sould be on the manifold
problem with the coolant sensor check the connection on the sensor reset your OBD I code if that don't work replace the coolant sensor
Here's a link to a schematic and instructions on replacing the coolant sensor (from the Auto Zone website) http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c15280067b92 Good luck!
code 15 coolant temp sensor low temp indicated change cts sensor or test with multi meter
intake manifold vaccum leak
The intake air temperature sensor is built into the MAF sensor on a 1991 Nissan pickup. It is between the air box and the throttle body.
Green coolant (prestone, etc)
No it does not. Chevy did not use them in that year on there trucks.
The coolant gauge temp sensor is a one wire sensor located on the right rear of the engine block.
By the thermostat
The sensor for the engine coolant on a 1991 Ford Probe LX is inside of the coolant tank. There is a lever, and when the fluid gets below this lever, it signals to be checked. It should be refilled.
It sure will.
1991 probably doesn't have a crank sensor, it probably has a reference in the distributor.
where the map sensor on 98 blazer?
replace the ecm
No crank sensor, just the pick up plate in the distributor.
Which temperature sensor? There is an air-fuel charge sensor, and a coolant temp sensor.
No crank sensor on a 1990, only the pickup plate (cam sensor) in the distributor. how about a 1991?
That year did not have a MAF sensor / Mass air flow sensor.
On the engine block, near the thermostat housing.
Usually the front of the cyl. head.
coolant temp sensor
In front of the intake manifold on the coolant tube