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  #1 (permalink)  
Old 05 Jun 2006, 03:44 pm
larson.joshua@gmail.com
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Default 91 civic crank angle senor

i recently did a head gasket on this car and replaced the timing belt.
upon successfully starting the car and adjusting the valves, i took it
for a drive.

at idle it runs fine. about 2 minutes into the drive (not sure if this
is time or speed related) the check engine light would go on
simultaneously as the car would lose power - as though a cylinder
stopped firing.

after getting home, i check the ecu. it claims a crank angle sensor
fault. this is located in the distributor, which is only a few months
old, and is unreplaceable according to chiltons.

if i clear the code by pulling the hazard fuse for 10 seconds or so,
the car starts up and runs great. again, it idles fine, take it for a
drive, about 2 minutes later, bam, check engine and power loss.

now, the ecu has been known to be wrong before. any ideas?

thanks so much.

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  #2 (permalink)  
Old 05 Jun 2006, 07:25 pm
'Curly Q. Links'
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Default Re: 91 civic crank angle senor

larson.joshua@gmail.com wrote:
>
> i recently did a head gasket on this car and replaced the timing belt.
> upon successfully starting the car and adjusting the valves, i took it
> for a drive.
>
> at idle it runs fine. about 2 minutes into the drive (not sure if this
> is time or speed related) the check engine light would go on
> simultaneously as the car would lose power - as though a cylinder
> stopped firing.
>
> after getting home, i check the ecu. it claims a crank angle sensor
> fault. this is located in the distributor, which is only a few months
> old, and is unreplaceable according to chiltons.
>
> if i clear the code by pulling the hazard fuse for 10 seconds or so,
> the car starts up and runs great. again, it idles fine, take it for a
> drive, about 2 minutes later, bam, check engine and power loss.
>
> now, the ecu has been known to be wrong before. any ideas?
>
> thanks so much.


-----------------------------------

Did you put the 'heat sink' paste on the backside of the components that
need it? Sounds like a heat buildup problem . . .

'Curly'
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  #3 (permalink)  
Old 05 Jun 2006, 07:31 pm
larson.joshua@gmail.com
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Default Re: 91 civic crank angle senor

i'm unfamiliar with what you're talking about. could you enlighten me?


'Curly Q. Links' wrote:
> larson.joshua@gmail.com wrote:
> >
> > i recently did a head gasket on this car and replaced the timing belt.
> > upon successfully starting the car and adjusting the valves, i took it
> > for a drive.
> >
> > at idle it runs fine. about 2 minutes into the drive (not sure if this
> > is time or speed related) the check engine light would go on
> > simultaneously as the car would lose power - as though a cylinder
> > stopped firing.
> >
> > after getting home, i check the ecu. it claims a crank angle sensor
> > fault. this is located in the distributor, which is only a few months
> > old, and is unreplaceable according to chiltons.
> >
> > if i clear the code by pulling the hazard fuse for 10 seconds or so,
> > the car starts up and runs great. again, it idles fine, take it for a
> > drive, about 2 minutes later, bam, check engine and power loss.
> >
> > now, the ecu has been known to be wrong before. any ideas?
> >
> > thanks so much.

>
> -----------------------------------
>
> Did you put the 'heat sink' paste on the backside of the components that
> need it? Sounds like a heat buildup problem . . .
>
> 'Curly'


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  #4 (permalink)  
Old 05 Jun 2006, 07:45 pm
'Curly Q. Links'
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Posts: n/a
Default Re: 91 civic crank angle senor

larson.joshua@gmail.com wrote:
>
> i'm unfamiliar with what you're talking about. could you enlighten me?

------------------------------------------
> > Did you put the 'heat sink' paste on the backside of the components that
> > need it? Sounds like a heat buildup problem . . .

----------------------------------

If somebody failed to put the heat sink paste (same as what's used on
Pentium chips) when they assembled the components inside the ( new /
used / reconditioned????) distributor (which was installed when the
weather was cooler) you might be getting overheating problems / circuit
shutdowns.

Do a google groups search.

'Curly'
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  #5 (permalink)  
Old 05 Jun 2006, 07:52 pm
larson.joshua@gmail.com
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Posts: n/a
Default Re: 91 civic crank angle senor

yes, the distributor was remanufactured from Napa. i'd assume they
assembled it correctly. i am not so sure i want to take it apart to
find out...

i think i will take off the cap and see what i can see...

'Curly Q. Links' wrote:
> larson.joshua@gmail.com wrote:
> >
> > i'm unfamiliar with what you're talking about. could you enlighten me?

> ------------------------------------------
> > > Did you put the 'heat sink' paste on the backside of the components that
> > > need it? Sounds like a heat buildup problem . . .

