B3986 Engine Trouble Code
Meaning of B3986 engine trouble code is a kind of body trouble code and theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $240-$400 depending on the car, but that's usually the cost of parts because the labor is relatively simple.
B3986 Fault Symptoms :
If one of these reasons for B3986 code is occuring now you should check B3986 repair processes.
Now don't ask yourself; What should you do with B3986 code ?
The solution is here :
B3986 Possible Solution:
The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver.
B3986 Code Meaning :
|OBD-II Diagnostic Body (B) Trouble Code For Engine||Ignition System Or Misfire||Injector Circuit Malfunction - Cylinders||Ignition/Distributor Engine Speed Input Circuit Malfunction||Ignition Coil A Primary/Secondary Circuit Malfunction|
The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.
B3986 OBD-II Diagnostic Body (B) Trouble Code DescriptionB3986 engine trouble code is about Ignition Coil A Primary/Secondary Circuit Malfunction.
Main reason For B3986 CodeThe reason of B3986 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.
B3986 the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.