C4 Corvette Bad Mat Sensor

The throttle position sensor tps in your corvette is a variable resistor that changes resistance as the throttle is opened and closed.

C4 corvette bad mat sensor. Front of engine below throttle body 1985 91 located under plenum. Due to this location the sensor picks up engine heat and the air temp readings are incorrect or at the least not optimal a sensor relocation kit available for 1985 1991 pn 304292 and 1992 2000 pn 304710 moves the mat sensor to a cold air duct where the air temp is correct cooler and drivability is improved. I whipped out my wallet and dutifully replaced the knock sensor 51 95 checked tps voltage it was spot on at 0 54 volts and hoped the maf sensor was ok but priced replacements just in case. Mass air flow sensor by jet.

I go into a lot of extra wiring diagram detail in the video because the map sensor wires directly into the ecm wires hot at all times so as a heads u. All modules are 100 tested with automated computerized test equipment to ensure functionality and reliability maf sensor automated test platforms read and evaluate maf sensor output singles during airflow simulation. The kits sold for. Of the c4 corvettes used a maf mass air flow sensor to determine how much air is being pulled into the intake manifold.

The exceptions are the 1984 corvette that used a speed density system a sort of predictive method of measurement and the 1990 through 1993 c4 models which were also speed density. Testing process ensures maf sensor will meet all performance requirements throughout entire operating range of vehicle and will not cause hesitation or stalling on car. Q james i have a 1988 corvette tuned port injection tpi that randomly sets a code 36. 185 ohms 210f 3400 ohms 68f 7 500 ohms 39 f.

Jet powr flo mass airflow sensors will increase your engine s horsepower low end torque and mileage by replacing the restrictive stock maf sensor which limits your aftermarket cold air intake system s. I have replaced the electronic control module ecm the mass. A mass airflow maf sensor function fault.