at risk of oversimplifing If the sender reads colder than the engine is it
may cause the engine to run rich. or if it reads hotter it will lean the
engine. when i was working with Boush L-Jetronic systems 20 years ago I had
this one Alfa that was real strong off the line, I had tricked up the
flowmeter on this car same as the others. I had never paid any attention to
the temp sensor till one day when I looking for a electrical problem .I
discovered a low voltage signal in the unit. I changed it and the customer
came back complaining the car wasn't as fast as it had been. To make a long
story shorter through process of elimination I discovered the sender was
making the car run a bit richer than normal. as you may guess afterwards
many evenings were spent with an ohmmeter going through boxes of temp
sensors looking for the "trick ones"
rick
----- Original Message -----
From: "Scott Meyers" <solo2@uswest.net>
To: "TEAM.NET" <autox@autox.team.net>
Sent: Monday, August 28, 2000 10:18 PM
Subject: Tuning Question - bad water temp sensor effect on performance
> A little break from the Nationals discussions........
>
> I'm working on a "project car", one that will (hopefully) soon grace the
> pylon jungle. I've just finished doing the timing belt, and with that
> the water pump, cam seals, and all the hard to get to hoses and other
> stuff therein. As long as you're there, right?
>
> I also decided to change the water temp sensor "just because" it was
> old. In doing so I found serious corrosion on the two connectors,
> leaving me to believe that it was sending either *no* signal or the
> *default* message to the computer.
>
> The question - what effect on performance would a faulty water temp
> sensor have on a car's performance in a Solo 2 setting? Oh - it's a
> Nissan with factory multiport injection. :-)
>
> Thanks for any and all shared experiences.
>
> Scott Meyers
>
>
>
|