Driving with disconnected ISV?
#41
Guest
Posts: n/a
Re: Driving with disconnected ISV?
Nedavno Steve Sears pise:
| No, I don't believe that it has a valve, but it should have a vent
| hose that collapses over time.
OK, thanks. I recently replaced that hose.
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| No, I don't believe that it has a valve, but it should have a vent
| hose that collapses over time.
OK, thanks. I recently replaced that hose.
--
___ ____
/__/ / \ ** Registrovani korisnik Linuksa #291606 **
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#42
Guest
Posts: n/a
Re: Driving with disconnected ISV? - Update
Update:
I disconnected ISV electrical connector, and result is that engine idles
OK when warm (50 deg Celsius or more). The higher the engine
temperature, the higher the RPM, but no more than ~900.
When I stop, rpm does not drop low to ~600 rpm and then up to ~900 and
then to normal 750 as it does with ISV connected. It just goes down to
to ~900 or less depending on engine temperature.
Am I right to assume that my problem is ISV?
How do I find out if it is exactly ISV an not some sensor somewhere that
sends wrong signals to ECU? I have oscilloscope and digital multimeter
so I would appreciate if anyone can give me details, or point me to some
url on the net with detailed specification of voltages (or any other way
to determine what is not functioning correctly).
I ordered Haynes manual from haynes.co.uk, but it has not arrived yet.
--
___ ____
/__/ / \ ** Registrovani korisnik Linuksa #291606 **
/ / \/ /\ \ ** http://counter.li.org/ **
/__/\____/--\__\ ** Reply at: iimperl - at - ml1 - dot - net **
I disconnected ISV electrical connector, and result is that engine idles
OK when warm (50 deg Celsius or more). The higher the engine
temperature, the higher the RPM, but no more than ~900.
When I stop, rpm does not drop low to ~600 rpm and then up to ~900 and
then to normal 750 as it does with ISV connected. It just goes down to
to ~900 or less depending on engine temperature.
Am I right to assume that my problem is ISV?
How do I find out if it is exactly ISV an not some sensor somewhere that
sends wrong signals to ECU? I have oscilloscope and digital multimeter
so I would appreciate if anyone can give me details, or point me to some
url on the net with detailed specification of voltages (or any other way
to determine what is not functioning correctly).
I ordered Haynes manual from haynes.co.uk, but it has not arrived yet.
--
___ ____
/__/ / \ ** Registrovani korisnik Linuksa #291606 **
/ / \/ /\ \ ** http://counter.li.org/ **
/__/\____/--\__\ ** Reply at: iimperl - at - ml1 - dot - net **
#43
Guest
Posts: n/a
Re: Driving with disconnected ISV? - Update
Update:
I disconnected ISV electrical connector, and result is that engine idles
OK when warm (50 deg Celsius or more). The higher the engine
temperature, the higher the RPM, but no more than ~900.
When I stop, rpm does not drop low to ~600 rpm and then up to ~900 and
then to normal 750 as it does with ISV connected. It just goes down to
to ~900 or less depending on engine temperature.
Am I right to assume that my problem is ISV?
How do I find out if it is exactly ISV an not some sensor somewhere that
sends wrong signals to ECU? I have oscilloscope and digital multimeter
so I would appreciate if anyone can give me details, or point me to some
url on the net with detailed specification of voltages (or any other way
to determine what is not functioning correctly).
I ordered Haynes manual from haynes.co.uk, but it has not arrived yet.
--
___ ____
/__/ / \ ** Registrovani korisnik Linuksa #291606 **
/ / \/ /\ \ ** http://counter.li.org/ **
/__/\____/--\__\ ** Reply at: iimperl - at - ml1 - dot - net **
I disconnected ISV electrical connector, and result is that engine idles
OK when warm (50 deg Celsius or more). The higher the engine
temperature, the higher the RPM, but no more than ~900.
When I stop, rpm does not drop low to ~600 rpm and then up to ~900 and
then to normal 750 as it does with ISV connected. It just goes down to
to ~900 or less depending on engine temperature.
Am I right to assume that my problem is ISV?
How do I find out if it is exactly ISV an not some sensor somewhere that
sends wrong signals to ECU? I have oscilloscope and digital multimeter
so I would appreciate if anyone can give me details, or point me to some
url on the net with detailed specification of voltages (or any other way
to determine what is not functioning correctly).
