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knock sensor

Guest

By Guest
in Legacy & Outback

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Guest

Guest

Posted
Posted

anyone know where and how do you locate the knock sensor to a more "easy to get to" place??

also how do you know when a coil pack from the early legacys are stuffed??...mine have very very fine cracks like thinner than a strand of your hair..maybe a couple on each end of the coils. Would they need replacing..??

cheers

Koom Like a Boss

Koom

Posted
Posted

You could always mount your knock sensor to the firewall. But then its not going to do anything.......

It needs to be where it is so that it can pick up noises from the cylinders. Can't really put it anywhere but where it currently lives.

r.e. Coils. Does your car missfire? Or have you just spotted cracks while servicing?

BC5RA Authority

BC5RA

Posted
Posted

If you intend to increase boost to about 1 bar then it's mandatory to replace your coils.

Especially if the coils are the OE.

Guest

Guest

Posted
Posted

ok so the sensor stays where it is...as for the coils they have been causing the engine to miss.....and yeah the boost has been increased to 1bar...Im thinking of the HE715 bosch coils I think thats the part number. What do you think ?? thanks for the info btw

Koom Like a Boss

Koom

Posted
Posted

The bosch coils are reputed to be a good mod to fix the problem of cracked coils. I ran my factory RS coils for at least 18 months while running 1 Bar through the motor and never had a problem with misfiring though. I don't think they're that expensive to get hold of some half decent second hand ones. Just a bit of a lottery though.

Guest

Guest

Posted
Posted

early coils are two bolt, while the wrx mount with a single bolt, its possible they would still fit though I guess.

BC5RA Authority

BC5RA

Posted
Posted

You can get lucky with 2nd hand coils, but you might as well change them now.

I run HEC716 with custom leads, and have had no misfiring problems and enables me to run higher than 16psi.

In regards to using single bolt WRX coils; they are the same as RS 2 bolt coils.

Ultimately the Bosch will be a better spark.

Guest

Guest

Posted
Posted

anyone know where to find the tutorial that was floating around on some other subaru forums a while back explaining the bosch coil conversion....It was in a pdf file...

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