DX. No mods. Car randomly has fits of stumbling/rough idle.
>> When this happens at idle it also happens in any gear...but only in
>> the early part of acceleration in any gear. Push through the stumble
>> and sputter range (more fuel, greater load?) and it smooths out and
>> becomes normal. For example: accelerating from 55mph and shift to 5th
>> and hit the gas and it'll jerk you silly. I either have to limp it
>> through this or downshift to keep going. One more thing: This effect
>> can will often cause a stall when taking off in first. Hard as heck to
>> restart after this..sometimes accompanied by belch or fart like an
>> incomplete burn. Any ideas or a quick checklist? Thanks, fellers.
>>

>
>
> Throttle-body injection or port injection?
>
>



And do you have EGR?


--
Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
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  #4 (permalink)  
Old 16 Mar 2010, 07:03 pm
Grumpy AuContraire
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Default Re: CRX Sputter and Stumble then smooths out...

Meatman wrote:
> 1988 CRX DX. No mods. Car randomly has fits of stumbling/rough idle.
> When this happens at idle it also happens in any gear...but only in
> the early part of acceleration in any gear. Push through the stumble
> and sputter range (more fuel, greater load?) and it smooths out and
> becomes normal. For example: accelerating from 55mph and shift to 5th
> and hit the gas and it'll jerk you silly. I either have to limp it
> through this or downshift to keep going. One more thing: This effect
> can will often cause a stall when taking off in first. Hard as heck to
> restart after this..sometimes accompanied by belch or fart like an
> incomplete burn. Any ideas or a quick checklist? Thanks, fellers.
>
> Kevin




I had a similar problem with one of my earlier Hondas with a brand new
rebuilt carb and it ended up being a damaged power valve. Luckily, I
stole one out of one of my kits.

JT

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  #5 (permalink)  
Old 16 Mar 2010, 07:04 pm
Grumpy AuContraire
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Posts: n/a
Default Re: CRX Sputter and Stumble then smooths out...

Tegger wrote:
> Tegger <invalid@invalid.inv> wrote in news:Xns9D3DC6882F268tegger@
> 208.90.168.18:
>
>> Meatman <KevinLee33@comcast.net> wrote in news:c97f3191-4503-4e28-a11c-
>> c4a44e2f9468@l12g2000prg.googlegroups.com:
>>
>>> 1988 CRX DX. No mods. Car randomly has fits of stumbling/rough idle.
>>> When this happens at idle it also happens in any gear...but only in
>>> the early part of acceleration in any gear. Push through the stumble
>>> and sputter range (more fuel, greater load?) and it smooths out and
>>> becomes normal. For example: accelerating from 55mph and shift to 5th
>>> and hit the gas and it'll jerk you silly. I either have to limp it
>>> through this or downshift to keep going. One more thing: This effect
>>> can will often cause a stall when taking off in first. Hard as heck to
>>> restart after this..sometimes accompanied by belch or fart like an
>>> incomplete burn. Any ideas or a quick checklist? Thanks, fellers.
>>>

>>
>> Throttle-body injection or port injection?
>>
>>

>
>
> And do you have EGR?
>
>



DX probably has a carb. I had an '89 for a short time and that's what
that one had...

JT

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  #6 (permalink)  
Old 16 Mar 2010, 07:07 pm
Grumpy AuContraire
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Default Re: CRX Sputter and Stumble then smooths out...

Grumpy AuContraire wrote:
> Tegger wrote:
>> Tegger <invalid@invalid.inv> wrote in news:Xns9D3DC6882F268tegger@
>> 208.90.168.18:
>>
>>> Meatman <KevinLee33@comcast.net> wrote in news:c97f3191-4503-4e28-a11c-
>>> c4a44e2f9468@l12g2000prg.googlegroups.com:
>>>
>>>> 1988 CRX DX. No mods. Car randomly has fits of stumbling/rough idle.
>>>> When this happens at idle it also happens in any gear...but only in
>>>> the early part of acceleration in any gear. Push through the stumble
>>>> and sputter range (more fuel, greater load?) and it smooths out and
>>>> becomes normal. For example: accelerating from 55mph and shift to 5th
>>>> and hit the gas and it'll jerk you silly. I either have to limp it
>>>> through this or downshift to keep going. One more thing: This effect
>>>> can will often cause a stall when taking off in first. Hard as heck to
>>>> restart after this..sometimes accompanied by belch or fart like an
>>>> incomplete burn. Any ideas or a quick checklist? Thanks, fellers.
>>>>
>>>
>>> Throttle-body injection or port injection?
>>>
>>>

>>
>>
>> And do you have EGR?
>>
>>

>
>
> DX probably has a carb. I had an '89 for a short time and that's what
> that one had...
>



Thinking more about this, maybe it was a throttle body. Car never ran
for me as it had a cracked head and I sent it on its merry way...

JT
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  #7 (permalink)  
Old 16 Mar 2010, 08:35 pm
MG
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Posts: n/a
Default Re: CRX Sputter and Stumble then smooths out...



