97CamryLE 181k Sold
Thanx, found it here.You need a new ECT - Engine Coolant Temperature sensor. The ECU monitors that one (there are 3) to control fuel injection, enriching the mixture on cold starts. Its a thermistor; resistance changes with temperature. Aftermarket parts seem to work fine for this. Just be sure to get the right one. Lots of sites just list it as a "coolant temperature sensor". Be sure it has two wires. The 4 cyl has another two wire temperature sensor in the radiator to control the fans. But that one is a simple on/off switch.
And a video too.