coolant change and now 4 dtc's

**motorking** · 02-25-2011

Originally Posted by vailskier3

did my coolant change today, and when i started her up with the new green prestone coolant, i threw these codes. any ideas why?

[PCM] P0116 - Engine Coolant Temperature (ECT) Sensor Performance (Old) (Immature)
[PCM] P0134 - HO2S Circuit Insufficient Activity Bank 1 Sensor 1 (SES) (Pending) (History) (Immature)
[PCM] P0520 - Engine Oil Pressure Sensor/Switch Circuit Malfunction (History) (Immature)
[PCM] P2432 - Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low (Pending) (Old) (History) (Current) (Immature)

Hi,
I am the tech manager at Prestone and a mechanic as well. I doubt any of these are related to changing your coolant. If you tell me the year of your car and send your email address to me at Jay.Buckley@Honeywell.com, I will look up and email you troubleshooting instructions for each code.

**BillBoost37** · 02-25-2011

Being that you changed coolant.. check the grounds on the front of the transmission. Also check your fuses.

This shouldn't be a head gasket, especially since they are the least common gasket to ever go on these motor.s

Thread: coolant change and now 4 dtc's

Thread Tools

Display

Hybrid View

Similar Threads

LIM change and blocked coolant passage

low coolant light...but not so much low coolant..?..

Coolant Change

SC Nose drive change or pulley change

How soon do you change the oil after........

Bookmarks