I ordered Haynes manual from haynes.co.uk, but it has not arrived yet.
--
___ ____
/__/ / \ ** Registrovani korisnik Linuksa #291606 **
/ / \/ /\ \ ** http://counter.li.org/ **
/__/\____/--\__\ ** Reply at: iimperl - at - ml1 - dot - net **
#44
Guest
Posts: n/a
Re: Driving with disconnected ISV? - Update
Update:
I disconnected ISV electrical connector, and result is that engine idles
OK when warm (50 deg Celsius or more). The higher the engine
temperature, the higher the RPM, but no more than ~900.
When I stop, rpm does not drop low to ~600 rpm and then up to ~900 and
then to normal 750 as it does with ISV connected. It just goes down to
to ~900 or less depending on engine temperature.
Am I right to assume that my problem is ISV?
How do I find out if it is exactly ISV an not some sensor somewhere that
sends wrong signals to ECU? I have oscilloscope and digital multimeter
so I would appreciate if anyone can give me details, or point me to some
url on the net with detailed specification of voltages (or any other way
to determine what is not functioning correctly).
I ordered Haynes manual from haynes.co.uk, but it has not arrived yet.
--
___ ____
/__/ / \ ** Registrovani korisnik Linuksa #291606 **
/ / \/ /\ \ ** http://counter.li.org/ **
/__/\____/--\__\ ** Reply at: iimperl - at - ml1 - dot - net **
I disconnected ISV electrical connector, and result is that engine idles
OK when warm (50 deg Celsius or more). The higher the engine
temperature, the higher the RPM, but no more than ~900.
When I stop, rpm does not drop low to ~600 rpm and then up to ~900 and
then to normal 750 as it does with ISV connected. It just goes down to
to ~900 or less depending on engine temperature.
Am I right to assume that my problem is ISV?
How do I find out if it is exactly ISV an not some sensor somewhere that
sends wrong signals to ECU? I have oscilloscope and digital multimeter
so I would appreciate if anyone can give me details, or point me to some
url on the net with detailed specification of voltages (or any other way
to determine what is not functioning correctly).
I ordered Haynes manual from haynes.co.uk, but it has not arrived yet.
--
___ ____
/__/ / \ ** Registrovani korisnik Linuksa #291606 **
/ / \/ /\ \ ** http://counter.li.org/ **
/__/\____/--\__\ ** Reply at: iimperl - at - ml1 - dot - net **
#45
Guest
Posts: n/a
Re: Driving with disconnected ISV? - Update
I do not see a thread where you described what problem you are trying to correct.
Also, What car is this?
If a T44, you might want to see numerous threads on this at Audiworld:
http://forums.audiworld.com/v8/
The ISV is operated with the ISV controller (in T44s it is in drivers side under
dash in Aux relay panel).
One input that it uses is a temp sender (on T44, I5 it is under the upper
radiotor hose)
Yvan wrote:
> Update:
>
> I disconnected ISV electrical connector, and result is that engine idles
> OK when warm (50 deg Celsius or more). The higher the engine
> temperature, the higher the RPM, but no more than ~900.
>
> When I stop, rpm does not drop low to ~600 rpm and then up to ~900 and
> then to normal 750 as it does with ISV connected. It just goes down to
> to ~900 or less depending on engine temperature.
>
> Am I right to assume that my problem is ISV?
>
> How do I find out if it is exactly ISV an not some sensor somewhere that
> sends wrong signals to ECU? I have oscilloscope and digital multimeter
> so I would appreciate if anyone can give me details, or point me to some
> url on the net with detailed specification of voltages (or any other way
> to determine what is not functioning correctly).
>
> I ordered Haynes manual from haynes.co.uk, but it has not arrived yet.
>
>
>
>
Also, What car is this?
If a T44, you might want to see numerous threads on this at Audiworld:
http://forums.audiworld.com/v8/
The ISV is operated with the ISV controller (in T44s it is in drivers side under
dash in Aux relay panel).
One input that it uses is a temp sender (on T44, I5 it is under the upper
radiotor hose)
Yvan wrote:
> Update:
>
> I disconnected ISV electrical connector, and result is that engine idles
> OK when warm (50 deg Celsius or more). The higher the engine
> temperature, the higher the RPM, but no more than ~900.