> ----------------------------------
>
> If somebody failed to put the heat sink paste (same as what's used on
> Pentium chips) when they assembled the components inside the ( new /
> used / reconditioned????) distributor (which was installed when the
> weather was cooler) you might be getting overheating problems / circuit
> shutdowns.
>
> Do a google groups search.
>
> 'Curly'


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  #6 (permalink)  
Old 05 Jun 2006, 10:10 pm
Elle
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Posts: n/a
Default Re: 91 civic crank angle senor

"'Curly Q. Links'" <motsco__@interbaun.com> wrote
> larson.joshua@gmail.com wrote:
>>
>> i recently did a head gasket on this car and replaced the
>> timing belt.
>> upon successfully starting the car and adjusting the
>> valves, i took it
>> for a drive.
>>
>> at idle it runs fine. about 2 minutes into the drive
>> (not sure if this
>> is time or speed related) the check engine light would go
>> on
>> simultaneously as the car would lose power - as though a
>> cylinder
>> stopped firing.
>>
>> after getting home, i check the ecu. it claims a crank
>> angle sensor
>> fault. this is located in the distributor, which is only
>> a few months
>> old, and is unreplaceable according to chiltons.
>>
>> if i clear the code by pulling the hazard fuse for 10
>> seconds or so,
>> the car starts up and runs great. again, it idles fine,
>> take it for a
>> drive, about 2 minutes later, bam, check engine and power
>> loss.
>>
>> now, the ecu has been known to be wrong before. any
>> ideas?
>>
>> thanks so much.

>
> -----------------------------------
>
> Did you put the 'heat sink' paste on the backside of the
> components that
> need it? Sounds like a heat buildup problem . . .


Is there anything besides the igniter that needs it?


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  #7 (permalink)  
Old 05 Jun 2006, 11:41 pm
jim beam
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Posts: n/a
Default Re: 91 civic crank angle senor

larson.joshua@gmail.com wrote:
> i recently did a head gasket on this car and replaced the timing belt.
> upon successfully starting the car and adjusting the valves, i took it
> for a drive.
>
> at idle it runs fine. about 2 minutes into the drive (not sure if this
> is time or speed related) the check engine light would go on
> simultaneously as the car would lose power - as though a cylinder
> stopped firing.
>
> after getting home, i check the ecu. it claims a crank angle sensor
> fault. this is located in the distributor, which is only a few months
> old, and is unreplaceable according to chiltons.
>
> if i clear the code by pulling the hazard fuse for 10 seconds or so,
> the car starts up and runs great. again, it idles fine, take it for a
> drive, about 2 minutes later, bam, check engine and power loss.
>
> now, the ecu has been known to be wrong before. any ideas?
>
> thanks so much.
>

1. consider returning the distributor under warranty.
2. just the sensor cannot be replaced, you have to do the whole unit.
3. ecu's are oh so very rarely defective. you can probably count on the
fingers of one hand the number of them that are genuinely bad each year.
check wiring & connectors.
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  #8 (permalink)  
Old 06 Jun 2006, 04:42 am
Burt
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Posts: n/a
Default Re: 91 civic crank angle senor

"jim beam" <nospam@example.net> wrote

> 1. consider returning the distributor under warranty.
> 2. just the sensor cannot be replaced, you have to do the whole unit.


You mean just the distributor sub-assembly.

> 3. ecu's are oh so very rarely defective. you can probably count on the
> fingers of one hand the number of them that are genuinely bad each year.
> check wiring & connectors.





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  #9 (permalink)  
Old 06 Jun 2006, 04:42 am
Burt
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Posts: n/a
Default Re: 91 civic crank angle senor

<larson.joshua@gmail.com> wrote in message news:1149551532.335586.140840@h76g2000cwa.googlegr oups.com...
> yes, the distributor was remanufactured from Napa. i'd assume they
> assembled it correctly. i am not so sure i want to take it apart to
> find out...
>
> i think i will take off the cap and see what i can see...
>
> 'Curly Q. Links' wrote:
> > larson.joshua@gmail.com wrote:
> > >
> > > i'm unfamiliar with what you're talking about. could you enlighten me?

> > ------------------------------------------
> > > > Did you put the 'heat sink' paste on the backside of the components that
> > > > need it? Sounds like a heat buildup problem . . .

> > ----------------------------------
> >
> > If somebody failed to put the heat sink paste (same as what's used on
> > Pentium chips) when they assembled the components inside the ( new /
> > used / reconditioned????) distributor (which was installed when the
> > weather was cooler) you might be getting overheating problems / circuit
> > shutdowns.


Speaking for the crank sensor, I wouldn't put heatsink paste on
the crank sensor since it works best if it's isolated from the housing.







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  #10 (permalink)  
Old 06 Jun 2006, 08:49 am
jim beam
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Posts: n/a
Default Re: 91 civic crank angle senor

Burt wrote:
> "jim beam" <nospam@example.net> wrote
>
>
>>1. consider returning the distributor under warranty.
>>2. just the sensor cannot be replaced, you have to do the whole unit.

>
>
> You mean just the distributor sub-assembly.


whatever you bought a month ago.

>
>
>>3. ecu's are oh so very rarely defective. you can probably count on the
>>fingers of one hand the number of them that are genuinely bad each year.
>> check wiring & connectors.

>
>
>
>
>

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