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Old 24 Feb 2005, 05:56 pm
Doc tor
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Default 1995 Civic EX

Good evening all, I can not find the shrader valve in the fuel rail for
checking fuel pressure. This is a V-Tec engine. What should the pressure
be? The engine problem is that it runs poorly, not all the time, when
the engine is cold. Engine shakes, misses until it is warmed up. After
that it runs good. No check engine light on.
T.I.A.

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  #2 (permalink)  
Old 24 Feb 2005, 08:04 pm
halo2 guy
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Default Re: 1995 Civic EX

my 96 accord v tek does not use a shrader valve as do most of the other
vehicles on the road. It has a bolt within a bolt on the rail. You relieve
pressure by loosening the bolt and then completely removing it and inserting
a fuel pressure gauge with an adapter. I imagine the Civic is no different.
That is all the information I have. The pressure I would think should be
around 40 psi.


"Doc tor" <darrell_s_kelly@hotmail.com> wrote in message
news:ZbKdncdeedAx9IPfRVn-sg@wideopenwest.com...
> Good evening all, I can not find the shrader valve in the fuel rail for
> checking fuel pressure. This is a V-Tec engine. What should the pressure
> be? The engine problem is that it runs poorly, not all the time, when the
> engine is cold. Engine shakes, misses until it is warmed up. After that it
> runs good. No check engine light on.
> T.I.A.
>


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  #3 (permalink)  
Old 24 Feb 2005, 09:08 pm
Mr. Nightmare
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Posts: n/a
Default Re: 1995 Civic EX

This is straight from the Helm manual. Hope it helps.

Note:
Before disconnecting fuel pipes or hoses, release pressure from the system
by loosening the 6 mm service bolt on top of the fuel filter.

Relieving
1. Disconnect the battery negative cable from the battery negative
terminal.
2. Remove the fuel fill cap.
3. Use a box end wrench on the 6 mm service bolt at the fuel filter, while
holding the special banjo bolt with another wrench. (Apparently Honda
thinks banjo bolts are special)
4. Place a rag or shop towel over the 6 mm service bolt.
5. Slowly loosen the 6 mm service bolt one complete turn.

Note:
A fuel pressure gauge can be attached at the 6 mm service bolt hole.
Always replace the washer between the service bolt and the special banjo
bolt whenever the service bolt is loosened.
Rep-lace all washers whenever the bolts are removed.

Inspection
1. Relieve fuel pressure.
2. Remove the service bolt on the fuel filter while holding the banjo bolt
with another wrench. Attach the special tool. (I guess the banjo bolt is
jealous because now the tool is special, or should I say fuel pressure
gauge)
3. Start the engine*. Measure the fuel pressure with the engine idling and
vacuum hose of the fuel pressure regulator disconnected from the fuel
pressure regulator pinched.
Pressure should be 40-47 psi
4. Reconnect vacuum hose to the fuel pressure regulator.
Pressure should be 31-38 psi
*If the engine will not start, turn the ignition switch on, wait for two
seconds, turn it off, then back on again and read the fuel pressure.

The only thing I would suggest is that you check the idle air control valve.
This might be the culprit especially since it only runs poorly when it's
cold.

"Doc tor" <darrell_s_kelly@hotmail.com> wrote in message
news:ZbKdncdeedAx9IPfRVn-sg@wideopenwest.com...
> Good evening all, I can not find the shrader valve in the fuel rail for
> checking fuel pressure. This is a V-Tec engine. What should the pressure
> be? The engine problem is that it runs poorly, not all the time, when
> the engine is cold. Engine shakes, misses until it is warmed up. After
> that it runs good. No check engine light on.
> T.I.A.
>



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  #4 (permalink)  
Old 26 Feb 2005, 04:07 pm
Doc tor
Guest
 
Posts: n/a
Default Re: 1995 Civic EX

Mr. Nightmare wrote:
> This is straight from the Helm manual. Hope it helps.
>
> Note:
> Before disconnecting fuel pipes or hoses, release pressure from the system
> by loosening the 6 mm service bolt on top of the fuel filter.
>
> Relieving
> 1. Disconnect the battery negative cable from the battery negative
> terminal.
> 2. Remove the fuel fill cap.
> 3. Use a box end wrench on the 6 mm service bolt at the fuel filter, while
> holding the special banjo bolt with another wrench. (Apparently Honda
> thinks banjo bolts are special)
> 4. Place a rag or shop towel over the 6 mm service bolt.
> 5. Slowly loosen the 6 mm service bolt one complete turn.
>
> Note:
> A fuel pressure gauge can be attached at the 6 mm service bolt hole.
> Always replace the washer between the service bolt and the special banjo
> bolt whenever the service bolt is loosened.
> Rep-lace all washers whenever the bolts are removed.
>
> Inspection
> 1. Relieve fuel pressure.
> 2. Remove the service bolt on the fuel filter while holding the banjo bolt
> with another wrench. Attach the special tool. (I guess the banjo bolt is
> jealous because now the tool is special, or should I say fuel pressure
> gauge)
> 3. Start the engine*. Measure the fuel pressure with the engine idling and
> vacuum hose of the fuel pressure regulator disconnected from the fuel
> pressure regulator pinched.
> Pressure should be 40-47 psi
> 4. Reconnect vacuum hose to the fuel pressure regulator.
> Pressure should be 31-38 psi
> *If the engine will not start, turn the ignition switch on, wait for two
> seconds, turn it off, then back on again and read the fuel pressure.
>
> The only thing I would suggest is that you check the idle air control valve.
> This might be the culprit especially since it only runs poorly when it's
> cold.
>
> "Doc tor" <darrell_s_kelly@hotmail.com> wrote in message
> news:ZbKdncdeedAx9IPfRVn-sg@wideopenwest.com...
>
>>Good evening all, I can not find the shrader valve in the fuel rail for
>>checking fuel pressure. This is a V-Tec engine. What should the pressure
>>be? The engine problem is that it runs poorly, not all the time, when
>>the engine is cold. Engine shakes, misses until it is warmed up. After
>>that it runs good. No check engine light on.
>>T.I.A.
>>

>
>
>

Thank you so much to Halo2 Guy and Mr. Nightmare. You saved me a trip
to the library!
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