MUNCH if you used the one on the manifold for your water temp gauge then just split it and use the one for the fan off of that How much more accurate than that can you get vette59jdwl
MUNCH if you used the one on the manifold for your water temp gauage then just split it and use the one for the fan off of that How much more accurate than that can you get vette59jdwl
How does the passenger side head between 6 and 8 look?Are you using (3) sending units? One for the fan on/off, one for dash temp gauge and one for the EFI (open/closed loop) sensor?
Quote from: EDNY on August 03, 2016, 07:15:28 PMHow does the passenger side head between 6 and 8 look?Are you using (3) sending units? One for the fan on/off, one for dash temp gauge and one for the EFI (open/closed loop) sensor?Ed,I will look at the passenger side.That is correct, I am using 3 units as described.
Quote from: munch on August 04, 2016, 10:48:49 AMQuote from: EDNY on August 03, 2016, 07:15:28 PMHow does the passenger side head between 6 and 8 look?Are you using (3) sending units? One for the fan on/off, one for dash temp gauge and one for the EFI (open/closed loop) sensor?Ed,I'm surprised the EFI system doesn't use the temp sending to control the temp gauge and fan on/off relay via the ECM like an OEM GM EFI does. That's how I control my EFI conversions.I will look at the passenger side.That is correct, I am using 3 units as described.
Quote from: EDNY on August 03, 2016, 07:15:28 PMHow does the passenger side head between 6 and 8 look?Are you using (3) sending units? One for the fan on/off, one for dash temp gauge and one for the EFI (open/closed loop) sensor?Ed,I'm surprised the EFI system doesn't use the temp sending to control the temp gauge and fan on/off relay via the ECM like an OEM GM EFI does. That's how I control my EFI conversions.I will look at the passenger side.That is correct, I am using 3 units as described.
Looking at the charts you can eliminate your current on/off fan sensor and install the kit supplied temp sensor. The yellow/black temp sensor wire goes to the ECM on the throttle body.When the engine reaches a set temperature the engine goes to closed loop and the O2 sensor and ECM take over managing the fuel delivery. The yellow wire coming from the connector goes to the fan relay to supply ground to circuit 85 on the relay.When the engine reaches a fan pre-set temp, the ECM sends a ground signal (yellow wire) to circuit 85 on the relay. The relay gets it's fused ignition power via circuit 86. As the relay is grounded via 85 the circuit closes powering the electric fan to cool the engine (just like an OEM ECM).You need to use a relay to power the fan and maybe you are already using one to power your current fan? Is your fan 1 or 2 speed?
Can't read the diagrams but you are probably using the top drawing with single speed fan, so disregard the bottom drawing it's for a (2) speed fan setup. From the pdf link you listed earlier..the yellow wire is the "signal ground" from the ECM to the "fan relay".If you already have a "working electric fan setup" using a block sending sensor (on/off only) that activates the fan AND IF THE FAN IS ALREADY USING A RELAY you just need to remove the wire from the current fan on/off sensor and attach the yellow wire from your EFI connector to it. The ECM will then send the ground signal to the relay (#85) instead of the old fan on/off sensor doing it. (Old fan on/off sensor is no longer needed)Look at the attached drawing again Fan #1 (85) is the yellow wire you are talking about...
I just called the company...your EFI setup can be programed to turn the fan on at any temp you want. You don't need the sending unit in the SPAL kit and looking at the diagrams...you really only needed a relay with whip.Option 1: If you already have an electric fan using a on/off sensor and relay..just remove the sensor and connect the wire to the yellow wire on the 6 pin connector..that's it. You need to install the EFI temp sensor and connect it via the blk & yellow wire connector.Option 2: If you are connecting the electric for the first time, install the supplied EFI kit temp sending unit in the block, the black yellow connector then connects to the ECM on the throttle body.Now take the yellow wire from the 6 pin connector & connect that yellow wire to the grey one in the SPAL kit that's it (don't use the SPAL sending unit. That pictured optional fan bypass is handy but not required.In the end..you only need (2) sending units: The one supplied with the EFI kit and the (existing) one used for the dash temperature gauge.
Stats Of Website