Dtc p26ab

[StoneDude76]

Does anyone know about this? I googled it and it says it's the coolant bypass valve. I have a 170* thermostat and removed all but two of my grill shutters. I also have a Hemifever tune. Could this be causing my DTC?

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[BlownGP]

Pretty sure it's the 170 thermostat..
Trucks not warming up fast enough and PCM thinks somethings wrong.

 

[Jmhm17]

bump it up to a 180. I dont think you go into closed loop until 180-185. However, I thought those cycles were tuned. Did you tell Sean that you have a 170 tstat?

 

[StoneDude76]

Yea he knows. But I did see that there have been issues with the valve also. All my temperatures look like they should with the mods I have. I'll just keep a eye on it.

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