If the connector has a bent pin, the ECM will think it's a bad part. That's why you " verify " the data you have. Or it will lead around in circles. It's not the final answer, it data to help you get the answer.
1989 chevy silverado 1500
- Thread starter zackaryikerd
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
zackaryikerd
Newbie
I've checked the connector as well no corrosion and no pins are bent
zackaryikerd
Newbie
Also getting the correct amount of voltage to the sensor
Sean Buick 76
I'm Awesome
Hookup a proper scan tool to monitor things instead of a code reader.
zackaryikerd
Newbie
I will do that thank you for the help
WHAT IS THE CODE NUMBER that the computer has stored? 14? 15? Something else?
That's the coolant temperature sensor.
1. Do you have an actual scan tool, or just a crappy "code reader". There is a HUGE difference.
2. The code does not tell you to change the sensor. It tells you that there's a problem with that circuit--which MIGHT be a defective sensor, it might be defective connectors or wire harness, or it might be a defective computer. It could also be a failed thermostat that doesn't keep the engine at a normal operating temperature. It might be indicating a low coolant level that doesn't get the temperature sensor "wet".
More diagnosis needed. A scan tool or scan tool simulator will be helpful.
Download the service manual set for your vehicle, follow the diagnostic procedure for the code you're getting.
Last edited:
Russ B
Newbie
Any chance you pulled the distributor? If you did, perhaps a tooth off. If not how much slack in rotor movement. I would recommend change out distributor as it comes with electronic control unit that might be cause of problem.
Did you check base idle (disconnect wires at firewall)?
Condition of crank pulley for rotted damper rubber.
Did you check base idle (disconnect wires at firewall)?
Condition of crank pulley for rotted damper rubber.
As Schurkey said coolant low , wiring, connections ? What about continuity ? You can have voltage and ground but is it going thru sensor or connection ? Does voltage or resistance measurement change from where it starts to where it is read by ecm ? Is it the same reading or measurement when measured with a dvm and compared to scan data ?
Similar threads
Staff online
-
kennythewelderOfficially Retired, B31-3 (6-G) certified welder.
Members online
- Elff
- 99xcss4
- ctbhess
- Lowrado09
- TheTruckOfTheseus
- Bduck44
- AuroraGirl
- Drunkcanuk
- OBSOkie
- Carlosm86
- gmt400wt
- KansasOBS
- Justsomeguy
- Cadillacmak
- Three6
- 1990Z71Swede
- denverdriveby
- Charlesteneows
- getfknlost
- 1998_K1500_Sub
- alvaroemg
- caw_86
- Badluckbandit
- DR CHOP
- fourleafslover
- kennythewelder
- mconner533
- AlaRado
- studigggs
- movietvet
- RichLo
- jus10inbrla
- Joeyatwell5
- Doppleganger
- bc-chris
- vince72
- JJ_TURBO
- yesyesyesges
- spoisel