>
> When I stop, rpm does not drop low to ~600 rpm and then up to ~900 and
> then to normal 750 as it does with ISV connected. It just goes down to
> to ~900 or less depending on engine temperature.
>
> Am I right to assume that my problem is ISV?
>
> How do I find out if it is exactly ISV an not some sensor somewhere that
> sends wrong signals to ECU? I have oscilloscope and digital multimeter
> so I would appreciate if anyone can give me details, or point me to some
> url on the net with detailed specification of voltages (or any other way
> to determine what is not functioning correctly).
>
> I ordered Haynes manual from haynes.co.uk, but it has not arrived yet.
>
>
>
>
#46
Guest
Posts: n/a
Re: Driving with disconnected ISV? - Update
I do not see a thread where you described what problem you are trying to correct.
Also, What car is this?
If a T44, you might want to see numerous threads on this at Audiworld:
http://forums.audiworld.com/v8/
The ISV is operated with the ISV controller (in T44s it is in drivers side under
dash in Aux relay panel).
One input that it uses is a temp sender (on T44, I5 it is under the upper
radiotor hose)
Yvan wrote:
> Update:
>
> I disconnected ISV electrical connector, and result is that engine idles
> OK when warm (50 deg Celsius or more). The higher the engine
> temperature, the higher the RPM, but no more than ~900.
>
> When I stop, rpm does not drop low to ~600 rpm and then up to ~900 and
> then to normal 750 as it does with ISV connected. It just goes down to
> to ~900 or less depending on engine temperature.
>
> Am I right to assume that my problem is ISV?
>
> How do I find out if it is exactly ISV an not some sensor somewhere that
> sends wrong signals to ECU? I have oscilloscope and digital multimeter
> so I would appreciate if anyone can give me details, or point me to some
> url on the net with detailed specification of voltages (or any other way
> to determine what is not functioning correctly).
>
> I ordered Haynes manual from haynes.co.uk, but it has not arrived yet.
>
>
>
>
Also, What car is this?
If a T44, you might want to see numerous threads on this at Audiworld:
http://forums.audiworld.com/v8/
The ISV is operated with the ISV controller (in T44s it is in drivers side under
dash in Aux relay panel).
One input that it uses is a temp sender (on T44, I5 it is under the upper
radiotor hose)
Yvan wrote:
> Update:
>
> I disconnected ISV electrical connector, and result is that engine idles
> OK when warm (50 deg Celsius or more). The higher the engine
> temperature, the higher the RPM, but no more than ~900.
>
> When I stop, rpm does not drop low to ~600 rpm and then up to ~900 and
> then to normal 750 as it does with ISV connected. It just goes down to
> to ~900 or less depending on engine temperature.
>
> Am I right to assume that my problem is ISV?
>
> How do I find out if it is exactly ISV an not some sensor somewhere that
> sends wrong signals to ECU? I have oscilloscope and digital multimeter
> so I would appreciate if anyone can give me details, or point me to some
> url on the net with detailed specification of voltages (or any other way
> to determine what is not functioning correctly).
>
> I ordered Haynes manual from haynes.co.uk, but it has not arrived yet.
>
>
>
>
#47
Guest
Posts: n/a
Re: Driving with disconnected ISV? - Update
I do not see a thread where you described what problem you are trying to correct.
Also, What car is this?
If a T44, you might want to see numerous threads on this at Audiworld:
http://forums.audiworld.com/v8/
The ISV is operated with the ISV controller (in T44s it is in drivers side under
dash in Aux relay panel).
One input that it uses is a temp sender (on T44, I5 it is under the upper
radiotor hose)
Yvan wrote:
> Update:
>
> I disconnected ISV electrical connector, and result is that engine idles
> OK when warm (50 deg Celsius or more). The higher the engine
> temperature, the higher the RPM, but no more than ~900.
>
> When I stop, rpm does not drop low to ~600 rpm and then up to ~900 and
> then to normal 750 as it does with ISV connected. It just goes down to
> to ~900 or less depending on engine temperature.
>
> Am I right to assume that my problem is ISV?
