Addition to 4kq eng perf. conditions
benswann at comcast.net
Tue Dec 17 15:33:55 EST 2002
No - I got confused on this too before. Recently posted re. the
difference, along with Huw. The Thermo-time switch is located in back
of the head, and based on temp and time, lets the cold start injector
fire, or not.
The FI thermo sensor/sender is in the same location as the thermo-
switch was in the CIS 5 cyl engines. The CIS-E FI sender signal goes
to the ECU. The earlier CIS thermo switch controls vacuum to the CIS
warmup/control pressure regulator.
Confusing? Yes especially when that location has the MF temp sensor
for the 5000 turbos and NF/NG motors.
----- Original Message -----
From: CTDiesel at aol.com
Date: Tuesday, December 17, 2002 1:36 pm
Subject: Re: Addition to 4kq eng perf. conditions
> Isnt that also called the thermo-time switch. I screws into the
> housing and the tip is in the coolant. There is a wire that goes
from that to the cold start valve right? Well i unplugged the switch
and noticed a significant difference and the car wouldn't hardly go
until i plugged it back in. So I figure that switch is working ok.
***** Not necessarily.****
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