"Grumpy AuContraire" <GrumpyOne@GrumpyvilleNOT.com> wrote in message
news:WsudndWoLoXahj3WnZ2dnUVZ_jEAAAAA@giganews.com ...
> Meatman wrote:
>> 1988 CRX DX. No mods. Car randomly has fits of stumbling/rough idle.
>> When this happens at idle it also happens in any gear...but only in
>> the early part of acceleration in any gear. Push through the stumble
>> and sputter range (more fuel, greater load?) and it smooths out and
>> becomes normal. For example: accelerating from 55mph and shift to 5th
>> and hit the gas and it'll jerk you silly. I either have to limp it
>> through this or downshift to keep going. One more thing: This effect
>> can will often cause a stall when taking off in first. Hard as heck to
>> restart after this..sometimes accompanied by belch or fart like an
>> incomplete burn. Any ideas or a quick checklist? Thanks, fellers.
>>
>> Kevin

>
>
>
> I had a similar problem with one of my earlier Hondas with a brand new
> rebuilt carb and it ended up being a damaged power valve. Luckily, I
> stole one out of one of my kits.
>
> JT
>


88? Could it be a vacuum advance issue, or was that all gone by then? Or
maybe fuel delivery.

mg

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  #8 (permalink)  
Old 16 Mar 2010, 10:27 pm
jim beam
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Posts: n/a
Default Re: CRX Sputter and Stumble then smooths out...

On 03/16/2010 05:07 PM, Grumpy AuContraire wrote:
> Grumpy AuContraire wrote:
>> Tegger wrote:
>>> Tegger <invalid@invalid.inv> wrote in news:Xns9D3DC6882F268tegger@
>>> 208.90.168.18:
>>>
>>>> Meatman <KevinLee33@comcast.net> wrote in news:c97f3191-4503-4e28-a11c-
>>>> c4a44e2f9468@l12g2000prg.googlegroups.com:
>>>>
>>>>> 1988 CRX DX. No mods. Car randomly has fits of stumbling/rough idle.
>>>>> When this happens at idle it also happens in any gear...but only in
>>>>> the early part of acceleration in any gear. Push through the stumble
>>>>> and sputter range (more fuel, greater load?) and it smooths out and
>>>>> becomes normal. For example: accelerating from 55mph and shift to 5th
>>>>> and hit the gas and it'll jerk you silly. I either have to limp it
>>>>> through this or downshift to keep going. One more thing: This effect
>>>>> can will often cause a stall when taking off in first. Hard as heck to
>>>>> restart after this..sometimes accompanied by belch or fart like an
>>>>> incomplete burn. Any ideas or a quick checklist? Thanks, fellers.
>>>>>
>>>>
>>>> Throttle-body injection or port injection?
>>>>
>>>>
>>>
>>>
>>> And do you have EGR?
>>>
>>>

>>
>>
>> DX probably has a carb. I had an '89 for a short time and that's what
>> that one had...
>>

>
>
> Thinking more about this, maybe it was a throttle body. Car never ran
> for me as it had a cracked head and I sent it on its merry way...
>
> JT


throttle body. looks like a carb tho.

--
nomina rutrum rutrum
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  #9 (permalink)  
Old 16 Mar 2010, 10:27 pm
jim beam
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Posts: n/a
Default Re: CRX Sputter and Stumble then smooths out...

On 03/16/2010 06:35 PM, MG wrote:
>
>
> "Grumpy AuContraire" <GrumpyOne@GrumpyvilleNOT.com> wrote in message
> news:WsudndWoLoXahj3WnZ2dnUVZ_jEAAAAA@giganews.com ...
>> Meatman wrote:
>>> 1988 CRX DX. No mods. Car randomly has fits of stumbling/rough idle.
>>> When this happens at idle it also happens in any gear...but only in
>>> the early part of acceleration in any gear. Push through the stumble
>>> and sputter range (more fuel, greater load?) and it smooths out and
>>> becomes normal. For example: accelerating from 55mph and shift to 5th
>>> and hit the gas and it'll jerk you silly. I either have to limp it
>>> through this or downshift to keep going. One more thing: This effect
>>> can will often cause a stall when taking off in first. Hard as heck to
>>> restart after this..sometimes accompanied by belch or fart like an
>>> incomplete burn. Any ideas or a quick checklist? Thanks, fellers.
>>>
>>> Kevin

>>
>>
>>
>> I had a similar problem with one of my earlier Hondas with a brand new
>> rebuilt carb and it ended up being a damaged power valve. Luckily, I
>> stole one out of one of my kits.
>>
>> JT
>>

>
> 88? Could it be a vacuum advance issue, or was that all gone by then? Or
> maybe fuel delivery.
>
> mg


no, the 88 is throttle body injection.

--
nomina rutrum rutrum
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  #10 (permalink)  
Old 16 Mar 2010, 10:30 pm
jim beam
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Posts: n/a
Default Re: CRX Sputter and Stumble then smooths out...

On 03/16/2010 03:08 PM, Meatman wrote:
> 1988 CRX DX. No mods. Car randomly has fits of stumbling/rough idle.
> When this happens at idle it also happens in any gear...but only in
> the early part of acceleration in any gear. Push through the stumble
> and sputter range (more fuel, greater load?) and it smooths out and
> becomes normal. For example: accelerating from 55mph and shift to 5th
> and hit the gas and it'll jerk you silly. I either have to limp it
> through this or downshift to keep going. One more thing: This effect
> can will often cause a stall when taking off in first. Hard as heck to
> restart after this..sometimes accompanied by belch or fart like an
> incomplete burn. Any ideas or a quick checklist? Thanks, fellers.
>
> Kevin


check the ignition system. use plugs that have a solid cap on them, not
screw cap. make sure the plug leads are good. use ngk plugs.

also, check the engine computer for codes - a failing throttle position
sensor trips a code and has similar symptoms to what you're describing.
but my money's on ignition problems.

--
nomina rutrum rutrum
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