Will a bad temperature sensor cause a misfire?
The coolant temperature sensor can also fail in a manner that causes it to send a permanently hot signal. This can cause the computer to incorrectly compensate for a lean signal, which can result in overheating, and even misfires or engine ping.
What does a diesel fuel temperature sensor do?
The fuel temperature sensor is one factor that tells the ECU how to adjust the amount of fuel injected. When the fuel is warm, it’s less dense and burns more readily so the ecu injects more fuel to get the same mass of fuel and retards the timing.
How to replace coolant temperature sensor on VW Golf 5?
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How to fix the 2.0 TDI BMN / BKD engine misfires at idle?
This can be the definitive thread to how to fix the 2.0 TDI BMN / BKD engine judders / misfires at idle. Because I am so frustrated with this problem, I am going to find a solution!!!!! For the last several months I have suffered from the common judder /misfire / strange idle problem. VW diagnosed this problem as a Dual mass flywheel malfunction.
When does your VW TDI diesel engine Hiccup?
However, it has its issues. The 2006-11 VW TDI models seem to have a common issue, as shown by complaints to NHTSA about hesitation and or a “hiccup”, that is, a split second pause, usually when when accelerating. Most of the time, the “hiccup” lasts a second, but to a driver, it is very noticeable—enough to cause an “Aha!” or “What’s that?”
Why does my TDI engine hesitate when accelerating?
Possible Causes of TDI Hesitation or Sputtering While Accelerating. There are a couple of possibilities to check out or tell your mechanic to check out. Excessive oil gathering near the lower end of the intercooler. Disconnect the lower hose of the intercooler with a container ready to catch any oil.