Resistor for EGR temp sensor?

Your premier source for information on the Turbo KA: KA24E-T and KA24DE-T (KA with aftermarket turbo kit)!
User avatar
rn240sx
Posts: 891
Joined: Mon Jan 05, 2004 6:15 pm
Car: 12 Frontier V6 (supercharged)
98 240sx ka-t (fully built)
09 Ninja 650R
06 Suzuki S40
15 Hyundai Santa-Fe 2.0T
Contact:

Post

deviousKA wrote:Im not exactly sure of what resistance is needed to trick the circuit, but there is an easy way to find out.

Get the car to full operating temp with the EGR hooked up and make sure no codes are thrown. While still at full temperature, unplug the EGR temp connection and simply measure the resistance.

1/4 watt resistor is fine.

The problem most are probably having is matching the resistance of the sensor when cold. The ecu begins reading the voltage only after a certain coolant temperature, so with this configuration it would be sensing as cold when it should be at full temp, throwing a CEL.
According to the FSM the "acceptable" range for resistance on the EGR sensor is between 570k - 700k ohms, which indicates ~122 deg FThe minimum is 80k-100k ohms which is ~212 deg FThe max is 7.9M-9.7M ohms which is ~32 deg F

So i personally would use a 600k ohm resistor and go from there...


User avatar
deviousKA
Posts: 1355
Joined: Tue Aug 12, 2003 5:04 pm
Car: 90 240sx NA /72 Datsun 510 NA /86 corolla GTS NA
Contact:

Post

Sounds good,


User avatar
JDS Performance
Posts: 1365
Joined: Sun Jun 04, 2006 1:31 pm

Post

see this is where you lost methe 100k ohm 1/4 watt resistor has only 2 endsdo I cut the wires and wire them to the resitor and not use the sensor?or do I need 2 resistors and wire it back up to the sensor? and just have 2 resistors runninf inline on each wire?Thanx


Return to “KA24ET / KA24DET Forum”