check engine code 15
check engine code 15
Howdy i had a check engine light on and i tested it and it came back code 15. Low temperature indicated at engine coolant temp sensor. what is the best way to fix this problem?? also where is this sensor located
Senior Member

Joined: Mar 2004
Posts: 923
Likes: 2
From: Bakersfield, CA
Car: 91 Z28
Engine: 383 SuperRam
Transmission: ProBuilt 700r4
Axle/Gears: G92 3.23
Re: check engine code 15
tpi or tbi? if you have the means of testing the sensor (ohm meter) then test it. if not, replace the sensor, they are like $15 bucks. on a tpi engine its located in the front of the intake manifold just above the water pump. on a tbi i don't know where its located, maybe the same place.
Re: check engine code 15
ok so it is a 305 tpi. i found the coolant sensor. however its not hooked up and plus I cant find the cable that should hook up to it or how it should be ran. this car has many loose wires... that i plan on trying to figure out where they go...
Senior Member

Joined: Mar 2004
Posts: 923
Likes: 2
From: Bakersfield, CA
Car: 91 Z28
Engine: 383 SuperRam
Transmission: ProBuilt 700r4
Axle/Gears: G92 3.23
Re: check engine code 15
it should come out of a loom on the passenger side of the throttle body along with a few other sensor wires (tps, iac, air, a/c)
Re: check engine code 15
ok so i re hooked up the sensor and code still on. so i went to the store and got a new one. put it on and the light is still on......should i pull the batter cable off again or any other ideas from yall? thanx for the help
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