[Diy_efi] coolant temperature mod

Bruce nacelp at bright.net
Thu Jun 6 13:42:22 GMT 2002



Without knowing all the coolant temp variables, your flitting with fire.
EGR enable, TCC, CCP, are all likely to be dependent on it.   In general,
not a good way to do things.
Bruce

----- Original Message -----
From: "Tom Cheung" <tcheung at associated-labels.com>
Subject: [Diy_efi] coolant temperature mod
> does anyone know anything about putting a variable resistor between the
> coolant temperature sensor and the ecu?
> i have seen mods on the net on some toyota cars where they do this to make
> the fuel mixture more rich and at the same increase the air flow sensor
from
> the MAF typically does this make the ecu adjust ignition timing since it
thinks the
> engine is colder than it really is? will it advance or retard your timing?


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