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Throttle position sensor. 164 Q4 with EGR.

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Throttle position sensor. 164 Q4 with EGR.

Postby Romuald » Tue Nov 14, 2017 3:50 pm

Hello! I have a problem with idling the engine. I'm worried about the throttle position sensor. What should be the resistance at the contacts with the throttle closed? 164 Q4 with EGR. Thank you.
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Re: Throttle position sensor. 164 Q4 with EGR.

Postby Romuald » Thu Nov 16, 2017 1:41 pm

Please, if possible, measure the resistance on your sensors if your machines have no problems with the engine. Thank you.
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Re: Throttle position sensor. 164 Q4 with EGR.

Postby Alfan » Mon Nov 27, 2017 4:43 pm

I will have a look next time I am in the garage, but that might not be before end of next week.
1994 Alfa Romeo 164 Q4 Proteo Rosso 550.000km
1989 Lancia Thema 8.32 Verde Indy 265.000km
2001 Alfa Romeo Spider 3.0 24V Blue Lightning 55.000km
2015 Alfa Romeo 4C Rosso Competizione 80.000km
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Re: Throttle position sensor. 164 Q4 with EGR.

Postby Alfan » Thu Dec 21, 2017 10:21 am

I forgot about this :( I will not be in the garage until beginning of next year, but maybe you figured it out?
1994 Alfa Romeo 164 Q4 Proteo Rosso 550.000km
1989 Lancia Thema 8.32 Verde Indy 265.000km
2001 Alfa Romeo Spider 3.0 24V Blue Lightning 55.000km
2015 Alfa Romeo 4C Rosso Competizione 80.000km
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Alfan
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Re: Throttle position sensor. 164 Q4 with EGR.

Postby Romuald » Fri Dec 22, 2017 12:57 pm

Alfan wrote:I forgot about this :( I will not be in the garage until beginning of next year, but maybe you figured it out?

https://youtu.be/PbRz5a_tSnQ

No :( The motor works very poorly. There was an icon "check the engine" in the form of an injector. If you increase the speed by pressing the pedal, the "check engine" icon disappears. At the moment I can not find a working program for diagnostics.
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Re: Throttle position sensor. 164 Q4 with EGR.

Postby Alfan » Sun Dec 24, 2017 10:52 am

I thought that the check engine light was not connected in the Q4, it isn't in mine.

Have you tried unplugging the air mass meter? What about spraying start gas around the intake pipes to see if idle changes?

Are you not able to download Wilco's diagnostic SW? I just tried downloading from the first page in his thread without problems.
1994 Alfa Romeo 164 Q4 Proteo Rosso 550.000km
1989 Lancia Thema 8.32 Verde Indy 265.000km
2001 Alfa Romeo Spider 3.0 24V Blue Lightning 55.000km
2015 Alfa Romeo 4C Rosso Competizione 80.000km
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Alfan
Q4 owner
 
Posts: 1084
Joined: Thu Oct 22, 2009 8:20 pm
Location: Denmark
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Re: Throttle position sensor. 164 Q4 with EGR.

Postby Alfan » Wed Jan 03, 2018 7:51 pm

I am going to the garage this weekend, will try to remember measuring this! Even though it is without EGR, I think it is the same part.
1994 Alfa Romeo 164 Q4 Proteo Rosso 550.000km
1989 Lancia Thema 8.32 Verde Indy 265.000km
2001 Alfa Romeo Spider 3.0 24V Blue Lightning 55.000km
2015 Alfa Romeo 4C Rosso Competizione 80.000km
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Alfan
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Posts: 1084
Joined: Thu Oct 22, 2009 8:20 pm
Location: Denmark
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Re: Throttle position sensor. 164 Q4 with EGR.

Postby Alfan » Thu Jan 04, 2018 5:00 pm

Have a look at the attached docs, this should provice the info you need.
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Farnell-TPS-Bosch0280122001.pdf
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TPS-Bosch0280122001.pdf
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1994 Alfa Romeo 164 Q4 Proteo Rosso 550.000km
1989 Lancia Thema 8.32 Verde Indy 265.000km
2001 Alfa Romeo Spider 3.0 24V Blue Lightning 55.000km
2015 Alfa Romeo 4C Rosso Competizione 80.000km
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Alfan
Q4 owner
 
Posts: 1084
Joined: Thu Oct 22, 2009 8:20 pm
Location: Denmark
Country: Denmark (dk)

Re: Throttle position sensor. 164 Q4 with EGR.

Postby Romuald » Thu Jan 04, 2018 9:15 pm

Alfan wrote:Have a look at the attached docs, this should provice the info you need.

Hello! Thank you so much! Symptoms indicate an air mass meter. In two weeks I will receive a new flow meter. I had doubts, since I changed it recently, but it was very inexpensive, so, probably, immediately after installation, it stopped working.
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Re: Throttle position sensor. 164 Q4 with EGR.

Postby Romuald » Wed Jan 10, 2018 11:30 pm

The reason is not in the flow meter! I did not put the gasket correctly ))

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Re: Throttle position sensor. 164 Q4 with EGR.

Postby Alfan » Thu Jan 11, 2018 10:27 am

A simple fix - when you know what to look for! Glad that you found it :)

I clicked on your photo and got redirected to a not so nice site...!!! I suggest you just add photos...
1994 Alfa Romeo 164 Q4 Proteo Rosso 550.000km
1989 Lancia Thema 8.32 Verde Indy 265.000km
2001 Alfa Romeo Spider 3.0 24V Blue Lightning 55.000km
2015 Alfa Romeo 4C Rosso Competizione 80.000km
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Alfan
Q4 owner
 
Posts: 1084
Joined: Thu Oct 22, 2009 8:20 pm
Location: Denmark
Country: Denmark (dk)

Re: Throttle position sensor. 164 Q4 with EGR.

Postby Romuald » Thu Jan 11, 2018 3:44 pm

Alfan wrote:A simple fix - when you know what to look for!

Yeah )))
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