Your Mazda Miata engine control system detects a problem, the computer stores the diagnostic trouble
code C1644 in its memory.
To figure out what is wrong with your vehicle you must first extract the C1644 DTC For Mazda Miata.
C1644 Mazda Miata engine problem can be occur defective fan clutches are a common and often overlooked cause of engine overheating. The shear characteristics of the clutch fluid gradually deteriorates over time, with an average loss in drive efficiency of about 200 rpm per year. Eventually slippage reaches the point where effective cooling is no longer possible and overheating results. (On average, the life of a fan clutch is about the same as a water pump. If one needs to be replaced, the other usually does too.)
C1644 Mazda Miata DTC Meaning
Chassis Code - Problem is controller area network wiring bus and modules.
MFG - Manufacturer Specific
Vehicle Speed Control And Idle Control System
Control Module Throttle Actuator Position Performance
Cruise Vehicle Speed/Set Speed Difference Too High
While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the C1644 Mazda Miata code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.