Mass air flow sensor???
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Burning Brakes
Joined: Sep 2005
Posts: 826
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From: Millbury MA
Mass air flow sensor???
This is probably a stupid question. There doesn't appear to be a mass air flow sensor on my '93. I know the '94 - '96 LT1's had them how come the '91 - '93's didn't? I was about to order a less restrictive one from MAM when I looked and didn't see one.
Safety Car
Joined: Nov 2005
Posts: 4,590
Likes: 48
From: W MI
Your car has a MAP Sensor. Here's a pasted explanation about your MAP sensor and how it works.
Speed Density fuel injection system, was a great concept with 275 to 297 HP and 304 ft-lb of torque, made this the most powerful injected engine in GM small block production history. The operating system was Speed Density, meaning all metering of the fuel injection was based on the RPM, Manifold Absolute Pressure (MAP). Throttle Position Sensor (TPS) and Engine Coolant Sensor (ECT) and the Intake Air Temp (IAT) to play cleanup better, kept the AFR (Air Fuel Ratio) in check. The 8 Injectors are batch fire controlled, giving this 350 CID 5.7 liter injected engine optimal drive-ability. The fuel injection configuration on this engine was Multi Port Fuel Injection MPFI, with Bosche injectors that have a set range of 16 Ohm. The distributor is a Hall Effect style ignition system, which is located behind the water pump. The coil and module are located on the right side, passenger top right, Corvette engine. The coil on the F-Body is on the left, passenger side of engine. One of the unique visual dominating factors in determining if you have a Corvette engine or F-Body will be the brackets. The Corvette has all of the accessories (Alternator, A/C compressor) on the Left side driver. The F-Body will have the alternator on the right passenger, A/C on the passenger right and the electric air pump on the left. The fuel rail on the intake will not have a crossover tube in the front intake, behind the throttle body, the crossover and supply is located in the rear. The firing order on the LT1 1992-93 was 18436572 which are the same as the old school V8 TPI, TBI and crossfire. The distributor is non-vented, so keep this engine away from water.
Speed Density fuel injection system, was a great concept with 275 to 297 HP and 304 ft-lb of torque, made this the most powerful injected engine in GM small block production history. The operating system was Speed Density, meaning all metering of the fuel injection was based on the RPM, Manifold Absolute Pressure (MAP). Throttle Position Sensor (TPS) and Engine Coolant Sensor (ECT) and the Intake Air Temp (IAT) to play cleanup better, kept the AFR (Air Fuel Ratio) in check. The 8 Injectors are batch fire controlled, giving this 350 CID 5.7 liter injected engine optimal drive-ability. The fuel injection configuration on this engine was Multi Port Fuel Injection MPFI, with Bosche injectors that have a set range of 16 Ohm. The distributor is a Hall Effect style ignition system, which is located behind the water pump. The coil and module are located on the right side, passenger top right, Corvette engine. The coil on the F-Body is on the left, passenger side of engine. One of the unique visual dominating factors in determining if you have a Corvette engine or F-Body will be the brackets. The Corvette has all of the accessories (Alternator, A/C compressor) on the Left side driver. The F-Body will have the alternator on the right passenger, A/C on the passenger right and the electric air pump on the left. The fuel rail on the intake will not have a crossover tube in the front intake, behind the throttle body, the crossover and supply is located in the rear. The firing order on the LT1 1992-93 was 18436572 which are the same as the old school V8 TPI, TBI and crossfire. The distributor is non-vented, so keep this engine away from water.
