confused which sensor = cold start?
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Senior Member
Joined: Feb 2006
Posts: 682
Likes: 0
From: newcomerstown,o
Car: 91 formula
Engine: 350 tpi
Transmission: auto
Axle/Gears: poss
confused which sensor = cold start?
is it the one by the thermostat, or in drivers side head? i know one of these tells ecm what temp it outside correct? because it is cold blooded it starts right up, but i have to let it run for 5- 10 minutes b4 i even think of driving it and it isn't that cold out .
Supreme Member
Joined: Aug 2005
Posts: 3,004
Likes: 4
From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
Re: confused which sensor = cold start?
I believe the one in the head is the fan switch and the one in the intake is the coolant temp.
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: confused which sensor = cold start?
If you have an 89 vehicle with a TBI engine, you do not have a cold-start injector. They were only on 85-88 TPI engines.
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nhra-trans-am
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Sep 17, 2015 10:16 PM