>
> How do I find out if it is exactly ISV an not some sensor somewhere that
> sends wrong signals to ECU? I have oscilloscope and digital multimeter
> so I would appreciate if anyone can give me details, or point me to some
> url on the net with detailed specification of voltages (or any other way
> to determine what is not functioning correctly).
>
> I ordered Haynes manual from haynes.co.uk, but it has not arrived yet.
>
>
>
>
Also, What car is this?
If a T44, you might want to see numerous threads on this at Audiworld:
http://forums.audiworld.com/v8/
The ISV is operated with the ISV controller (in T44s it is in drivers side under
dash in Aux relay panel).
One input that it uses is a temp sender (on T44, I5 it is under the upper
radiotor hose)
Yvan wrote:
> Update:
>
> I disconnected ISV electrical connector, and result is that engine idles
> OK when warm (50 deg Celsius or more). The higher the engine
> temperature, the higher the RPM, but no more than ~900.
>
> When I stop, rpm does not drop low to ~600 rpm and then up to ~900 and
> then to normal 750 as it does with ISV connected. It just goes down to
> to ~900 or less depending on engine temperature.
>
> Am I right to assume that my problem is ISV?
>
> How do I find out if it is exactly ISV an not some sensor somewhere that
> sends wrong signals to ECU? I have oscilloscope and digital multimeter
> so I would appreciate if anyone can give me details, or point me to some
> url on the net with detailed specification of voltages (or any other way
> to determine what is not functioning correctly).
>
> I ordered Haynes manual from haynes.co.uk, but it has not arrived yet.
>
>
>
>
#48
Guest
Posts: n/a
Re: Driving with disconnected ISV? - Update
Nedavno Tony pise:
| I do not see a thread where you described what problem you are trying
| to correct.
I have problem that I briefly described in my previous post. When I
stop the car rpm drops to some 500-600 and then sometimes stalls, and
sometimes goes up to 900-1000 and then back to standard 750.
| Also, What car is this?
1989 Audi 100 2.3E (NF 5-Cyl. engine).
| If a T44, you might want to see numerous threads on this at Audiworld:
| http://forums.audiworld.com/v8/
It is not V8.
| The ISV is operated with the ISV controller (in T44s it is in drivers
| side under dash in Aux relay panel).
|
| One input that it uses is a temp sender (on T44, I5 it is under the
| upper radiotor hose)
I found some instructions here:
http://www.sjmautotechnik.com/troubl...r.html#mixture
but it seems it is not for my NF 5-Cyl. engine. But I am going to test
it like this anyway.
--
___ ____
/__/ / \ ** Registrovani korisnik Linuksa #291606 **
/ / \/ /\ \ ** http://counter.li.org/ **
/__/\____/--\__\ ** Reply at: iimperl - at - ml1 - dot - net **
| I do not see a thread where you described what problem you are trying
| to correct.
I have problem that I briefly described in my previous post. When I
stop the car rpm drops to some 500-600 and then sometimes stalls, and
sometimes goes up to 900-1000 and then back to standard 750.
| Also, What car is this?
1989 Audi 100 2.3E (NF 5-Cyl. engine).
| If a T44, you might want to see numerous threads on this at Audiworld:
| http://forums.audiworld.com/v8/
It is not V8.
| The ISV is operated with the ISV controller (in T44s it is in drivers
| side under dash in Aux relay panel).
|
| One input that it uses is a temp sender (on T44, I5 it is under the
| upper radiotor hose)
I found some instructions here:
http://www.sjmautotechnik.com/troubl...r.html#mixture
but it seems it is not for my NF 5-Cyl. engine. But I am going to test
it like this anyway.
--
___ ____
/__/ / \ ** Registrovani korisnik Linuksa #291606 **
/ / \/ /\ \ ** http://counter.li.org/ **
/__/\____/--\__\ ** Reply at: iimperl - at - ml1 - dot - net **
#49
Guest
Posts: n/a
Re: Driving with disconnected ISV? - Update
Nedavno Tony pise:
| I do not see a thread where you described what problem you are trying
| to correct.
I have problem that I briefly described in my previous post. When I
stop the car rpm drops to some 500-600 and then sometimes stalls, and
sometimes goes up to 900-1000 and then back to standard 750.
| Also, What car is this?
