2nd gen taco thermostat upgrade

Hello, has anyone upgraded their thermostat from a 180° to a 160° and been hit with a check engine light?

 

Why would you want to go to a 160° thermostat?

There's no need, not to mention your gona use more fuel because the fuel map is richer below operating temp.

 

Why do you consider that an upgrade? Engines are engineered to run at a certain temp. If your engine doesn't reach that temp it won't run as efficient. I don't know if that would throw a code but it might.

 

Why

People have not had success with them

the hotter the engine is, the more efficient it is
Which is why it’s not efficient. Because 180 is not hot.

when it is cold you burn more fuel to warm up faster and reduce emissions. It will burn even more fuel if not all the time.

When it opens, coolant cools with the radiator and fan. It cools it. Not fails to cool it. It is not a radiator the size of a shoe with a Best Buy computer fan.

vehicles with more power creating heat such as twin turbo simply have more coolers. With controlled valves that stay closed during warm up.
Where cramped engine bays stuffing that in a small passenger car is a factor. Not a thing on the Tacoma factory engine.

don’t know about supercharged applications.

 

I have a supercharger and I find that I’m doing a fair bit of towing. Used a scanner and found that the code was telling me that the engine was running rich. Thank you for the responses

 

Better a little rich than lean. That’s for sure with boosted engines.

 

A cooler thermostat isn't gona help you there, in fact it will make it run richer yet.

If your getting a rich code you need to figure out why instead of modufying things to attempt to compensate for it.

Are you running a stock intake?

Is it tuned?

 

A CEL code, or fuel trims? If a code, diagnose and solve that problem. Dont mess with the T-stat

 

You can ask in the supercharger thread. @Torspd might know

 

Stock intake, no tune and CEL code.

My guess is that by changing the T-stat the engines running cooler and as such richer than before. I’m probably gonna switch them back once I get home and see if that does the trick.

 

If you are running a supercharger and have the stock toyota TRD tune for said supercharger you should have zero issues.

Running a cooler tstat is going to only create problems.

 

What's the CEL code first?

I've ran the URD colder thermo and now use the Motorad thermo. And haven't thrown any CELs with them.

 

Do not do the 160°. 170° max.

The 160° can create a problem with reaching the proper engine temp, and the ecu will then throw a code. May even run more rich.