TRD thermostat

[RON]

I'm putting one in this week (SC car). Question>>>

Can this mod pull CEL? I wouldn't think so...just checking.

P0116 – Engine Coolant Temperature (ECT) circuit range/performance problem
· ECT sensor malfunction
· Cooling system problem

Thanks
RON

[grnsolara]

I put one in a few weeks ago, and I haven't seen any code pop up thus far.

[Mole]

no codes will be set off...

imho, it's just for looks.

[trd4life]

Lol def. not just for looks.

[alltrac92]

imho, it's just for looks.

OP said thermostat not radiator cap.

[RON]

UPdate...

Just installed it and drove around in HOT weather here in LA...definitely brought the temp down and KEPT it down. Prior to the mod, I noted that my gauge was VERY steady at a point on the *thermometer logo* which I noted, so I could SEE the amount of drop on the gauge. It went from *3:00* to *3:30*. I was in stop and go traffic too. It did tend to rise after a while, but when I took it back up on the fwy, it dropped back. I would say the temps are down an average of 15 degrees. My fans are at the stock settings too.

[5sfe]

your car sounds just fine, just keep an eye on it for awhile

[RON]

One thing I noticed is that at a stop (after warm up), the car idles around 40 RPM lower! Any thoughts?

[5sfe]

normal

[lexmex]

I've used one for about 3.5 years in my RX300 and never had an issue with it, no CELs or anything else. It can sometimes take up to a week of driving for everything to work itself out, but don't read too much into any one thing.

The only thing I really found out was a slight decline in the temperature gauge, generally stayed right in the middle or lower. I also use coolant additives (like WaterWetter, though now I am using Purple Ice) and have a Tom's Radiator Cap.