Turn on the ignition, disconnect the hose from the thermal time switch off the tee and a hose of a vacuum regulator ignition Blow these hoses.
When the intake air temperature of 20 ?� C relay contacts should be open. At temperatures below 20 ?� C, the relay must be switched off about 15 seconds after the ignition is switched on.
To replace the relay Disconnect and remove the valve from the intake manifold.