Engine Coolant temp sensor circuit 1 high a3 tdi 2.0?PO118 ... (Rose Moss) The engine coolant temperature (ECT) sensor is a relatively simple sensor that monitors the internal temperature of the engine. About the temp sensor, that does sound like a separate issue, possibly overlooked in the engine swap? I have a gauge in addition to my Sniper sensor, which is currently in When I put my Sniper sensor in the driver's side rear manifold location (Edelbrock RPM Air Gap), it reads a lot.
I will also try this on a longer ride, on the highway and maybe on day with negative temperature.
The engine coolant temperature (ECT) sensor is a relatively simple sensor that monitors the internal temperature of the engine.
The coolant sensor detects the change in temperature and signals the Powertrain Control Module (PCM) so it can tell if the engine is cold, warming up, at normal operating. I tried for a few days this solution and it seems it works. The fitting locations may deviate from those shown here.
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