Engine Senders Setup - Getting Indications to Read Correctly
When you suspect an engine sender is not reading correctly, the steps to correct the problem are as follows:
STEP 1: CHECK GROUNDING TO ENGINE BLOCK
95% of all engine sender reading trouble is cause by insufficient Reference Ground to Engine Block. Please read this article for more on this.
STEP 2: CHECK WIRING AND CONNECTIONS
Often reverse polarity or incorrect wiring is the cause of misreading engine senders.
STEP 3: CHECK SETTINGS
Since many of these instruments are setup to connect to a wide variety of senders, it is important to make sure the setups are correct. Incorrect settings will result in incorrect readings.
Select the sender you are having trouble with here:
- RPM (Tach)
- Oil Temperature:
- Oil Pressure:
- Coolant Temp (Water)
- Fuel Pressure:
CHT Thermocouple Probe Wiring and Setup
Attached are settings and wiring connections for Cylinder Head Temperature senders. This guide can be used to help if you are experiencing problems or if you suspect your CHTs are reading incorrectly. Remember to follow these 3 Steps first when ...
EGT Thermocouple Probe Wiring and Setup
Attached are settings and wiring connections for Exhaust Gas Temperature senders. This guide can be used to help if you are experiencing problems or if you suspect your EGTs are reading incorrectly. Remember to follow these 3 Steps first when ...
Grounding Instructions - Engine Senders and Probes Reading Incorrectly
If your Oil Pressure, Oil Temperature, CHT, EGT or RPM / Tach is reading incorrectly (low, high, intermittent), the very first thing to check is the Reference Ground to the Engine Block. About 95% of all sender reading troubles are related to ...
RDAC XB and XD Reference Ground to Engine Block
With the RDAC XB or XD, the Reference Ground wire is the Black Ground wire that comes out the top of the RDAC, together with the Red Power Supply Wire. This wire should go straight to the Engine Block. Note: It is acceptable to Setup a Ground Bus on ...
RDAC XF and XF MAP Reference Ground to Engine Block
The RDAC XF and XF MAP Pins 5 and 9 on the DB9 connector are connected Directly to Engine Block Ground Note: It is acceptable to Setup a Ground Bus on the Firewall where all of your senders that require an Engine Block Ground are Grounded. This Bus ...