hi guys
i have a 94 e420 ikeep getting codes 6 19 20 on car could someone help me out also temp keeps rising when the car sits still for a few minutes but once car starts it kind of cools off. iam going to to change my spark plug wires, thermostat, oxygen sensor. could someone help with codes n other issues

Is the only problem the rising heat? This is probably for the AC, the auxiliary fans are not starting, probably because the water temperature sensor is faulty. Part# could be this one A0065451524

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On what pin are you getting these codes?

Also, the temperature will rise until it hits the fan thermostat set point, which I believe is 105 C, then the fans will come on and cool it back down. Are the fans not coming on at the set point?

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only one fan comes on and its the one on the passenger side when temp get up there. i got the codes from my little black box with the blinking light. changed my wires,oxygen sensor it ran great but now i have a little ticking on driver side, an it has a small miss. the plugs were changed a couple months ago