1989 Audi 100 2.3E (NF 5-Cyl. engine).
| If a T44, you might want to see numerous threads on this at Audiworld:
| http://forums.audiworld.com/v8/
It is not V8.
| The ISV is operated with the ISV controller (in T44s it is in drivers
| side under dash in Aux relay panel).
|
| One input that it uses is a temp sender (on T44, I5 it is under the
| upper radiotor hose)
I found some instructions here:
http://www.sjmautotechnik.com/troubl...r.html#mixture
but it seems it is not for my NF 5-Cyl. engine. But I am going to test
it like this anyway.
--
___ ____
/__/ / \ ** Registrovani korisnik Linuksa #291606 **
/ / \/ /\ \ ** http://counter.li.org/ **
/__/\____/--\__\ ** Reply at: iimperl - at - ml1 - dot - net **
| I do not see a thread where you described what problem you are trying
| to correct.
I have problem that I briefly described in my previous post. When I
stop the car rpm drops to some 500-600 and then sometimes stalls, and
sometimes goes up to 900-1000 and then back to standard 750.
| Also, What car is this?
1989 Audi 100 2.3E (NF 5-Cyl. engine).
| If a T44, you might want to see numerous threads on this at Audiworld:
| http://forums.audiworld.com/v8/
It is not V8.
| The ISV is operated with the ISV controller (in T44s it is in drivers
| side under dash in Aux relay panel).
|
| One input that it uses is a temp sender (on T44, I5 it is under the
| upper radiotor hose)
I found some instructions here:
http://www.sjmautotechnik.com/troubl...r.html#mixture
but it seems it is not for my NF 5-Cyl. engine. But I am going to test
it like this anyway.
--
___ ____
/__/ / \ ** Registrovani korisnik Linuksa #291606 **
/ / \/ /\ \ ** http://counter.li.org/ **
/__/\____/--\__\ ** Reply at: iimperl - at - ml1 - dot - net **
#50
Guest
Posts: n/a
Re: Driving with disconnected ISV? - Update
Nedavno Tony pise:
| I do not see a thread where you described what problem you are trying
| to correct.
I have problem that I briefly described in my previous post. When I
stop the car rpm drops to some 500-600 and then sometimes stalls, and
sometimes goes up to 900-1000 and then back to standard 750.
| Also, What car is this?
1989 Audi 100 2.3E (NF 5-Cyl. engine).
| If a T44, you might want to see numerous threads on this at Audiworld:
| http://forums.audiworld.com/v8/
It is not V8.
| The ISV is operated with the ISV controller (in T44s it is in drivers
| side under dash in Aux relay panel).
|
| One input that it uses is a temp sender (on T44, I5 it is under the
| upper radiotor hose)
I found some instructions here:
http://www.sjmautotechnik.com/troubl...r.html#mixture
but it seems it is not for my NF 5-Cyl. engine. But I am going to test
it like this anyway.
--
___ ____
/__/ / \ ** Registrovani korisnik Linuksa #291606 **
/ / \/ /\ \ ** http://counter.li.org/ **
/__/\____/--\__\ ** Reply at: iimperl - at - ml1 - dot - net **
| I do not see a thread where you described what problem you are trying
| to correct.
I have problem that I briefly described in my previous post. When I
stop the car rpm drops to some 500-600 and then sometimes stalls, and
sometimes goes up to 900-1000 and then back to standard 750.
| Also, What car is this?
1989 Audi 100 2.3E (NF 5-Cyl. engine).
| If a T44, you might want to see numerous threads on this at Audiworld:
| http://forums.audiworld.com/v8/
It is not V8.
| The ISV is operated with the ISV controller (in T44s it is in drivers
| side under dash in Aux relay panel).
|
| One input that it uses is a temp sender (on T44, I5 it is under the
| upper radiotor hose)
I found some instructions here:
http://www.sjmautotechnik.com/troubl...r.html#mixture
but it seems it is not for my NF 5-Cyl. engine. But I am going to test
it like this anyway.
--
___ ____
/__/ / \ ** Registrovani korisnik Linuksa #291606 **
/ / \/ /\ \ ** http://counter.li.org/ **
/__/\____/--\__\ ** Reply at: iimperl - at - ml1 - dot - net **