Williams’ FW17 was aerodynamically superior to the Benetton but had a fundamental flaw: it was draggy and required a high-downforce setup that stressed the engine’s cooling. The DF049 in the Williams ran hotter, leading to more frequent mapping detunes.
In extreme cases, the engine may stop or refuse to start because the sensor shares a 5V supply line with critical engine sensors. df049 renault
October 26, 2023 Subject: Diagnostic Troubleshooting for DF049 – Pre-heating Unit Control Circuit Vehicle Applicability: Renault engines (primarily 1.5 dCi, 1.9 dCi, 2.0 dCi) df049 renault